1. Report Industry Investment Rating - No relevant content found 2. Core Viewpoints - On September 2, 2025, the stock index trends were differentiated. The Shanghai - Shenzhen - Beijing stock markets had a total turnover of 2912.4 billion yuan, a 134.8 - billion - yuan increase from the previous day. The CSI 500 and CSI 1000 indices, which had large previous gains, faced technical adjustment risks due to profit - taking needs. However, the trading volume remained high, and the medium - to - long - term upward logic of the stock market still existed. Policies promoted the optimization of the supply - demand structure and the recovery of corporate profits. The continuous inflow of incremental funds in the stock market drove the logic of stock valuation repair. In the short term, market funds were divided, and the stock index was expected to fluctuate widely. With the continuous rise of option implied volatility and the medium - to - long - term upward trend of the stock index, it was advisable to continue holding bull spreads or ratio spreads for a mild bullish view [2] 3. Summary by Relevant Catalogs 3.1 Option Indicators - On September 2, 2025, the 50ETF rose 0.48% to 3.128; the SSE 300ETF fell 0.56% to 4.590; the SZSE 300ETF fell 0.57% to 4.735; the CSI 300 index fell 0.74% to 4490.45; the CSI 1000 index fell 2.50% to 7313.88; the SSE 500ETF fell 2.10% to 7.055; the SZSE 500ETF fell 2.09% to 2.815; the ChiNext ETF fell 2.70% to 2.848; the Shenzhen 100ETF fell 1.97% to 3.329; the Shanghai 50 index rose 0.39% to 2992.88; the STAR 50ETF fell 2.59% to 1.39; the E Fund STAR 50ETF fell 2.50% to 1.36 [5] - The trading volume PCR and position PCR of various options changed compared with the previous trading day. For example, the trading volume PCR of the 50ETF option was 80.63 (previous day: 79.83), and the position PCR was 94.40 (previous day: 91.87) [6] - The implied volatility of the at - the - money options of various options in September 2025 and the 30 - trading - day historical volatility of the underlying assets were provided. For example, the implied volatility of the at - the - money option of the 50ETF option was 19.91%, and the 30 - trading - day historical volatility of the underlying asset was 13.99% [7] 3.2 Relevant Charts - **50ETF Option**: Included charts such as the 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [9] - **SSE 300ETF Option**: Included charts such as the SSE 300ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [21] - **SZSE 300ETF Option**: Included charts such as the SZSE 300ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [33] - **CSI 300 Index Option**: Included charts such as the CSI 300 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [36] - **CSI 1000 Index Option**: Included charts such as the CSI 1000 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [38] - **SSE 500ETF Option**: Included charts such as the SSE 500ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [52] - **SZSE 500ETF Option**: Included charts such as the SZSE 500ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [65] - **ChiNext ETF Option**: Included charts such as the ChiNext ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [75] - **Shenzhen 100ETF Option**: Included charts such as the Shenzhen 100ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [88] - **Shanghai 50 Index Option**: Included charts such as the Shanghai 50 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [101] - **STAR 50ETF Option**: Included charts such as the STAR 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [115] - **E Fund STAR 50ETF Option**: Included charts such as the E Fund STAR 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of each term [122]

1. Report Industry Investment Rating - No information provided in the report 2. Core Views of the Report - The Shanghai Composite Index, large-cap blue-chip stocks, small and medium-cap stocks, and ChiNext stocks are showing a market trend of bullish upward movement with high-level fluctuations [2] - The implied volatility of financial options is gradually rising and fluctuating at a relatively high level compared to the mean [2] - For ETF options, it is suitable to construct a bullish buyer strategy and a bull spread strategy for call options; for index options, it is suitable to construct a bullish seller strategy, a bull spread strategy for call options, and an arbitrage strategy between synthetic long futures with options and short futures [2] 3. Summary by Relevant Catalogs 3.1 Financial Market Important Index Overview - The Shanghai Composite Index closed at 3,875.53, up 0.46% with a trading volume of 120.83 billion yuan [3] - The Shenzhen Component Index closed at 12,828.95, up 1.05% with a trading volume of 154.16 billion yuan [3] - The SSE 50 Index closed at 2,981.20, up 0.16% with a trading volume of 19.53 billion yuan [3] - The CSI 300 Index closed at 4,523.71, up 0.60% with a trading volume of 77.04 billion yuan [3] - The CSI 500 Index closed at 7,110.29, up 0.94% with a trading volume of 53.62 billion yuan [3] - The CSI 1000 Index closed at 7,501.15, up 0.84% with a trading volume of 56.46 billion yuan [3] 3.2 Option Underlying ETF Market Overview - The SSE 50 ETF closed at 3.113, up 0.03% with a trading volume of 9.4711 million shares and a turnover of 2.944 billion yuan [4] - The SSE 300 ETF closed at 4.616, up 0.33% with a trading volume of 11.9399 million shares and a turnover of 5.495 billion yuan [4] - The SSE 500 ETF closed at 7.206, up 0.91% with a trading volume of 1.8308 million shares and a turnover of 1.313 billion yuan [4] - The Huaxia Science and Technology Innovation 50 ETF closed at 1.431, up 1.35% with a trading volume of 44.3074 million shares and a turnover of 6.286 billion yuan [4] - The E Fund Science and Technology Innovation 50 ETF closed at 1.398, up 1.23% with a trading volume of 12.4336 million shares and a turnover of 1.726 billion yuan [4] - The Shenzhen 300 ETF closed at 4.762, up 0.34% with a trading volume of 1.7114 million shares and a turnover of 0.812 billion yuan [4] - The Shenzhen 500 ETF closed at 2.875, up 0.59% with a trading volume of 0.9851 million shares and a turnover of 0.282 billion yuan [4] - The Shenzhen 100 ETF closed at 3.396, up 0.92% with a trading