Group 1: Implied Volatility Index and Volatility Spread - The financial option implied volatility index reflects the 30 - day implied volatility (IV) trend as of the previous trading day, and the commodity option implied volatility index is obtained by weighting the IV of the two - strike options above and below the at - the - money option of the main contract, reflecting the IV change trend of the main contract [2] - The difference between the IV index and historical volatility (HV) indicates the relative level of IV to HV. A larger difference means IV is relatively higher than HV, and a smaller difference means IV is relatively lower [2] Group 2: Implied Volatility and Historical Volatility Charts - There are charts showing the IV, HV, and IV - HV differences for various financial and commodity options, including stock - index options (300 index, 1000 index, 50ETF, 500ETF), precious metals (silver, gold), agricultural products (soybean meal, corn, sugar, cotton), energy and chemicals (PTA, methanol, rubber), base metals (copper, aluminum, zinc, PVC), and others (urea, rapeseed meal, palm oil) [3][5] Group 3: Quantile Ranking of Volatility Index and Volatility Spread - The implied volatility quantile represents the current level of a variety's implied volatility in history. A high quantile means the current IV is high, and a low quantile means the current IV is low [6] - The volatility spread is the difference between the implied volatility index and historical volatility [6] - There are rankings of historical volatility quantiles and implied volatility quantiles for different varieties such as 300 index, 50ETF, PTA, etc. [7]

1. Report Industry Investment Rating - Not provided in the given content 2. Core View of the Report - The energy and chemical sector is divided into energy, alcohols, polyolefins, rubber, polyesters, alkalis, and others. For each sector, option strategies and suggestions are provided for selected varieties. Each option variety's report includes analysis of the underlying asset's market, research on option factors, and option strategy recommendations [8]. 3. Summary by Relevant Contents 3.1 Futures Market Overview - The report presents the latest prices, price changes, price change percentages, trading volumes, volume changes, open interest, and open interest changes of various energy and chemical futures contracts, including crude oil, liquefied petroleum gas (LPG), methanol, ethylene glycol, etc. For example, the latest price of crude oil (SC2601) is 455, with a price change of -3 and a change percentage of -0.61% [3]. 3.2 Option Factors - Volume and Open Interest PCR - The report provides volume and open interest PCR data for different option varieties. The open interest PCR = put option open interest / call option open interest, which describes the strength of the option underlying asset's market; the volume PCR = put option trading volume / call option trading volume, which indicates whether the underlying asset's market is at a turning point [4]. 3.3 Option Factors - Pressure and Support Levels - The pressure and support levels of each option variety are given, along with the corresponding strike prices, pressure point offsets, and support point offsets. For instance, the pressure point of crude oil (SC2601) is 540 with an offset of -50, and the support point is 460 with an offset of 0 [5]. 3.4 Option Factors - Implied Volatility - The report includes data on the at-the-money implied volatility, weighted implied volatility, weighted implied volatility changes, annual average implied volatility, call option implied volatility, put option implied volatility, historical 20-day volatility, and the difference between implied and historical volatility for each option variety [6]. 3.5 Strategy and Suggestions 3.5.1 Energy Options - **Crude Oil**: The fundamental situation shows that U.S. refinery demand has stabilized and rebounded, shale oil production has slightly increased, OPEC exports have increased, and European refinery demand is about to enter the peak season. The market has shown a complex price trend since August. Option factors indicate that the implied volatility is above the average, the open interest PCR is below 0.80, and the pressure and support levels are 540 and 460 respectively. Strategies include constructing a short call + put option combination for volatility, and a long collar strategy for spot hedging [7]. - **LPG**: The cost of crude oil is affected by supply and geopolitical issues. The LPG market has shown an oversold rebound and slight consolidation since August. Option factors show that the implied volatility has dropped to below the average, the open interest PCR is around 0.80, and the pressure and support levels are 4400 and 4200 respectively. Strategies include constructing a neutral short call + put option combination for volatility, and a long collar strategy for spot hedging [9]. 