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波动率数据日报-20250916
Yong An Qi Huo· 2025-09-16 09:19
Report Summary 1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints - Not provided in the content 3. Summary by Related Catalogs 3.1 Implied Volatility Index, Historical Volatility and Their Spread Charts - The financial option implied volatility index reflects the 30 - day implied volatility trend as of the previous trading day, and the commodity option implied volatility index is weighted by the implied volatilities of the two - strike prices above and below the at - the - money option of the main contract, reflecting the implied volatility change trend of the main contract [3] - The difference between the implied volatility index and historical volatility: a larger difference means the implied volatility is relatively higher than historical volatility, and a smaller difference means the opposite [3] 3.2 Implied Volatility Quantile and Volatility Spread Quantile Ranking Chart - The implied volatility quantile represents the current level of a variety's implied volatility in history. A high quantile means the current implied volatility is high, and a low quantile means it is low [5] - The volatility spread is the difference between the implied volatility index and historical volatility [5] - Specific implied volatility quantile rankings include 0.75 for 50ETF, 0.74 for 300 Index, 0.67 for PTA, etc. [5][6][8]
金属期权策略早报-20250916
Wu Kuang Qi Huo· 2025-09-16 03:10
Report Summary 1. Investment Rating The document does not provide an overall investment rating for the metal options industry. 2. Core Viewpoints - The metal market is divided into three sectors: non - ferrous metals, precious metals, and black metals. Different strategies are recommended for each sector based on their market conditions [2]. - For non - ferrous metals, a neutral volatility selling strategy is suitable for the weak - oscillating market; for black metals, a short - volatility combination strategy is appropriate for the high - volatility market; for precious metals, a spot hedging strategy is recommended due to the upward - breaking market [2]. 3. Summary by Category 3.1 Market Overview of Underlying Futures - The document presents the latest prices, price changes, trading volumes, and open interest changes of various metal futures contracts. For example, the price of copper (CU2510) is 81,380, up 550 (0.68%), with a trading volume of 6.89 million lots (down 2.27 million lots) and an open interest of 17.93 million lots (down 0.76 million lots) [3]. 3.2 Option Factors - Volume and Open Interest PCR - Volume PCR and open interest PCR are used to describe the strength of the option underlying market and the turning point of the market. For instance, the volume PCR of copper is 0.37 (up 0.08), and the open interest PCR is 0.73 (up 0.01) [4]. 3.3 Option Factors - Pressure and Support Levels - Pressure and support levels of each metal option are determined by the strike prices with the largest open interest of call and put options. For example, the pressure level of copper is 82,000, and the support level is 79,000 [5]. 3.4 Option Factors - Implied Volatility - Implied volatility data of various metal options are provided, including at - the - money implied volatility, weighted implied volatility, and its changes. For example, the at - the - money implied volatility of copper is 11.85%, and the weighted implied volatility is 18.06% (down 1.18%) [6]. 3.5 Strategies and Recommendations 3.5.1 Non - Ferrous Metals - **Copper**: Build a short - volatility seller option portfolio strategy and a spot long - hedging strategy. The underlying copper market shows a high - level consolidation with support [7]. - **Aluminum/Alumina**: Construct a bullish call spread strategy, a neutral short - call and short - put option combination strategy, and a spot collar strategy. The aluminum market is in a long - biased high - level oscillation [9]. - **Zinc/Lead**: Adopt a neutral short - call and short - put option combination strategy and a spot collar strategy. The zinc market shows an oscillating decline with pressure [9]. - **Nickel**: Use a short - biased short - call and short - put option combination strategy and a spot covered - call strategy. The nickel market is in a wide - range oscillation with short - side pressure [10]. - **Tin**: Implement a short - volatility strategy and a spot collar strategy. The tin market is in a high - level oscillation with pressure [10]. - **Lithium Carbonate**: Build a short - biased short - call and short - put option combination strategy and a spot long - hedging strategy. The lithium carbonate market shows a large - amplitude decline with pressure [11]. 3.5.2 Precious Metals - **Gold/Silver**: Construct a bullish call spread strategy, a long - biased short - volatility option seller combination strategy, and a spot hedging strategy. The gold market is in a short - term consolidation and then breaks upward [12]. 3.5.3 Black Metals - **Rebar**: Use a short - biased short - call and short - put option combination strategy and a spot covered - call strategy. The rebar market is in a weak consolidation with pressure [13]. - **Iron Ore**: Adopt a neutral short - call and short - put option combination strategy and a spot collar strategy. The iron ore market is in an oscillating rebound [13]. - **Ferroalloys**: Implement a short - volatility strategy. The manganese - silicon market is in a weak and bearish oscillation [14]. - **Industrial Silicon/Polysilicon**: Build a short - volatility short - call and short - put option combination strategy and a spot hedging strategy. The industrial silicon market is in a large - amplitude oscillation with pressure [14]. - **Glass**: Use a short - volatility short - call and short - put option combination strategy and a spot collar strategy. The glass market is in a weak market with pressure [15].