volume of 0.6658 million shares and a turnover of 0.224 billion yuan [4] - The ChiNext ETF closed at 2.927, up 2.16% with a trading volume of 20.641 million shares and a turnover of 5.979 billion yuan [4] 3.3 Option Factor - Volume and Open Interest PCR - For the SSE 50 ETF option, the volume PCR was 0.80 (up 0.14) and the open interest PCR was 0.94 (down 0.01) [5] - For the SSE 300 ETF option, the volume PCR was 0.97 (up 0.16) and the open interest PCR was 1.28 (up 0.04) [5] - For the SSE 500 ETF option, the volume PCR was 0.96 (down 0.01) and the open interest PCR was 1.32 (down 0.01) [5] - For the Huaxia Science and Technology Innovation 50 ETF option, the volume PCR was 0.65 (up 0.03) and the open interest PCR was 1.01 (up 0.03) [5] - For the E Fund Science and Technology Innovation 50 ETF option, the volume PCR was 0.74 (up 0.06) and the open interest PCR was 0.96 (up 0.02) [5] - For the Shenzhen 300 ETF option, the volume PCR was 0.95 (down 0.21) and the open interest PCR was 1.10 (unchanged) [5] - For the Shenzhen 500 ETF option, the volume PCR was 1.07 (up 0.01) and the open interest PCR was 0.84 (down 0.01) [5] - For the Shenzhen 100 ETF option, the volume PCR was 2.02 (up 0.67) and the open interest PCR was 1.15 (up 0.03) [5] - For the ChiNext ETF option, the volume PCR was 0.71 (up 0.08) and the open interest PCR was 1.43 (up 0.08) [5] - For the SSE 50 index option, the volume PCR was 0.50 (up 0.18) and the open interest PCR was 0.66 (up 0.02) [5] - For the CSI 300 index option, the volume PCR was 0.57 (up 0.07) and the open interest PCR was 0.87 (up 0.01) [5] - For the CSI 1000 index option, the volume PCR was 0.78 (up 0.02) and the open interest PCR was 1.13 (up 0.02) [5] 3.4 Option Factor - Pressure and Support Levels - For the SSE 50 ETF, the pressure level was 3.20 and the support level was 3.10 [7] - For the SSE 300 ETF, the pressure level was 4.60 and the support level was 4.40 [7] - For the SSE 500 ETF, the pressure level was 7.00 and the support level was 6.75 [7] - For the Huaxia Science and Technology Innovation 50 ETF, the pressure level was 1.40 and the support level was 1.35 [7] - For the E Fund Science and Technology Innovation 50 ETF, the pressure level was 1.55 and the support level was 1.35 [7] - For the Shenzhen 300 ETF, the pressure level was 4.80 and the support level was 4.70 [7] - For the Shenzhen 500 ETF, the pressure level was 2.85 and the support level was 2.80 [7] - For the Shenzhen 100 ETF, the pressure level was 3.70 and the support level was 3.30 [7] - For the ChiNext ETF, the pressure level was 2.95 and the support level was 2.60 [7] - For the SSE 50 index, the pressure level was 3,000 and the support level was 2,850 [7] - For the CSI 300 index, the pressure level was 4,500 and the support level was 4,250 [7] - For the CSI 1000 index, the pressure level was 7,500 and the support level was 7,000 [7] 3.5 Option Factor - Implied Volatility - For the SSE 50 ETF option, the at-the-money implied volatility was 20.53%, the weighted implied volatility was 21.38% (down 2.33%), and the difference between implied and historical volatility was 7.71% [9] - For the SSE 300 ETF option, the at-the-money implied volatility was 21.15%, the weighted implied volatility was 20.95% (down 2.37%), and the difference between implied and historical volatility was 6.39% [9] - For the SSE 500 ETF option, the at-the-money implied volatility was 25.16%, the weighted implied volatility was 25.01% (down 1.91%), and the difference between implied and historical volatility was 7.88% [9] - For the Huaxia Science and Technology Innovation 50 ETF option, the at-the-money implied volatility was 51.00%, the weighted implied volatility was 51.63% (down 6.46%), and the difference between implied and historical volatility was 28.03% [9] - For the E Fund Science and Technology Innovation 50 ETF option, the at-the-money implied volatility was 51.18%, the weighted implied volatility was 52.10% (down 6.54%), and the difference between implied and historical volatility was 27.26% [9] - For the Shenzhen 300 ETF option, the at-the-money implied volatility was 21.93%, the weighted implied volatility was 23.97% (down 3.41%), and the difference between implied and historical volatility was 8.02% [9] - For the Shenzhen 500 ETF option, the at-the-money implied volatility was 25.41%, the weighted implied volatility was 30.37% (down 1.21%), and the difference between implied and historical volatility was 13.45% [9] - For the Shenzhen 100 ETF option, the at-the-money implied volatility was 27.35%, the weighted implied volatility was 34.57% (down 0.22%), and the difference between implied and historical volatility was 13.95% [9] - For the ChiNext ETF option, the at-the-money implied volatility was 38.25%, the weighted implied volatility was 38.47% (down 4.25%), and the difference between implied and historical volatility was 14.12% [9] - For the SSE 50 index option, the at-the-money implied volatility was 22.09%, the weighted implied volatility was 21.67% (down 1.33%), and the difference between implied and historical volatility was 6.41% [9] - For the CSI 300 index option, the at-the-money implied volatility was 21.19%, the weighted implied volatility was 20.84% (down 2.50%), and the difference between implied and historical volatility was 6.20% [9] - For the CSI 1000 index option, the at-the-money implied volatility was 26.01%, the weighted implied volatility was 25.73% (down 1.58%), and the difference between implied and historical volatility was 5.83% [9] 3.6 Strategy and Recommendations - **Financial Stocks Sector (SSE 50 ETF, SSE 50)**: Directional strategy - construct a bull spread strategy for call options; volatility strategy - construct a bullish seller strategy; spot long covered call strategy - hold SSE 50 ETF and sell call options [12] - **Large-cap Blue-chip Stocks Sector (SSE 300 ETF, Shenzhen 300 ETF, CSI 300)**: Directional strategy - construct a bull spread strategy for call options; volatility strategy - construct a short volatility strategy by selling call and put options; spot long covered call strategy - hold relevant ETFs and sell call options [12] - **Large and Medium-sized Stocks Sector (Shenzhen 100 ETF)**: Directional strategy - construct a bull spread strategy for call options; volatility strategy - construct a short volatility strategy by selling call and put options; spot long covered call strategy - hold Shenzhen 100 ETF and sell call options [13] - **Small and Medium-cap Stocks Sector (SSE 500 ETF, Shenzhen 500 ETF, CSI 1000)**: Directional strategy - construct a bull spread strategy for call options; volatility strategy - for CSI 1000, construct a short volatility strategy; spot long covered call strategy - hold relevant ETFs and sell call options [13][15] - **ChiNext Sector (ChiNext ETF, Huaxia Science and Technology Innovation 50 ETF, E Fund Science and Technology Innovation 50 ETF)**: Directional strategy - construct a bull spread strategy for call options; volatility strategy - none; spot long covered call strategy - hold relevant ETFs and sell call options [15]