3.5.2 Alcohol Options - **Methanol**: Port and enterprise inventories are at high levels and difficult to reduce significantly in the short term. The market has been weak since August. Option factors indicate that the implied volatility is around the historical average, the open interest PCR is below 0.80, and the pressure and support levels are 2500 and 2000 respectively. Strategies include constructing a bear spread with put options for direction, a short call + put option combination for volatility, and a long collar strategy for spot hedging [9]. - **Ethylene Glycol**: Port and downstream inventories are high, and domestic production and imports are expected to keep the port inventory in an accumulation cycle. The market has been weak. Option factors show that the implied volatility is below the average, the open interest PCR is around 0.70, and the pressure and support levels are 4500 and 4050 respectively. Strategies include constructing a bear spread with put options for direction, a short volatility strategy for volatility, and a long collar strategy for spot hedging [10]. 3.5.3 Polyolefin Options - **Polypropylene**: PE and PP inventories show different trends. The market has been weak. Option factors indicate that the implied volatility has dropped to around the average, the open interest PCR is around 0.70, and the pressure and support levels are 7000 and 6300 respectively. Strategies include constructing a bear spread with put options for direction, and a long collar strategy for spot hedging [10]. 3.5.4 Rubber Options - **Rubber**: Exchange rubber warehouse receipts are at a ten-year low, and there is an expectation of inventory accumulation. The market has been in a weak consolidation. Option factors show that the implied volatility has dropped to below the average after a sharp rise, the open interest PCR is below 0.60, and the pressure and support levels are 16000 and 14500 respectively. Strategies include constructing a short call + put option combination for volatility [11]. 3.5.5 Polyester Options - **PTA**: The overall social inventory of PTA is increasing, and new installations are expected to continue to increase inventory. The market has shown a rebound with pressure. Option factors indicate that the implied volatility is above the average, the open interest PCR is around 0.70, and the pressure and support levels are 4700 and 4300 respectively. Strategies include constructing a neutral short call + put option combination for volatility [11]. 3.5.6 Alkali Options - **Caustic Soda**: The capacity utilization rate of caustic soda enterprises has increased. The market has been weak. Option factors show that the implied volatility is at a relatively high level, the open interest PCR is below 0.80, and the pressure and support levels are 3000 and 2000 respectively. Strategies include constructing a bear spread for direction, and a long collar strategy for spot hedging [12]. - **Soda Ash**: The factory inventory of soda ash has increased. The market has been in a low-level weak consolidation. Option factors indicate that the implied volatility is at a relatively high historical level, the open interest PCR is below 0.60, and the pressure and support levels are 1860 and 1100 respectively. Strategies include constructing a bear spread for direction, a short volatility combination for volatility, and a long collar strategy for spot hedging [12]. 3.5.7 Other Options - **Urea**: Enterprise inventory is at a high level, and port inventory is decreasing. The market has shown a low-level rebound. Option factors show that the implied volatility is around the historical average, the open interest PCR is below 0.60, and the pressure and support levels are 1800 and 1600 respectively. Strategies include constructing a neutral short call + put option combination for volatility, and a long collar strategy for spot hedging [13].

波动率数据日报 隐含波动率分位数排名 历史波动率分位数排名 0. 89 494 0.63 300 级 指 0.64 45 0.62 PTA 0.53 300 版 指 0.49 五米 0.51 50ETF 0.47 50ETE 0.42 PTA 0.45 天峻 0.30 铁矿石 0.15 45 0.23 天殿 0.12 a 88 0.20 7 14 011 铁,4,6 o Ta EX 0.01 台新 0.18 神花 0.01 PVC 白等 0.00 0.12 PVC 神花 0.03 0 0.3 0.6 0.1 0.2 0.4 05 0.7 0.8 0 a 0.1 0.3 0.6 0.7 0.8 1 0 0.2 0.4 0.5 0 a 1 永安期货期权总部 更新时间: 2025/11/12 、隐含波动率指数、历史波动率及其价差走势图 1、金融期权隐含波动率指数反映截止上一交易日的30日隐波走势,商品期权隐含波动 率指数通过主力月平值期权上下两档隐波加权所得,反映主力合约的隐波变化趋势。2 隐波指数与历史波动率的差值,差值越大反映隐波相对历史波动率越高,差值越小代 表隐波相对历史波动率越低。 70 -300股指 I ...

Report Overview - The report focuses on energy and chemical options, covering various sectors such as energy, alcohols, polyolefins, rubber, polyesters, alkalis, etc. It provides an analysis of the underlying market, option factors, and offers option strategies and suggestions for each selected option variety [8]. 1. Market Overview of Underlying Futures 1.1 Price and Volume Changes - The report presents the latest prices, price changes, price change percentages, trading volumes, volume changes, open interests, and open interest changes of multiple energy and chemical futures contracts. For example, the latest price of crude oil (SC2601) is 462, with a price increase of 2 and a price change percentage of 0.43%. Its trading volume is 2.93 million lots, an increase of 0.34 million lots, and the open interest is 2.55 million lots, an increase of 0.16 million lots [3]. 2. Option Factors Analysis 2.1 Volume and Open Interest PCR - The volume and open interest PCR of various option varieties are analyzed. For instance, the volume PCR of crude oil options is 1.00, with a change of 0.15, and the open interest PCR is 0.66, with a change of 0.01. These indicators are used to describe the strength of the option underlying market and the turning point of the underlying market [4]. 