能源化工期权策略早报-20250916
Wu Kuang Qi Huo· 2025-09-16 03:10
Report Industry Investment Rating - Not provided in the content Core Viewpoints of the Report - The energy and chemical sector is mainly divided into energy, alcohols, polyolefins, rubber, polyesters, alkalis, and others. Strategies suggest constructing option combination strategies mainly as sellers and spot hedging or covered strategies to enhance returns [3][9] Summary by Relevant Catalogs 1. Futures Market Overview - Various energy and chemical option underlying futures contracts show different price changes, trading volumes, and open interest changes. For example, the latest price of crude oil SC2511 is 495, up 6 with a 1.31% increase; the latest price of liquefied petroleum gas PG2511 is 4,450, down 5 with a 0.11% decrease [4] 2. Option Factors - Volume and Open Interest PCR - Different option varieties have different volume and open interest PCR values and their changes, which are used to describe the strength of the option underlying market and the turning point of the underlying market. For example, the volume PCR of crude oil is 0.87, down 0.12; the open interest PCR is 1.12, up 0.03 [5] 3. Option Factors - Pressure and Support Levels - From the perspective of the exercise prices with the largest open interest of call and put options, the pressure and support levels of option underlying are analyzed. For example, the pressure level of crude oil is 570 and the support level is 480 [6] 4. Option Factors - Implied Volatility - Different option varieties have different implied volatility values, including at - the - money implied volatility, weighted implied volatility, and their changes, as well as the difference between implied and historical volatility. For example, the at - the - money implied volatility of crude oil is 29.4, and the weighted implied volatility is 32.14, up 0.09 [7] 5. Strategies and Recommendations for Different Option Varieties Energy - related Options - **Crude Oil**: Fundamentally, European ARA weekly data shows changes in gasoline, diesel, fuel oil, and naphtha inventories. The market is in a bearish trend with pressure above. Option strategies include constructing a short - biased call + put option combination strategy and a long collar strategy for spot hedging [8] - **Liquefied Petroleum Gas (LPG)**: Factory and port inventories show changes. The market is in an oversold rebound situation with pressure above. Option strategies include constructing a neutral - biased call + put option combination strategy and a long collar strategy for spot hedging [10] Alcohol - related Options - **Methanol**: The port has a high - inventory pattern, and the market is in a weak trend. Option strategies include constructing a bearish spread strategy of put options, a short - biased call + put option combination strategy, and a long collar strategy for spot hedging [10] - **Ethylene Glycol**: Terminal loads are stable, and the port is in a state of inventory accumulation. The market is in a weak bearish trend. Option strategies include constructing a bearish spread strategy of put options, a short - volatility strategy, and a long collar strategy for spot hedging [11] Polyolefin - related Options - **Polypropylene**: Production and trade inventories show changes, and the downstream start - up rate increases. The market is in a weak bearish trend. Option strategies include a long collar strategy for spot hedging [12] Rubber - related Options - **Rubber**: Social inventories of natural rubber decrease. The market is in a weak consolidation situation with support below and pressure above. Option strategies include constructing a neutral - biased call + put option combination strategy [13] Polyester - related Options - **PTA**: Downstream loads increase, and social inventories decrease. The market is in a weak bearish trend. Option strategies include constructing a short - biased call + put option combination strategy [14] Alkali - related Options - **Caustic Soda**: Factory inventories decrease. The market is in a downward consolidation trend with pressure above. Option strategies include a long collar strategy for spot hedging [15] - **Soda Ash**: Factory and delivery warehouse inventories show changes. The market is in a low - level weak consolidation situation with pressure above. Option strategies include constructing a short - volatility combination strategy and a long collar strategy for spot hedging [15] Urea Options - Inventories of urea enterprises increase slightly, and the market is in a low - level weak consolidation trend. Option strategies include constructing a short - biased call + put option combination strategy and a long collar strategy for spot hedging [16]