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - Today, all stock indices fluctuated and consolidated. The total trading volume of the Shanghai, Shenzhen, and Beijing stock markets throughout the day was 2777.6 billion yuan, a decrease of 52.5 billion yuan compared to the previous day. Currently, the trading volume of the stock market remains at a high level, indicating that the overall market sentiment is still relatively optimistic. In the short term, due to the significant increase in some stocks, there is a risk of technical adjustment caused by profit - taking of profitable funds, and there is a need for funds to rotate between high - and low - valued stocks. The main driving forces for this round of stock index rebound are the positive policy expectations and the loose liquidity in the capital market. Anti - involution policies and consumption - promotion policies promote the optimization of the supply - demand structure from both the supply and demand sides, leading to a moderate recovery of the price index and the repair of corporate profits. In terms of the capital market, the margin trading balance has risen rapidly, non - bank deposits have increased sharply, and long - term funds have continued to enter the market. The continuous inflow of incremental funds into the stock market has boosted the logic of stock valuation repair. Overall, the current market sentiment is generally positive, and the upward trend remains unchanged. However, there are some differences in the short - term market, and the stock index is expected to maintain a loose and volatile trend in the short term. - Currently, the implied volatility of options continues to rise. Considering the long - and medium - term upward trend of the stock index, investors can continue to hold bull spreads or ratio spreads for a moderate bullish view [3]. 3. Summary According to Relevant Catalogs 3.1 Option Indicators - On September 1, 2025, the 50ETF rose 0.03% to close at 3.113; the 300ETF (Shanghai Stock Exchange) rose 0.33% to close at 4.616; the 300ETF (Shenzhen Stock Exchange) rose 0.34% to close at 4.762; the CSI 300 Index rose 0.60% to close at 4523.71; the CSI 1000 Index rose 0.84% to close at 7501.15; the 500ETF (Shanghai Stock Exchange) rose 0.91% to close at 7.206; the 500ETF (Shenzhen Stock Exchange) rose 0.59% to close at 2.875; the GEM ETF rose 2.16% to close at 2.927; the Shenzhen 100ETF rose 0.92% to close at 3.396; the SSE 50 Index rose 0.16% to close at 2981.20; the STAR 50ETF rose 1.35% to close at 1.43; the E Fund STAR 50ETF rose 1.23% to close at 1.40 [5]. - The trading volume PCR and position PCR of various options changed compared to the previous trading day. For example, the trading volume PCR of the 50ETF option was 79.83 (previous day: 66.32), and the position PCR was 94.29 (previous day: 95.41) [6]. - The implied volatility of at - the - money options in September 2025 and the 30 - trading - day historical volatility of the underlying assets of various options are provided. For instance, the implied volatility of the at - the - money 50ETF option in September 2025 was 21.45%, and the 30 - trading - day historical volatility of the underlying asset was 13.99% [7]. 3.2 Relevant Charts - **50ETF Option**: The report includes charts of the 50ETF option, such as the 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [9][11][13]. - **Shanghai Stock Exchange 300ETF Option**: There are charts showing the 300ETF (Shanghai Stock Exchange) option, including the 300ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [21][23][25]. - **Shenzhen Stock Exchange 300ETF Option**: Charts for the 300ETF (Shenzhen Stock Exchange) option are presented, including the 300ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [33][34]. - **CSI 300 Index Option**: Charts related to the CSI 300 index option are provided, including the CSI 300 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [35][36]. - **CSI 1000 Index Option**: There are charts for the CSI 1000 index option, such as the CSI 1000 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [37][38]. - **Shanghai Stock Exchange 500ETF Option**: The report contains charts of the 500ETF (Shanghai Stock Exchange) option, including the 500ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [51][53][55]. - **Shenzhen Stock Exchange 500ETF Option**: Charts for the 500ETF (Shenzhen Stock Exchange) option are shown, including the 500ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [64][66][68]. - **GEM ETF Option**: There are charts of the GEM ETF option, including the GEM ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [77][79][81]. - **Shenzhen 100ETF Option**: The report provides charts of the Shenzhen 100ETF option, including the Shenzhen 100ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [90][92][94]. - **SSE 50 Index Option**: Charts related to the SSE 50 index option are included, such as the SSE 50 index trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [103][105][107]. - **STAR 50ETF Option**: There are charts of the STAR 50ETF option, including the STAR 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [114][115][116]. - **E Fund STAR 50ETF Option**: The report presents charts of the E Fund STAR 50ETF option, including the E Fund STAR 50ETF trend, option volatility, trading volume PCR, position PCR, implied volatility curve, and the at - the - money implied volatility of different tenors [120][122][124].