2.2 Pressure and Support Levels - The pressure and support levels of option underlying assets are determined based on the strike prices of the maximum open interest of call and put options. For example, the pressure level of crude oil is 500, and the support level is 450 [5]. 2.3 Implied Volatility - The implied volatility of options is analyzed, including at - the - money implied volatility, weighted implied volatility, and its changes, annual average implied volatility, call and put implied volatility, historical volatility, and the difference between implied and historical volatility. For example, the at - the - money implied volatility of crude oil options is 24.1, the weighted implied volatility is 28.90, with a change of 0.91 [6]. 3. Option Strategies and Suggestions for Different Varieties 3.1 Crude Oil Options - **Underlying Market Analysis**: The demand of US refineries has stabilized and rebounded. Shale oil production has slightly increased, and OPEC exports have increased. The European refined oil inventory is in a low - level destocking state, and the crude oil inventory has increased. The crude oil market showed a short - term weak and volatile trend in August, continued to be weak and bearish in September and then gradually rebounded, fell sharply in October and then stopped falling and rebounded, and has shown a weak and bearish sharp decline since November [7]. - **Option Factor Research**: The implied volatility of crude oil options has decreased to near the average. The open interest PCR is below 0.80, indicating a weak market. The pressure level is 500, and the support level is 450 [7]. - **Option Strategy Suggestions**: Directional strategy: None. Volatility strategy: Construct a short - biased call + put option combination strategy to obtain option time value and directional returns, and dynamically adjust the position to keep the delta of the position short. Spot long - hedging strategy: Construct a long collar strategy, holding spot long + buying put options + selling out - of - the - money call options [7]. 3.2 Other Option Varieties - Similar analyses and strategy suggestions are provided for other option varieties such as liquefied petroleum gas, methanol, ethylene glycol, etc., including underlying market analysis, option factor research, and option strategy suggestions [9][10][11]. 4. Charts - The report includes a series of charts for different option varieties, such as price charts, volume and open interest charts, PCR charts, implied volatility charts, historical volatility cone charts, and pressure and support level charts, to visually present the market conditions and option factors of each option variety [14][36][54].

1. Report Industry Investment Rating - No information provided in the content 2. Core Viewpoints of the Report - In the past week, the trading volume of commodity options increased slightly, with only the trading volume of the precious metals sector decreasing. Most varieties are in a volatility - reduction cycle, and it is advisable to move short - option positions to far - month contracts in advance to avoid end - of - contract risks [4]. - The options of the black sector showed increased volatility and trading volume. Affected by the decline in iron ore futures prices, the implied volatility of black options has risen. The previous policy - driven boost has basically been realized, and the market trading logic has returned to fundamentals. There is a lack of new macro - drivers, and the upward momentum of prices has been weakened. The implied volatility still has room to rise, and it is advisable to buy a bearish put spread portfolio to hedge against the downward market [4]. 3. Summary According to the Directory 3.1 Market Overview - The trading volume of commodity options increased slightly last week, with the precious metals sector being the only one with a decline in trading volume. Energy and chemical products such as short - fiber, PTA, methanol, glass, crude oil, caustic soda, soda ash, and bottle chips are about to expire on Wednesday. Most varieties are in a volatility - reduction cycle [4]. - The options of the black sector showed increased volatility and trading volume. The implied volatility of black options has risen due to the decline in iron ore futures prices. The previous policy - driven boost has basically been realized, and the market trading logic has returned to fundamentals [4]. 3.2 Market Data 3.2.1 Market Overview - The table shows the quantitative data of commodity options, including the flat - value volatility, 60 - day quantile, Skew, and 60 - day quantile of various varieties such as corn, soybean meal, and crude oil [12]. 3.2.2 - 3.2.54 Option Data of Each Variety - For each variety (such as corn, soybean meal, etc.), the data includes the closing price, trading volume, open interest, trading volume PCR, open interest PCR, flat - value volatility, HV - 10 days, HV - 20 days, and Skew of the main contract, secondary - main contract, and all contracts [13][14][15] etc.