波动率数据日报-20250915
Yong An Qi Huo· 2025-09-15 07:53
Group 1: Volatility Index Explanation - Financial option implied volatility index reflects the 30 - day implied volatility (IV) trend as of the previous trading day, while the commodity option implied volatility index is weighted by the IV of the upper and lower two - strike options of the front - month at - the - money options, showing the IV change trend of the front - month contract [2] - The difference between the implied volatility 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: Volatility Data Chart - The chart shows the IV, HV, and IV - HV differences of various financial and commodity options, including 300 Index, 50ETF, 1000 Index, 500ETF, and many commodity options such as silver, soybean meal, corn, etc [3] Group 3: Implied Volatility Quantile and Volatility Spread Quantile - Implied volatility quantile represents 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 current IV is low. Volatility spread is the difference between the implied volatility index and historical volatility [4] - The implied volatility quantile rankings of different varieties are presented, such as 300 Index with a quantile of 0.63, 50ETF with 0.73, PTA with 0.22, etc [5]
农产品期权策略早报-20250915
Wu Kuang Qi Huo· 2025-09-15 02:53
1. Report Industry Investment Rating - Not provided in the content 2. Core Viewpoints of the Report - The overall trend of agricultural product options is mixed, with oilseeds and oils showing a weak and volatile trend, while some products like apples show a warming - up trend [2] - It is recommended to construct option combination strategies mainly based on sellers, as well as spot hedging or covered call strategies to enhance returns [2] 3. Summary by Related Catalogs 3.1 Market Overview of Underlying Futures - Different agricultural product options have different price changes, trading volumes, and open - interest changes. For example, the latest price of soybean No.1 (A2511) is 3,956, with no change and a trading volume of 11.44 million lots [3] 3.2 Option Factors - Volume and Open - Interest PCR - The volume and open - interest PCR of each option variety reflect different market trends. For example, the volume PCR of soybean No.1 is 0.54, with a change of - 0.02, and the open - interest PCR is 0.42, with a change of - 0.00 [4] 3.3 Option Factors - Pressure and Support Levels - From the perspective of option factors, each option variety has corresponding pressure and support levels. For example, the pressure level of soybean No.1 is 4,100, and the support level is 3,900 [5] 3.4 Option Factors - Implied Volatility - The implied volatility of each option variety shows different characteristics. For example, the weighted implied volatility of soybean No.1 is 12.08, with a change of - 0.13 [6] 3.5 Strategies and Recommendations 3.5.1 Oilseeds and Oils Options - **Soybean No.1 and No.2**: The fundamentals of US soybeans have a neutral - to - negative impact. For soybean No.1, it is recommended to construct a selling option combination strategy to obtain time value and use a long collar strategy for spot hedging [7] - **Soybean Meal and Rapeseed Meal**: For soybean meal, a bear spread strategy of put options can be constructed, and a selling option combination strategy with a short bias can be used. A long collar strategy is also recommended for spot hedging [9] - **Palm Oil, Soybean Oil, and Rapeseed Oil**: For palm oil, a selling option combination strategy with a long bias can be constructed, and a long collar strategy is used for spot hedging [10] - **Peanuts**: A bear spread strategy of put options can be constructed, and a long collar strategy is used for spot hedging [11] 3.5.2 Agricultural By - product Options - **Pigs**: A selling option combination strategy with a short bias can be constructed, and a covered call strategy is used for spot hedging [11] - **Eggs**: A bear spread strategy of put options can be constructed, and a selling option combination strategy with a short bias can be used [12] - **Apples**: A selling option combination strategy with a long bias can be constructed [12] - **Jujubes**: A short - biased wide - straddle option combination strategy can be constructed, and a covered call strategy is used for spot hedging [13] 3.5.3 Soft Commodity Options - **Sugar**: A selling option combination strategy with a short bias can be constructed, and a long collar strategy is used for spot hedging [13] - **Cotton**: A selling option combination strategy with a long bias can be constructed, and a covered call strategy is used for spot hedging [14] 3.5.4 Grain Options - **Corn and Starch**: A selling option combination strategy with a short bias can be constructed [14]