1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The stock market shows a bullish upward and high - level oscillating market trend, with the Shanghai Composite Index, large - cap blue - chip stocks, small and medium - cap stocks, and ChiNext stocks all presenting such characteristics [3]. - The implied volatility of financial options gradually rises and fluctuates at a relatively high level above the mean [3]. - For ETF options, it is suitable to construct a bullish buyer strategy and a call option bull spread combination strategy; for stock index options, it is suitable to construct a bullish seller strategy, a call option bull spread combination strategy, and an arbitrage strategy of synthetic long futures and short futures [3]. 3. Summary by Relevant Catalogs 3.1 Financial Market Index Overview - The Shanghai Composite Index closed at 3,857.93, up 0.37% with a trading volume of 122.17 billion yuan and a volume change of - 43.5 billion yuan [4]. - The Shenzhen Component Index closed at 12,696.15, up 0.99% with a trading volume of 157.66 billion yuan and a volume change of - 129 billion yuan [4]. - The Shanghai 50 Index closed at 2,976.47, up 0.53% with a trading volume of 22.65 billion yuan and a volume change of 31.3 billion yuan [4]. - The CSI 300 Index closed at 4,496.76, up 0.74% with a trading volume of 83.12 billion yuan and a volume change of 91.8 billion yuan [4]. - The CSI 500 Index closed at 7,043.94, up 0.47% with a trading volume of 52.3 billion yuan and a volume change of - 40.6 billion yuan [4]. - The CSI 1000 Index closed at 7,438.68, down 0.11% with a trading volume of 56.51 billion yuan and a volume change of - 66.7 billion yuan [4]. 3.2 Option - related ETF Market Overview - The closing prices, price changes, trading volumes, and trading volume changes of various option - related ETFs are presented, such as the Shanghai 50 ETF closing at 3.112, up 0.55% with a trading volume of 12.4274 million shares and a volume change of 12.3123 million shares [5]. 3.3 Option Factor - Volume and Position PCR - The volume, volume change, position, position change, volume PCR, and position PCR of different option varieties are provided, for example, the Shanghai 50 ETF option has a volume PCR of 0.66 (down 0.14) and a position PCR of 0.95 (up 0.02) [6]. 3.4 Option Factor - Pressure and Support Points - The pressure and support points of different option varieties are given, like the Shanghai 50 ETF has a pressure point of 3.20 and a support point of 3.00 [8]. 3.5 Option Factor - Implied Volatility - The implied volatility data of different option varieties are shown, including the at - the - money implied volatility, weighted implied volatility, and its change, etc. For instance, the Shanghai 50 ETF option has an at - the - money implied volatility of 22.48% and a weighted implied volatility of 23.72% (up 0.16%) [11]. 3.6 Strategy and Suggestions - The financial option sector is divided into large - cap blue - chip stocks, small and medium - sized boards, and the ChiNext board. Different sectors and corresponding option varieties are recommended for different strategies [13]. - For each sector, specific option strategies are proposed based on the analysis of the underlying market, option factor research, including directional strategies and volatility strategies. For example, in the financial stock sector, for the Shanghai 50 ETF, a call option bull spread combination strategy is recommended for directional trading [14].

Report Summary 1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints - The stock market shows a market trend of long - position upward and high - level oscillation for the Shanghai Composite Index, large - cap blue - chip stocks, small - and medium - cap stocks, and ChiNext stocks [3]. - The implied volatility of financial options gradually rises to a relatively high level around the mean [3]. - For ETF options, it is suitable to construct a long - biased buyer strategy and a bull spread combination strategy for call options; for index options, it is suitable to construct a long - biased seller strategy, a bull spread combination strategy for call options, and an arbitrage strategy between long synthetic futures and short futures [3]. 3. Summary by Directory Financial Market Important Index Overview - The Shanghai Composite Index closed at 3,843.60, up 43.25 points or 1.14%, with a trading volume of 126.52 billion yuan, a decrease of 6.17 billion yuan [4]. - The Shenzhen Component Index closed at 12,571.37, up 276.30 points or 2.25%, with a trading volume of 170.56 billion yuan, a decrease of 13.31 billion yuan [4]. - Other important indices such as the SSE 50, CSI 300, CSI 500, and CSI 1000 also showed varying degrees of increase [4]. Option - underlying ETF Market Overview - The SSE 50 ETF closed at 3.095, up 0.044 or 1.44%, with a trading volume of 11.5137 million shares, an increase of 11.4144 million shares, and a trading volume of 3.525 billion yuan, an increase of 0.462 billion yuan [5]. - Other ETFs like the SSE 300 ETF, SSE 500 ETF, and others also have their own performance data [5]. Option Factor - Volume and Position PCR - For the SSE 50 ETF, the trading volume PCR is 0.80 (a change of 0.07), and the position PCR is 0.93 (a change of - 0.15) [6]. - Different option varieties have different volume and position PCR values and changes [6]. Option Factor - Pressure and Support Points - The SSE 50 ETF has a pressure point of 3.10 and a support point of 3.00 [8]. - Each option variety has corresponding pressure and support points [8]. Option Factor - Implied Volatility - The SSE 50 ETF has a at - the - money implied volatility of 22.83%, a weighted implied volatility of 23.56% (a change of 0.35%), and an annual average of 15.38% [11]. - Different option varieties have different implied volatility data [11]. Strategy and Suggestions - The financial option sector is divided into large - cap blue - chip stocks, small - and medium - sized boards, and the ChiNext board. Each board has corresponding option varieties [13]. - For different option varieties, strategies are provided from aspects of underlying market analysis, option factor research, and option strategy suggestions [13]. Specific Option Variety Strategies - **Financial Stocks Board (SSE 50 ETF, SSE 50)**: The SSE 50 ETF shows a long - position upward trend with support below. It is recommended to construct a bull spread combination strategy for call options and a short - biased long - position combination strategy [14]. - **Large - cap Blue - chip Stocks Board (SSE 300 ETF, Shenzhen 300 ETF, CSI 300)**: The SSE 300 ETF shows a short - term long - position upward trend. Strategies include constructing a bull spread combination strategy for call options and a short - volatility combination strategy [14]. - **Large - cap Stocks Board (Shenzhen 100 ETF)**: The Shenzhen 100 ETF shows a long - position upward trend. Suggested strategies include constructing a bull spread combination strategy for call options and a short - volatility combination strategy [15]. - **Small - and Medium - sized Boards (SSE 500 ETF, Shenzhen 500 ETF, CSI 1000)**: These varieties show short - term long - position upward trends. Strategies mainly include constructing bull spread combination strategies for call options [15][16]. - **ChiNext Board (ChiNext ETF, Huaxia Science and Technology Innovation 50 ETF, E Fund Science and Technology Innovation 50 ETF)**: These varieties show long - position upward trends. Strategies include constructing bull spread combination strategies for call options [16].