Group 1: Introduction to Volatility Indexes - The financial options implied volatility index reflects the 30 - day implied volatility (IV) trend as of the previous trading day. The commodity options implied volatility index is obtained by weighting the IV of the two - strike options around the at - the - money option of the front - month contract, reflecting the IV change trend of the front - month contract [3] - The difference between the IV index and historical volatility (HV) indicates the relative level of IV to HV. A larger difference means higher IV relative to HV, and a smaller difference means lower IV relative to HV [3] Group 2: Volatility Data Graphs - There are graphs showing the IV, HV, and IV - HV differences for various financial and commodity options, including 300 Index, 50ETF, 1000 Index, 500ETF, and many commodity options such as silver, gold, sugar, cotton, etc. [4] Group 3: Quantile Rankings of Volatility - Implied volatility quantiles represent the current level of a variety's IV in history. A high quantile means the current IV is high, and a low quantile means the IV is low. Volatility spread is related to the IV index and historical volatility [5] - There are rankings of implied volatility quantiles and historical volatility quantiles for different varieties, such as 300 Index with quantiles of 0.89 and 0.74, 300 Index with 0.62, etc. [5][6]

1. Report Industry Investment Rating - Not provided in the document 2. Core View of the Report - The energy and chemical sector is divided into energy, alcohols, polyolefins, rubber, polyesters, alkalis, and others. For each sector, options strategies and recommendations are provided for selected varieties. Options strategy reports are compiled based on the analysis of the underlying market, option factor research, and option strategy recommendations for each option variety. Strategies mainly involve constructing option combination strategies focused on sellers, as well as spot hedging or covered strategies to enhance returns [8]. 3. Summary by Relevant Catalogs 3.1 Futures Market Overview - The latest prices, price changes, price change percentages, trading volumes, volume changes, open interests, and open interest changes of various energy and chemical option underlying futures contracts are presented. For example, the latest price of crude oil (SC2512) is 464, with a price increase of 4 and a price change percentage of 0.91%, trading volume of 8.02 million lots, volume change of -2.85 million lots, open interest of 2.96 million lots, and open interest change of -0.19 million lots [3]. 3.2 Option Factors - Volume and Open Interest PCR - Volume and open interest PCR data for various energy and chemical options are provided. Volume PCR is used to describe whether the underlying market has a turning point, and open interest PCR is used to describe the strength of the option underlying market. For example, the volume PCR of crude oil options is 0.90, with a change of -0.03, and the open interest PCR is 0.66, with a change of -0.03 [4]. 3.3 Option Factors - Pressure and Support Levels - Pressure and support levels for various energy and chemical option underlying contracts are analyzed from the perspective of the strike prices with the largest open interest of call and put options. For example, the pressure level of crude oil (SC2512) is 500, and the support level is 440 [5]. 3.4 Option Factors - Implied Volatility - Implied volatility data for various energy and chemical options are presented, including at-the-money implied volatility, weighted implied volatility, weighted implied volatility changes, annual average implied volatility, call implied volatility, put implied volatility, historical 20 - day volatility, and the difference between implied and historical volatility. For example, the at-the-money implied volatility of crude oil options is 27.935%, the weighted implied volatility is 29.69%, with a change of -0.19% [6]. 3.5 Strategy and Recommendations 3.5.1 Energy Options - Crude Oil - Fundamental analysis: US refinery demand has stabilized and rebounded. During the recent oil price decline, shale oil production did not significantly decrease. OPEC exports have increased, but most are absorbed by China, so there is no obvious visible inventory in the market. In Europe, the overall refined oil inventory is in a low - level destocking state, and the crude oil inventory has increased, but refinery demand is about to enter the peak season, and the diesel crack spread remains high [7]. - Market analysis: Since July, crude oil prices have gradually weakened and then consolidated in a range. In August, prices first rose and then fell, showing short - term weak fluctuations. In September, the market continued to be weak and bearish before gradually rebounding. In October, prices fell sharply and then stopped falling and rebounded [7]. - Option factor research: The implied volatility of crude oil options has declined to near the average level. The open interest PCR of options is below 0.80, indicating that crude oil has been in a weak market recently. From the perspective of options, the pressure level of crude oil is 500, and the support level is 450 [7]. - Option strategy recommendations: Directional strategy: None. Volatility strategy: Construct a short - neutral call + put option combination strategy to obtain option time value and directional returns, and dynamically adjust the position to keep the position delta neutral. Spot long - hedging strategy: Construct a long collar strategy, holding a spot long position + buying a put option + selling an out - of - the - money call option [7]. 