金属期权策略早报-20250915
Wu Kuang Qi Huo· 2025-09-15 02:52
1. Report Industry Investment Rating No relevant content provided. 2. Core Views of the Report - The metal sector is divided into non - ferrous metals, precious metals, and black metals. Different strategies are recommended for each sector and its selected varieties based on their market conditions and option factors [8]. - For non - ferrous metals, which are in a weak and volatile state, a seller's neutral volatility strategy is recommended. Black metals maintain a large - amplitude volatile market, suitable for building a short - volatility portfolio strategy. Precious metals show a bullish upward trend, and a spot hedging strategy is suggested [2]. 3. Summary by Related Catalogs 3.1 Futures Market Overview - The latest prices, price changes, trading volumes, and open interest changes of various metal futures are provided, including copper, aluminum, zinc, etc. For example, the latest price of copper (CU2510) is 80,810, with a price increase of 150 and a trading volume of 9.16 million lots [3]. 3.2 Option Factors - PCR - The PCR indicators (volume PCR and open interest PCR) of various metal options are presented. These indicators are used to describe the strength of option underlying market trends and potential turning points. For instance, the volume PCR of copper options is 0.30, with a change of - 0.08, and the open interest PCR is 0.72, with a change of 0.01 [4]. 3.3 Option Factors - Pressure and Support Levels - The pressure and support levels of various metal options are analyzed. For example, the pressure point of copper options is 82,000, and the support point is 78,000. These levels are determined by the strike prices with the maximum open interest of call and put options [5]. 3.4 Option Factors - Implied Volatility - The implied volatility data of various metal options are provided, including at - the - money implied volatility, weighted implied volatility, and the difference between implied and historical volatility. For example, the at - the - money implied volatility of copper options is 17.51%, and the weighted implied volatility is 19.24% [6]. 3.5 Strategy and Recommendations 3.5.1 Non - Ferrous Metals - **Copper Options**: Fundamentally, the inventory of the three major exchanges has increased by 12,000 tons. The market shows a high - level consolidation with support below. Option strategies include building a short - volatility seller's option portfolio and a spot hedging strategy [7]. - **Aluminum/Alumina Options**: Aluminum inventory has decreased, and the market shows a bullish upward trend. Strategies include a bullish call spread strategy, a short - neutral call + put option combination strategy, and a spot collar strategy [9]. - **Zinc/Pb Options**: Zinc inventory has increased, and the market shows a volatile decline. Strategies include a short - neutral call + put option combination strategy and a spot collar strategy [9]. - **Nickel Options**: Nickel inventory has increased, and the market shows a wide - range volatile pattern with upward pressure. Strategies include a short - bearish call + put option combination strategy and a spot covered call strategy [10]. - **Tin Options**: Tin supply is tight, and the market shows a short - term high - level volatile pattern with upward pressure. Strategies include a short - volatility strategy and a spot collar strategy [10]. - **Lithium Carbonate Options**: Lithium carbonate inventory has decreased, and the market shows a large - amplitude volatile and continuous decline. Strategies include a short - bearish call + put option combination strategy and a spot hedging strategy [11]. 3.5.2 Precious Metals - **Gold/Silver Options**: For gold, inflation data in the US is lower than expected, and the market shows a short - term consolidation and a strong upward breakthrough. Strategies include a bullish call spread strategy, a short - bullish volatility option seller's combination strategy, and a spot hedging strategy [12]. 