Report Industry Investment Rating - Not provided in the given content Core Viewpoints - On August 28, 2025, all stock indices showed an N-shaped trend and closed higher after oscillating throughout the day. The total trading volume of the Shanghai, Shenzhen, and Beijing stock markets was 3.0009 trillion yuan, a decrease of 196.9 billion yuan from the previous day. Due to the significant gains of some stocks, the dynamic price-to-earnings ratios of all stock indices were at the 80% quantile level in the past five years, and the willingness of profit-taking funds to take profits increased. Therefore, the stock indices had a need for technical adjustment. However, the trading volume of the stock market remained at a high level, indicating that the overall market sentiment was still optimistic. The rebound momentum of the stock indices mainly came from the positive policy expectations and the loose liquidity in the capital market. The anti-involution policy and the consumption-promotion policy promoted the optimization of the supply-demand structure from both the supply and demand sides, promoted a moderate recovery of the price index, and promoted the repair of corporate profits. Recently, the market interest rate has declined, the liquidity has been loose, and the willingness of funds to allocate to the stock market has increased. The significant increase in the margin trading balance and the obvious year-on-year increase in non-bank deposits reflected the signs of funds entering the market. In general, the stock indices will mainly oscillate and consolidate in the short term and still rise in the medium and long term. Currently, the implied volatility of options continues to rise. Considering the long-term upward trend of the stock indices, investors can continue to hold bull spreads or ratio spreads to moderately bullish. [2] Summary According to Relevant Catalogs 1 Option Indicators - On August 28, 2025, the 50ETF rose 1.44% to close at 3.095; the 300ETF (Shanghai Stock Exchange) rose 1.88% to close at 4.559; the 300ETF (Shenzhen Stock Exchange) rose 1.95% to close at 4.708; the CSI 300 Index rose 1.77% to close at 4463.78; the CSI 1000 Index rose 1.51% to close at 7447.11; the 500ETF (Shanghai Stock Exchange) rose 2.17% to close at 7.104; the 500ETF (Shenzhen Stock Exchange) rose 2.23% to close at 2.838; the ChiNext ETF rose 4.08% to close at 2.806; the Shenzhen 100ETF rose 2.60% to close at 3.319; the SSE 50 Index rose 1.45% to close at 2960.73; the STAR 50ETF rose 7.18% to close at 1.43; the E Fund STAR 50ETF rose 7.51% to close at 1.40. [5] - The trading volume PCR and holding volume PCR of various options on August 28, 2025, and the comparison with the previous trading day are provided in detail. For example, the trading volume PCR of the SSE 50ETF option was 79.99, compared with 73.04 on the previous trading day; the holding volume PCR was 91.38, compared with 90.15 on the previous trading day. [6] - The implied volatility of the at-the-money options in September 2025 and the 30-day historical volatility of the underlying assets of various options are provided. For example, the implied volatility of the at-the-money options of the SSE 50ETF option in September 2025 was 22.21%, and the 30-day historical volatility of the underlying asset was 13.66%. [7][8] 2 Related Charts - Multiple charts are presented for different types of options, including the trend of the underlying asset, option volatility, trading volume PCR, holding volume PCR, implied volatility curve, and at-the-money implied volatility of different tenors. For example, for the SSE 50ETF option, there are charts such as the SSE 50ETF trend, SSE 50ETF option volatility, SSE 50ETF option trading volume PCR, etc. [9][10][11]

Report Summary 1. Report Industry Investment Rating No relevant content provided. 2. Core Viewpoints of the Report - The stock market shows a market trend of long - position upward and high - level oscillation for the Shanghai Composite Index, large - cap blue - chip stocks, small - and medium - cap stocks, and ChiNext stocks [3]. - The implied volatility of financial options gradually rises to a relatively high level around the mean [3]. - For ETF options, it is suitable to construct a long - biased buyer strategy and a bull spread strategy for call options; for index options, it is suitable to construct a long - biased seller strategy, a bull spread strategy for call options, and an arbitrage strategy between synthetic long futures of options and short futures [3]. 3. Summary by Related Catalogs Market Overview - **Financial Market Important Indexes**: The Shanghai Composite Index closed at 3,800.35, down 1.76%; the Shenzhen Component Index closed at 12,295.07, down 1.43%; other major indexes also showed varying degrees of decline [4]. - **Option - Underlying ETFs**: Most ETFs showed a downward trend, except for the Huaxia Science and Technology Innovation 50 ETF, which had a slight increase [5]. - **Option Factors - Volume and Position PCR**: Different option varieties have different volume and position PCR values and their changes, which reflect the strength of the option - underlying market and the turning point of the market [6]. - **Option Factors - Pressure and Support Points**: From the perspective of the strike prices with the largest open interest of call and put options, the pressure and support points of each option - underlying are analyzed [8]. - **Option Factors - Implied Volatility**: The implied volatility of different option varieties shows different levels and changes, and the implied - historical volatility difference also varies [11]. Strategy and Recommendations - **Sector Classification**: The financial options sector is divided into large - cap blue - chip stocks, small - and medium - sized boards, and the ChiNext board, with specific option varieties in each sector [13]. - **Option Strategies for Each Sector** - **Financial Stocks (Shanghai 50, Shanghai 50ETF)**: The Shanghai 50ETF shows a long - position upward trend with support below. It is recommended to construct a bull spread strategy for call options, a long - biased seller strategy, and a covered call strategy [14]. - **Large - Cap Blue - Chip Stocks (Shanghai 300ETF, Shenzhen 300ETF, CSI 300)**: These varieties show a short - term long - position upward trend. It is recommended to construct a bull spread strategy for call options, a short - volatility strategy of selling call and put options, and a covered call strategy [14]. - **Large - and Medium - Sized Stocks (Shenzhen 100ETF)**: The Shenzhen 100ETF shows a long - position upward trend. It is recommended to construct a bull spread strategy for call options, a short - volatility strategy of selling call and put options, and a covered call strategy [15]. - **Small - and Medium - Sized Boards (Shanghai 500ETF, Shenzhen 500ETF, CSI 1000)**: These varieties show a short - term long - position upward trend. It is recommended to construct a bull spread strategy for call options and a covered call strategy for some varieties [15][16]. - **ChiNext Board (Huaxia Science and Technology Innovation 50ETF, E Fund Science and Technology Innovation 50ETF, ChiNext ETF)**: These varieties show a long - position upward trend. It is recommended to construct a bull spread strategy for call options and a covered call strategy [16].