3.5.2 Energy Options - Liquefied Petroleum Gas (LPG) - Fundamental analysis: The cost - end crude oil is under pressure from oversupply on one hand and geopolitical issues on the other. Last week, the crude oil price fluctuated around the $65 mark, and OPEC maintained its production increase. US propane inventories continue to accumulate, and the inventory is at a historical high, waiting for an inventory inflection point [9]. - Market analysis: Since August, LPG prices have accelerated their decline, then rebounded and rose, but the upward movement was blocked and then declined. In September, prices first rose and then fell rapidly. In October, prices were first weak and then strong, gradually rebounding and rising, followed by slight fluctuations, showing an oversold rebound market with resistance above [9]. - Option factor research: The implied volatility of LPG options has significantly declined to near the lower - than - average level. The open interest PCR of LPG options is around 0.80, indicating that LPG has been in a weak market recently. From the perspective of options, the pressure level of LPG is 4500, and the support level is 4000 [9]. - Option strategy recommendations: Directional strategy: None. Volatility strategy: Construct a short - neutral call + put option combination strategy to obtain option time value and directional returns, and dynamically adjust the position to keep the position delta neutral. Spot long - hedging strategy: Construct a long collar strategy, holding a spot long position + buying a put option + selling an out - of - the - money call option [9]. 3.5.3 Alcohol Options - Methanol - Fundamental analysis: The port inventory of methanol is 150.65 million tons, with a month - on - month decrease of 0.57 million tons, remaining in a high - level shock state and difficult to effectively destock. The enterprise inventory is 37.61 million tons, with a month - on - month increase of 1.57 million tons, and the year - on - year level is low. The enterprise's pending orders are 21.56 million tons, with a month - on - month decrease of 0.01 million tons [9]. - Market analysis: In July, methanol prices rose and then fell, continuously declining and weakening, followed by significant fluctuations. Since August, prices have gradually weakened and trended downward. In September, prices consolidated at a low level and then rebounded. Since October, the market has continued to be weak and bearish, showing a weak market trend with resistance above [9]. - Option factor research: The implied volatility of methanol options fluctuates around the historical average level. The open interest PCR of methanol options is below 0.80, indicating that methanol has been in a weak and fluctuating market recently. From the perspective of options, the pressure level of methanol is 2300, and the support level is 2200 [9]. - Option strategy recommendations: Directional strategy: Construct a bear spread strategy of put options to obtain directional returns. Volatility strategy: Construct a short - bearish call + put option combination strategy to obtain option time value, and dynamically adjust the position to keep the position delta bearish. Spot long - hedging strategy: Construct a long collar strategy, holding a spot long position + buying a put option + selling an out - of - the - money call option. When the market rebounds to the high strike price, close the position in combination with spot sales [9]. 3.5.4 Alcohol Options - Ethylene Glycol - Fundamental analysis: The port inventory of ethylene glycol is 52.3 million tons, with a month - on - month destocking of 5.6 million tons; the downstream factory inventory days are 13.4 days, with a month - on - month decrease of 0.1 days. In the short term, the arrival volume was high last week, and the departure volume was moderately low. The port inventory is expected to accumulate. The domestic production load is at a high level, and the overseas arrival volume is increasing, so ethylene glycol has entered an inventory accumulation period [10]. - Market analysis: In July, ethylene glycol prices were in a low - level weak consolidation and gradually rose, then fell rapidly. In August, prices continued to show slight weak consolidation. Since September, the market has continued to be weak and bearish, showing a weak market trend with resistance above [10]. - Option factor research: The implied volatility of ethylene glycol options fluctuates around the lower - than - average level. The open interest PCR of options is around 0.70, indicating that the bearish force of ethylene glycol has been relatively strong recently. From the perspective of options, the pressure level of ethylene glycol is 4500, and the support level is 4050 [10]. - Option strategy recommendations: Directional strategy: Construct a bear spread strategy of put options to obtain directional returns. Volatility strategy: Construct a short - volatility strategy to obtain time value returns. Spot long - hedging strategy: Hold a spot long position + buy a put option + sell an out - of - the - money call option [10]. 3.5.5 Polyolefin Options - Polypropylene - Fundamental analysis: The inventory of PE production enterprises is 51.46 million tons, with a month - on - month destocking of - 2.81%, and a year - on - year inventory increase of 2.02%; the inventory of PE traders is 5.00 million tons, with a month - on - month destocking of - 0.70%. The inventory of PP production enterprises is 63.85 million tons, with a month - on - month destocking of - 5.92%, and a year - on - year inventory increase of 12.69%; the inventory of PP traders is 22.00 million tons, with a month - on - month destocking of - 7.80%; the port inventory of PP is 6.68 million tons, with a month - on - month destocking of - 1.62%. The overall inventory pressure of PP is higher than that of PE [10]. - Market analysis: Since July, the decline of polypropylene prices has narrowed, gradually stabilized, and slightly fluctuated upwards, then fell rapidly. In August, prices maintained slight weak fluctuations. Since September, the market has continued to be weak and bearish. In October, prices fell rapidly and then fluctuated at a low level, showing a weak market trend with bearish pressure above [10]. - Option factor research: The implied volatility of polypropylene options has declined to near the average level. The open interest PCR of options is around 0.70, indicating that polypropylene has been weak recently. From the perspective of options, the pressure level of polypropylene is 7000, and the support level is 6300 [10]. - Option strategy recommendations: Directional strategy: None. Volatility strategy: None. Spot long - hedging strategy: Hold a spot long position + buy an at - the - money put option + sell an out - of - the - money call option [10]. 