1. Report Industry Investment Rating - Not provided in the content 2. Core View of the Report - On August 26, 2025, the stock indices showed narrow - range fluctuations. The total trading volume of the Shanghai, Shenzhen, and Beijing stock markets was 2709.8 billion yuan, a decrease of 467.1 billion yuan from the previous day. Due to the significant gains of some stocks, the willingness of profit - taking funds to close positions increased, and the stock indices needed technical adjustments. The previously high - flying sectors showed signs of capital rotation. The stock market sentiment remained relatively optimistic, supported by positive policy expectations, and the continuous inflow of funds promoted valuation repair. Anti - involution and consumption - promotion policies optimized the supply - demand structure, promoted a moderate recovery of the price index, repaired corporate profits, and drove a positive cycle. With the downward trend of market interest rates and loose liquidity, incremental funds from insurance, social security, margin trading, and private equity continued to flow into the stock market. In the short term, the stock market sentiment remained positive, and the stock indices were expected to fluctuate strongly. Given the continuous rise of implied volatility in options and the long - term upward trend of stock indices, it was advisable to hold bull spreads or ratio spreads for a mild long - position view [3] 3. Summary of Each Section 3.1 Option Indicators - On August 26, 2025, 50ETF fell 0.74% to 3.101; 300ETF (SSE) fell 0.53% to 4.541; 300ETF (SZSE) fell 0.57% to 4.685; the CSI 300 Index fell 0.37% to 4452.59; the CSI 1000 Index fell 0.02% to 7476.47; 500ETF (SSE) rose 0.16% to 7.048; 500ETF (SZSE) rose 0.04% to 2.814; the GEM ETF fell 0.77% to 2.716; the Shenzhen 100ETF fell 0.09% to 3.274; the SSE 50 Index fell 0.67% to 2969.78; the STAR 50ETF fell 1.47% to 1.34; E Fund STAR 50ETF fell 1.51% to 1.31 [6] - The PCR values of various options, including trading volume PCR and open interest PCR, changed compared with the previous trading day. For example, the trading volume PCR of 50ETF options was 70.85 (previous day: 59.17), and the open interest PCR was 114.88 (previous day: 119.83) [7] - The implied volatility of at - the - money options in September 2025 and the 30 - day historical volatility of the underlying assets for different options were provided. For instance, the implied volatility of at - the - money options of 50ETF options was 22.97%, and the 30 - day historical volatility of the underlying asset was 12.26% [8] 3.2 Relevant Charts - **SSE 50ETF Options**: Charts include the SSE 50ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [10][11][12][14][17][19] - **SSE 300ETF Options**: Charts involve the SSE 300ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [22][23][24][29][31][33] - **SZSE 300ETF Options**: Charts cover the SZSE 300ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [25][26][27][29][31][33] - **CSI 300 Index Options**: Charts include the CSI 300 index trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [37][38][39][41][43][47] - **CSI 1000 Index Options**: Charts involve the CSI 1000 index trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [50][51][52][54][58][60] - **SSE 500ETF Options**: Charts cover the SSE 500ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [63][64][65][67][71][73] - **SZSE 500ETF Options**: Charts include the SZSE 500ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [76][77][78][80][85][86] - **GEM ETF Options**: Charts involve the GEM ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [89][90][91][93][97][99] - **Shenzhen 100ETF Options**: Charts cover the Shenzhen 100ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [102][103][104][105][108][110] - **SSE 50 Index Options**: Charts include the SSE 50 index trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [113][114][115][117][121][123] - **STAR 50ETF Options**: Charts involve the STAR 50ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [126][127][128][132][135][136] - **E Fund STAR 50ETF Options**: Charts cover the E Fund STAR 50ETF trend, option volatility, trading volume PCR, open interest PCR, implied volatility curve, and at - the - money implied volatility of different tenors [133][134][135][136][139][140]

Report Summary 1. Investment Rating No investment rating for the industry is provided in the report. 2. Core Viewpoints - The stock market shows a bullish upward trend, with the Shanghai Composite Index, large - cap blue - chip stocks, small and medium - cap stocks, and ChiNext stocks all rising [2]. - The implied volatility of financial options is gradually rising and fluctuating at a relatively high level compared to the mean [2]. - For ETF options, it is suitable to construct bullish buyer strategies and call option bull spread combination strategies; for index options, it is suitable to construct bullish seller strategies, call option bull spread combination strategies, and arbitrage strategies between synthetic long option futures and short futures [2]. 3. Summary by Directory 3.1 Financial Market Index Overview - Major indices such as the Shanghai Composite Index, Shenzhen Component Index, Shanghai 50, CSI 300, CSI 500, and CSI 1000 all showed gains, with the Shenzhen Component Index having the highest increase of 2.26% [3]. - The trading volume of these indices also increased, with the Shenzhen Component Index having an increase of 328.6 billion yuan in trading volume [3]. 3.2 ETF Market Overview - Most ETFs, including Shanghai 50ETF, Shanghai 300ETF, and ChiNext ETF, showed price increases, with the ChiNext ETF having the highest increase of 2.82% [4]. - The trading volume of most ETFs increased, but the trading volume of Shanghai 50ETF decreased by 1.53 billion yuan [4]. 3.3 Option Factor - Volume and Position PCR - The volume PCR and position PCR of different option varieties showed different trends, which can be used to judge the strength of the option underlying and the turning point of the market [5][6]. 3.4 Option Factor - Pressure and Support Points - The pressure and support points of different option varieties are obtained from the strike prices of the maximum open interest of call and put options, which can help analyze the price trend of the underlying [7]. 3.5 Option Factor - Implied Volatility - The implied volatility of different option varieties increased to varying degrees, with the implied volatility of E Fund Science and Technology Innovation 50ETF having the largest increase of 11.58 percentage points [8]. 3.6 Strategy and Suggestions - **Financial Stock Sector (Shanghai 50ETF, Shanghai 50)**: The Shanghai 50ETF shows a bullish upward trend. Suggested strategies include constructing call option bull spread combination strategies, bullish seller combination strategies, and spot long covered call strategies [11]. - **Large - Cap Blue - Chip Stock Sector (Shanghai 300ETF, Shenzhen 300ETF, CSI 300)**: These show a short - term bullish upward trend. Suggested strategies include call option bull spread combination strategies, short - volatility combination strategies, and spot long covered call strategies [11]. - **Large - and Medium - Sized Stock Sector (Shenzhen 100ETF)**: It shows a bullish upward trend. Suggested strategies include call option bull spread combination strategies, short - volatility combination strategies, and spot long covered call strategies [12]. - **Small - and Medium - Cap Stock Sector (Shanghai 500ETF, Shenzhen 500ETF, CSI 1000)**: They show a short - term bullish upward trend. Suggested strategies include call option bull spread combination strategies, short - volatility strategies for CSI 1000, and spot long covered call strategies [12][13]. - **ChiNext Sector (ChiNext ETF, Huaxia Science and Technology Innovation 50ETF, E Fund Science and Technology Innovation 50ETF)**: They show a bullish upward trend. Suggested strategies include call option bull spread combination strategies and spot long covered call strategies [13].

1. Report Industry Investment Rating - No relevant content provided 2. Core Viewpoints of the Report - The stock market shows a bullish upward trend, with the Shanghai Composite Index, large-cap blue-chip stocks, small and medium-cap stocks, and ChiNext stocks all performing well [3]. - The implied volatility of financial options has gradually risen to a relatively high level around the mean [3]. - For ETF options, it is suitable to construct bullish buyer strategies and call option bull spread combination strategies; for index options, it is suitable to construct bullish seller strategies, call option bull spread combination strategies, and arbitrage strategies between synthetic long options and short futures [3]. 3. Summary by Relevant Catalogs 3.1 Financial Market Important Index Overview - The Shanghai Composite Index closed at 3,825.76, up 54.66 points or 1.45%, with a trading volume of 109.51 billion yuan and an increase of 9.73 billion yuan [4]. - The Shenzhen Component Index closed at 12,166.06, up 246.30 points or 2.07%, with a trading volume of 145.16 billion yuan and an increase of 2.53 billion yuan [4]. - The SSE 50 Index closed at 2,928.61, up 66.44 points or 2.32%, with a trading volume of 18.06 billion yuan and an increase of 4.42 billion yuan [4]. - The CSI 300 Index closed at 4,378.00, up 89.93 points or 2.10%, with a trading volume of 67.59 billion yuan and an increase of 11.74 billion yuan [4]. - The CSI 500 Index closed at 6,822.85, up 118.68 points or 1.77%, with a trading volume of 44.67 billion yuan and an increase of 4.26 billion yuan [4]. - The CSI 1000 Index closed at 7,362.94, up 109.60 points or 1.51%, with a trading volume of 52.78 billion yuan and an increase of 1.13 billion yuan [4]. 3.2 Option Underlying ETF Market Overview - The SSE 50 ETF closed at 3.066, up 0.076 or 2.54%, with a trading volume of 12.6586 million shares and an increase of 12.5712 million shares, and a trading value of 3.839 billion yuan and an increase of 1.228 billion yuan [5]. - The SSE 300 ETF closed at 4.479, up 0.101 or 2.31%, with a trading volume of 13.6026 million shares and an increase of 13.5113 million shares, and a trading value of 6.031 billion yuan and an increase of 2.034 billion yuan [5]. - The SSE 500 ETF closed at 6.915, up 0.129 or 1.90%, with a trading volume of 8.4378 million shares and an increase of 8.4080 million shares, and a trading value of 5.803 billion yuan and an increase of 3.775 billion yuan [5]. - The Huaxia Science and Technology Innovation 50 ETF closed at 1.323, up 0.115 or 9.52%, with a trading volume of 94.1619 million shares and an increase of 93.7098 million shares, and a trading value of 11.986 billion yuan and an increase of 6.486 billion yuan [5]. - The E Fund Science and Technology Innovation 50 ETF closed at 1.295, up 0.115 or 9.75%, with a trading volume of 26.3722 million shares and an increase of 26.2645 million shares, and a trading value of 3.282 billion yuan and an increase of 2.001 billion yuan [5]. - The Shenzhen 300 ETF closed at 4.619, up 0.104 or 2.30%, with a trading volume of 1.8071 million shares and an increase of 1.7849 million shares, and a trading value of 0.827 billion yuan and a decrease of 0.176 billion yuan [5]. - The Shenzhen 500 ETF closed at 2.762, up 0.050 or 1.84%, with a trading volume of 2.5524 million shares and an increase of 2.5422 million shares, and a trading value of 0.701 billion yuan and an increase of 0.0425 billion yuan [5]. - The Shenzhen 100 ETF closed at 3.208, up 0.084 or 2.69%, with a trading volume of 0.6911 million shares and an increase of 0.6850 million shares, and a trading value of 0.0218 billion yuan and an increase of 0.0028 billion yuan [5]. - The ChiNext ETF closed at 2.662, up 0.090 or 3.50%, with a trading volume of 21.6591 million shares and an increase of 21.4708 million shares, and a trading value of 5.682 billion yuan and an increase of 0.823 billion yuan [5]. 3.3 Option Factor - Volume and Open Interest PCR - The volume PCR of the SSE 50 ETF is 0.64, down 0.09, and the open interest PCR is 1.20, up 0.15 [6]. - The volume PCR of the SSE 300 ETF is 0.71, down 0.01, and the open interest PCR is 1.33, up 0.11 [6]. - The volume PCR of the SSE 500 ETF is 0.77, up 0.03, and the open interest PCR is 1.50, up 0.11 [6]. - The volume PCR of the Huaxia Science and Technology Innovation 50 ETF is 0.51, up 0.01, and the open interest PCR is 1.08, up 0.27 [6]. - The volume PCR of the E Fund Science and Technology Innovation 50 ETF is 0.55, up 0.12, and the open interest PCR is 1.04, up 0.18 [6]. - The volume PCR of the Shenzhen 300 ETF is 0.86, down 0.22, and the open interest PCR is 1.39, up 0.13 [6]. - The volume PCR of the Shenzhen 500 ETF is 0.69, down 0.15, and the open interest PCR is 1.13, up 0.05 [6]. - The volume PCR of the Shenzhen 100 ETF is 1.18, down 0.02, and the open interest PCR is 1.42, up 0.02 [6]. - The volume PCR of the ChiNext ETF is 0.68, unchanged, and the open interest PCR is 1.46, up 0.15 [6]. - The volume PCR of the SSE 50 index option is 0.32, up 0.01, and the open interest PCR is 0.58, up 0.01 [6]. - The volume PCR of the CSI 300 index option is 0.44, down 0.03, and the open interest PCR is 0.83, up 0.01 [6]. - The volume PCR of the CSI 1000 index option is 0.62, up 0.13, and the open interest PCR is 1.10, up 0.07 [6]. 