3.5.6 Rubber Options - Rubber - Fundamental analysis: The social inventory of natural rubber in China is 103.89 million tons, with a month - on - month decrease of 1.1 million tons, a decline of 1%. The total inventory of natural rubber in bonded and general trade in Qingdao is 43.22 million tons, with a month - on - month decrease of 0.53 million tons, a decline of 1.2%. The bonded area inventory is 6.87 million tons, a decline of 1.29%; the general trade inventory is 36.35 million tons, a decline of 1.18% [11]. - Market analysis: Since July, rubber prices have continued to rise in the short term and then reached a peak and fell back. In August, prices gradually recovered and rose, then fluctuated in a range. Since September, the market has continued to be weak and bearish. In October, prices continued to be weak and fluctuated at a low level, showing a weak consolidation market trend with support below and resistance above [11]. - Option factor research: The implied volatility of rubber options has rapidly increased and then declined to near the lower - than - average level. The open interest PCR of rubber options is below 0.60. From the perspective of options, the pressure level of rubber has significantly moved down to 17000, and the support level is 14000 [11]. - Option strategy recommendations: Directional strategy: None. Volatility strategy: Construct a short - bearish call + put option combination strategy to obtain option time value and directional returns, and dynamically adjust the position to keep the position delta bearish. Spot hedging strategy: None [11]. 3.5.7 Polyester Options - PTA - Fundamental analysis: The operating load of PTA is 78%, with a month - on - month decrease of 0.8%. In terms of equipment, Yisheng Dalian and Weilian Chemical slightly reduced their loads, Zhongtai is restarting, and the new plant of Shanshan Energy has been put into production. The expected maintenance volume of PTA in November will increase significantly, and the overall load is under great pressure under low processing fees [11]. - Market analysis: In August, PTA prices fell back, then slightly consolidated, and then rebounded rapidly, but the upward movement was blocked and then declined. Since September, the market has continued to be weak and bearish. In October, prices first fell and then rose, followed by slight fluctuations, showing a weak and bearish market trend with resistance above [11]. - Option factor research: The implied volatility of PTA options fluctuates at a relatively high level compared to the average. The open interest PCR of PTA options is around 0.70, indicating that PTA has been in a fluctuating market recently. From the perspective of options, the pressure level of PTA is 4600, and the support level is 4300 [11]. - Option strategy recommendations: Directional strategy: None. Volatility strategy: Construct a short - bearish call + put option combination strategy to obtain option time value, and dynamically adjust the position to keep the position delta bearish. Spot hedging strategy: None [11]. 3.5.8 Energy and Chemical Options - Caustic Soda - Fundamental analysis: The average utilization rate of the production capacity of Chinese caustic soda sample enterprises with a capacity of 200,000 tons and above is 84.3%, a month - on - month increase of 3.5%. By region, the production loads in the northwest, north, east, northeast, and south have all increased [12]. - Market analysis: In July, caustic soda prices first rose and then fell. In August, prices fell rapidly and then gradually rebounded, showing short - term bullish upward movement and then high - level fluctuations. Since September, prices have continuously closed with negative candles and gradually weakened. In October, prices fell rapidly, showing a weak and bearish market trend with resistance above recently [12]. - Option factor research: The implied volatility of caustic soda options fluctuates at a relatively high level. The open interest PCR of caustic soda options is below 0.8, indicating that caustic soda has been in a weak and fluctuating market recently. From the perspective of options, the pressure level of caustic soda is 2600, and the support level is 2240 [12]. - Option strategy recommendations: Directional strategy: Construct a bear spread strategy to obtain directional returns. Volatility strategy: None. Spot collar hedging strategy: Hold a spot long position + buy a put option + sell an out - of - the - money call option [12]. 3.5.9 Energy and Chemical Options - Soda Ash - Fundamental analysis: As of October 31, 2025, the in - plant inventory of soda ash is 170.2 million tons, with a month - on - month decrease of 0.01 million tons; the inventory available days are 14.11 days, remaining unchanged month - on - month. The in - plant inventory of heavy soda ash is 88.64 yuan/ton, with a month - on - month decrease of 4.81 yuan/ton; the in - plant inventory of light soda ash is 81.56 yuan/ton, with a month - on - month increase of 4.80 yuan/ton [12]. - Market analysis: Since August, soda ash prices have continued to show weak consolidation. In September, prices fluctuated slightly at a low level and were weak. In October, the market continued to be weak, recently showing a low - level weak fluctuating market trend with support below [12]. - Option factor research: The implied volatility of soda ash options fluctuates at a relatively high historical level. The open interest PCR of soda ash options is below 0.60, indicating strong bearish pressure. From the perspective of options, the pressure level of soda ash is 1300, and the support level is 1100 [12]. - Option strategy recommendations: Directional strategy: Construct a bear spread strategy to obtain directional returns. Volatility strategy: Construct a short - volatility combination strategy to obtain volatility returns. Spot long - hedging strategy: Construct a long collar strategy, holding a spot long position + buying a put option + selling an out - of - the - money call option [12]. 3.5.10 Energy and Chemical Options - Urea - Fundamental analysis: The enterprise inventory of urea is 155.43 million tons, with a month - on - month decrease of 7.59 million tons. Some reserve demands have followed up, and the enterprise inventory has decreased from a high level. The port inventory is 11 million tons, with a month - on - month decrease of 10 million tons, and ports in many places have loaded and cleared the inventory [13]. - Market analysis: In July, urea prices fluctuated widely in a large range under the bearish pressure line and then rose rapidly. In August, prices continued to fluctuate widely

1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - The energy and chemical sector is mainly divided into energy, alcohols, polyolefins, rubber, polyesters, alkalis, and others. Strategies focus on constructing option portfolios mainly as sellers and spot hedging or covered strategies to enhance returns [3][9] 3. Summary by Relevant Catalogs 3.1 Futures Market Overview - Various energy and chemical futures contracts show different price movements, trading volumes, and open interest changes. For example, the latest price of crude oil (SC2512) is 465, down 4 with a decline of 0.75%, and its trading volume is 10.93 million lots with a decrease of 5.34 million lots [4] 3.2 Option Factors - Volume and Open Interest PCR - The PCR indicators of different option varieties reflect the strength of the option underlying market and the turning point of the underlying market. For instance, the open interest PCR of crude oil options is 0.82, an increase of 0.08 [5] 3.3 Option Factors - Pressure and Support Levels - From the perspective of the strike prices with the largest open interest of call and put options, the pressure and support levels of different option underlying are identified. For example, the pressure level of crude oil is 500 and the support level is 450 [6] 3.4 Option Factors - Implied Volatility - The implied volatility of different option varieties shows different levels and changes. For example, the weighted implied volatility of crude oil options is 32.00%, an increase of 0.33% [7] 3.5 Option Strategies and Recommendations 3.5.1 Energy Options - Crude Oil - Fundamental analysis shows that US refinery demand has stabilized and rebounded, and OPEC exports have increased. The option implied volatility has declined to near the average, and the open interest PCR indicates a weak market. Strategies include constructing a short - neutral call + put option combination strategy and a long collar strategy for spot hedging [8] 3.5.2 Energy Options - Liquefied Petroleum Gas (LPG) - The US market faces pressure from high production and inventory, and the Middle East exports are relatively stable. The option implied volatility has dropped significantly to below the average, and the open interest PCR indicates a weak market. Similar strategies to crude oil are recommended [10] 3.5.3 Alcohol Options - Methanol - Port and enterprise inventories show certain trends. The option implied volatility fluctuates around the historical average, and the open interest PCR indicates a weak and oscillating market. Strategies involve constructing a short - bearish call + put option combination strategy and a long collar strategy for spot hedging [10] 3.5.4 Alcohol Options - Ethylene Glycol - The load and inventory of ethylene glycol show specific changes. The option implied volatility fluctuates below the average, and the open interest PCR indicates strong bearish power. Strategies include constructing a bearish spread combination strategy of put options and a short - volatility strategy [11] 3.5.5 Polyolefin Options - Polypropylene - The inventory of polypropylene and polyethylene shows different trends. The option implied volatility has declined to near the average, and the open interest PCR indicates a weak market. A long collar strategy for spot hedging is recommended [11] 3.5.6 Rubber Options - The rubber market has a certain trading atmosphere, and the option implied volatility has decreased to below the average after a sharp increase. The open interest PCR is below 0.60. A short - bearish call + put option combination strategy is recommended [12] 3.5.7 Polyester Options - PTA - The PTA load and maintenance situation show specific characteristics. The option implied volatility fluctuates at a relatively high level, and the open interest PCR indicates an oscillating market. A short - bearish call + put option combination strategy is recommended [12] 3.5.8 Alkali Options - Caustic Soda - The caustic soda market has certain supply and demand characteristics. The option implied volatility is at a high level, and the open interest PCR indicates a weak and oscillating market. A bearish spread combination strategy and a long collar strategy for spot hedging are recommended [13] 3.5.9 Alkali Options - Soda Ash - The inventory of soda ash shows specific changes. The option implied volatility is at a relatively high historical level, and the open interest PCR indicates strong bearish pressure. A short - volatility combination strategy and a long collar strategy for spot hedging are recommended [13] 3.5.10 Urea Options - The enterprise and port inventories of urea show specific trends. The option implied volatility fluctuates around the historical average, and the open interest PCR indicates strong bearish pressure. A short - neutral call + put option combination strategy and a spot hedging strategy are recommended [14]

1. Report Industry Investment Rating - Not provided in the document 2. Core Views of the Report - The energy - chemical sector is mainly divided into energy, alcohols, polyolefins, rubber, polyesters, alkalis, and others [9] - Options strategies and suggestions are provided for selected varieties in each sector [9] - The option strategy report for each option variety is compiled according to the underlying market analysis, option factor research, and option strategy suggestions [9] 3. Summary by Relevant Content 3.1 Underlying Futures Market Overview - Various option varieties' underlying contracts' latest prices, price changes, price change rates, trading volumes, volume changes, open interests, and open interest changes are presented, such as crude oil (SC2512) with a latest price of 470, a price increase of 16, and a price change rate of 3.48% [4] 3.2 Option Factors - Volume and Open Interest PCR - Volume PCR and open interest PCR for different option varieties are given, along with their changes, which are used to describe the strength of the option underlying market and the turning point of the underlying market [5] 3.3 Option Factors - Pressure and Support Levels - Pressure and support levels for different option varieties are analyzed from the perspective of the strike prices with the largest open interests of call and put options [6] 3.4 Option Factors - Implied Volatility - Implied