3.4 Option Factor - Pressure and Support Levels - The pressure level of the SSE 50 ETF is 3.10, and the support level is 3.00 [8]. - The pressure level of the SSE 300 ETF is 4.50, and the support level is 4.40 [8]. - The pressure level of the SSE 500 ETF is 7.00, and the support level is 6.75 [8]. - The pressure level of the Huaxia Science and Technology Innovation 50 ETF is 1.30, and the support level is 1.05 [8]. - The pressure level of the E Fund Science and Technology Innovation 50 ETF is 1.30, and the support level is 1.20 [8]. - The pressure level of the Shenzhen 300 ETF is 4.60, and the support level is 4.30 [8]. - The pressure level of the Shenzhen 500 ETF is 2.80, and the support level is 2.70 [8]. - The pressure level of the Shenzhen 100 ETF is 3.30, and the support level is 2.95 [8]. - The pressure level of the ChiNext ETF is 2.60, and the support level is 2.55 [8]. - The pressure level of the SSE 50 index option is 3,200, and the support level is 2,750 [8]. - The pressure level of the CSI 300 index option is 4,700, and the support level is 4,250 [8]. - The pressure level of the CSI 1000 index option is 7,400, and the support level is 6,500 [8]. 3.5 Option Factor - Implied Volatility - The at-the-money implied volatility of the SSE 50 ETF is 21.26%, the weighted implied volatility is 22.12%, up 3.59%, and the historical volatility is 13.08%, with an implied - historical volatility difference of 9.03% [11]. - The at-the-money implied volatility of the SSE 300 ETF is 18.74%, the weighted implied volatility is 21.09%, up 2.59%, and the historical volatility is 13.90%, with an implied - historical volatility difference of 7.19% [11]. - The at-the-money implied volatility of the SSE 500 ETF is 22.91%, the weighted implied volatility is 23.67%, up 0.62%, and the historical volatility is 15.97%, with an implied - historical volatility difference of 7.70% [11]. - The at-the-money implied volatility of the Huaxia Science and Technology Innovation 50 ETF is 50.49%, the weighted implied volatility is 52.49%, up 17.96%, and the historical volatility is 21.96%, with an implied - historical volatility difference of 30.53% [11]. - The at-the-money implied volatility of the E Fund Science and Technology Innovation 50 ETF is 52.89%, the weighted implied volatility is 52.70%, up 17.95%, and the historical volatility is 23.03%, with an implied - historical volatility difference of 29.67% [11]. - The at-the-money implied volatility of the Shenzhen 300 ETF is 19.16%, the weighted implied volatility is 25.75%, up 2.58%, and the historical volatility is 14.64%, with an implied - historical volatility difference of 11.11% [11]. - The at-the-money implied volatility of the Shenzhen 500 ETF is 22.22%, the weighted implied volatility is 25.33%, up 0.75%, and the historical volatility is 16.02%, with an implied - historical volatility difference of 9.30% [11]. - The at-the-money implied volatility of the Shenzhen 100 ETF is 23.09%, the weighted implied volatility is 33.96%, up 3.77%, and the historical volatility is 18.19%, with an implied - historical volatility difference of 15.77% [11]. - The at-the-money implied volatility of the ChiNext ETF is 33.63%, the weighted implied volatility is 35.42%, up 1.35%, and the historical volatility is 21.44%, with an implied - historical volatility difference of 13.98% [11]. - The at-the-money implied volatility of the SSE 50 index option is 21.36%, the weighted implied volatility is 20.98%, up 1.46%, and the historical volatility is 14.41%, with an implied - historical volatility difference of 6.57% [11]. - The at-the-money implied volatility of the CSI 300 index option is 20.28%, the weighted implied volatility is 19.75%, up 0.39%, and the historical volatility is 13.93%, with an implied - historical volatility difference of 5.82% [11]. - The at-the-money implied volatility of the CSI 1000 index option is 26.94%, the weighted implied volatility is 27.24%, down 0.88%, and the historical volatility is 17.95%, with an implied - historical volatility difference of 9.29% [11]. 3.6 Strategy and Recommendations - **Financial Stocks Sector (SSE 50 ETF, SSE 50)**: The SSE 50 ETF has shown a bullish upward trend since July, with the implied volatility rising to above the mean, and the open interest PCR at 1.20 indicating a strong market. The pressure level is 3.10, and the support level is 3.00. Recommended strategies include constructing a call option bull spread combination strategy and a short - biased bullish combination strategy [14]. - **Large - and Medium - Cap Stocks Sector (Shenzhen 100 ETF)**: The Shenzhen 100 ETF has shown a bullish upward trend since late June, with the implied volatility rising to around the mean, and the open interest PCR above 1.00 indicating a strong market. The pressure level is 3.30, and the support level is 2.95. Recommended strategies include constructing a call option bull spread combination strategy and a short - volatility strategy [15]. - **Small - and Medium - Cap Stocks Sector (SSE 500 ETF, Shenzhen 500 ETF, CSI 1000)**: The SSE 500 ETF has shown a bullish upward trend since June, with the implied volatility rising slightly around the mean, and the open interest PCR above 1.00 indicating a bullish market. The pressure level of the SSE 500 ETF is 7.00, and the support level is 6.75. The CSI 1000 index has maintained a bullish upward trend for more than two months, with the implied volatility rising to a relatively high level, and the open interest PCR above 1.00 indicating a bullish market. Recommended strategies include constructing call option bull spread combination strategies and short - volatility strategies [15][16]. - **ChiNext Sector (ChiNext ETF, Huaxia Science and Technology Innovation 50 ETF, E Fund Science and Technology Innovation 50 ETF)**: The ChiNext ETF has shown a bullish upward trend for four months, with the implied volatility rising significantly above the mean, and the open interest PCR above 1.10 indicating a bullish market. The pressure level is 2.60, and the support level is 2.55. Recommended strategies include constructing call option bull spread combination strategies [16].