volatility data for different option varieties are provided, including at - the - money implied volatility, weighted implied volatility, and its changes, etc. [7] 3.5 Option Strategies and Suggestions 3.5.1 Energy - related Options - **Crude Oil**: Fundamentals involve OPEC's production increase and US shale oil production. The market has shown different trends from July to October. Option factors indicate a decline in implied volatility, a weak market according to open interest PCR, and specific pressure and support levels. Strategies include a volatility strategy of selling a neutral call + put option combination and a spot long - hedging strategy of constructing a long collar [8] - **Liquefied Petroleum Gas (LPG)**: Fundamentals show a decrease in domestic LPG production in September. The market has experienced ups and downs. Option factors suggest a decline in implied volatility, a weak market, and specific pressure and support levels. Strategies include a volatility strategy of selling a neutral call + put option combination and a spot long - hedging strategy of constructing a long collar [10] 3.5.2 Alcohol - related Options - **Methanol**: Fundamentals involve port and enterprise inventories. The market has been weak. Option factors indicate that implied volatility fluctuates around the historical average, a weak - oscillating market, and specific pressure and support levels. Strategies include a volatility strategy of selling a bearish call + put option combination and a spot long - hedging strategy of constructing a long collar [10] - **Ethylene Glycol**: Fundamentals show inventory changes. The market has been weak. Option factors suggest that implied volatility fluctuates below the average, strong bearish power, and specific pressure and support levels. Strategies include a directional strategy of constructing a bearish spread of put options, a volatility strategy of shorting volatility, and a spot long - hedging strategy [11] 3.5.3 Polyolefin - related Options - **Polypropylene**: Fundamentals involve inventory changes. The market has been weak. Option factors indicate a decline in implied volatility to around the average, a weak market, and specific pressure and support levels. Strategies include a spot long - hedging strategy of holding a spot long position, buying an at - the - money put option, and selling an out - of - the - money call option [11] 3.5.4 Rubber - related Options - **Rubber**: Fundamentals show inventory changes. The market has been in a weak consolidation. Option factors suggest that implied volatility has decreased to around the average, a relatively strong bullish market according to open interest PCR, and specific pressure and support levels. Strategies include a volatility strategy of selling a bearish call + put option combination [12] 3.5.5 Polyester - related Options - **PTA**: Fundamentals show inventory accumulation. The market has been weak. Option factors indicate that implied volatility fluctuates at a relatively high level, an oscillating market, and specific pressure and support levels. Strategies include a volatility strategy of selling a bearish call + put option combination [12] 3.5.6 Alkali - related Options - **Caustic Soda**: Fundamentals show a decline in production capacity utilization. The market has been weak. Option factors suggest high - level volatility of implied volatility, a weak - oscillating market, and specific pressure and support levels. Strategies include a directional strategy of constructing a bearish spread and a spot collar - hedging strategy [13] - **Soda Ash**: Fundamentals show an increase in factory inventory. The market has been in a low - level weak oscillation. Option factors indicate that implied volatility fluctuates at a relatively high historical level, strong bearish pressure, and specific pressure and support levels. Strategies include a volatility strategy of shorting volatility and a spot long - hedging strategy of constructing a long collar [13] 3.5.7 Other Options - **Urea**: Fundamentals show an increase in enterprise and port inventories. The market has been in a low - level weak oscillation. Option factors suggest that implied volatility fluctuates around the historical average, strong bearish pressure, and specific pressure and support levels. Strategies include a directional strategy of constructing a bearish spread of put options, a volatility strategy of selling a bearish call + put option combination, and a spot long - hedging strategy [14] 3.6 Option Charts - Charts for various option varieties, such as crude oil, LPG, methanol, etc., are provided, including price trends, trading volume and open interest, open interest PCR, implied volatility, historical volatility cones, and pressure and support levels [15][36][54]

Group 1: Explanation of Volatility Indexes - Financial option implied volatility index reflects the 30 - day implied volatility trend as of the previous trading day, while the commodity option implied volatility index is weighted by the implied volatilities of the two - strike options above and below the at - the - money option of the main contract, showing the implied volatility change trend of the main contract [3] - The difference between the implied volatility index and historical volatility indicates the relative level of implied volatility to historical volatility. A larger difference means higher implied volatility relative to historical volatility, and a smaller difference means lower [3] Group 2: Volatility Index Graphs - There are graphs showing the implied volatility (IV), historical volatility (HV), and their differences (IV - HV) for various financial and commodity options, including 300 - stock index, 50ETF, 1000 - stock index, 500ETF, silver, gold, soybean meal, corn, sugar, cotton, methanol, rubber, iron ore, PTA, copper, crude oil, aluminum, PVC, rebar, zinc, urea, palm oil, etc [4] Group 3: Implied Volatility and Volatility Spread Quantiles - Implied volatility quantiles represent the current implied volatility level of a variety in history. A high quantile means the current implied volatility is high, and a low quantile means it is low [5] - The document provides the implied volatility quantile rankings for different options such as 50ETF (0.70), 300 - stock index (0.82 and 0.57), corn (0.41), PTA (0.37 and 0.41), etc [6]