3.5.3 Black Metals - **Rebar Options**: Rebar inventory has increased, and the market shows a weak consolidation with upward pressure. Strategies include a short - bearish call + put option combination strategy and a spot covered call strategy [13]. - **Iron Ore Options**: Iron ore inventory has increased, and the market shows a volatile rebound. Strategies include a short - neutral call + put option combination strategy and a spot collar strategy [13]. - **Ferroalloy Options**: Manganese silicon shows a weak and bearish market. Strategies include a short - volatility strategy [14]. - **Industrial Silicon/Polysilicon Options**: Industrial silicon production has increased, and the market shows a large - amplitude volatile pattern with upward pressure. Strategies include a short - volatility call + put option combination strategy and a spot hedging strategy [14]. - **Glass Options**: Glass inventory has decreased, and the market shows a weak market with upward pressure. Strategies include a short - volatility call + put option combination strategy and a spot collar strategy [15].
波动率与期权
Qi Huo Ri Bao Wang· 2025-09-15 00:44
Group 1 - The article emphasizes the importance of understanding volatility in options trading, highlighting that a precise grasp of volatility is key to improving trading success rates [1][2] - It distinguishes between price fluctuations and volatility itself, explaining that price fluctuations are actual market movements, while volatility measures the intensity of these movements [1][2] - The concept of volatility has evolved from traditional commodity trading, where price changes were the main focus, to a critical variable in options pricing models [2][3] Group 2 - Historical volatility is defined as the standard deviation of price changes over a specific period, often annualized for practical use, and serves as a reference for predicting future volatility [3][5] - Implied volatility, in contrast, reflects market participants' expectations of future price fluctuations and is derived from observed market prices, acting as a gauge of market sentiment [4][5] - The relationship between historical and implied volatility is significant, as changes in one can influence the other, indicating potential future price movements [5]
什么是期权的波动率策略?
Sou Hu Cai Jing· 2025-09-12 04:24
Group 1 - The core concept of options volatility strategy emphasizes the importance of analyzing volatility over the option price itself, as volatility is a critical indicator for investors when trading options [1] - Volatility can be categorized into implied volatility and historical volatility, with implied volatility reflecting market expectations of future price fluctuations [6][7] - The article outlines various volatility strategies, including long volatility strategies such as buying straddles and strangles, which are used when significant price movements are anticipated without a clear direction [3][4][6] Group 2 - A long straddle strategy involves purchasing both a call and a put option with the same strike price and expiration date, allowing for profit if the underlying asset's price moves significantly in either direction [3] - A long strangle strategy entails buying a call option with a higher strike price and a put option with a lower strike price, which is generally less expensive than a straddle and can yield high returns during significant price movements [4] - Directly purchasing volatility index futures, such as VIX futures, is another strategy employed when investors expect an increase in market volatility, allowing them to profit from rising volatility [4] Group 3 - The article also discusses short volatility strategies, where investors can profit from a decrease in volatility by selling options when volatility is expected to revert to its mean [7] - Historical volatility is calculated using past data, while implied volatility is derived from option pricing models, indicating market sentiment regarding future volatility [7] - The strategies discussed can be particularly effective during events that cause significant market fluctuations, such as geopolitical tensions or economic announcements [6][7]
波动率数据日报-20250912
Yong An Qi Huo· 2025-09-12 02:48
Group 1: Volatility Index Introduction - The implied volatility index of financial options reflects the 30 - day implied volatility trend as of the previous trading day. The implied volatility index of commodity options is obtained by weighting the implied volatility of the two - strike options above and below the at - the - money option of the main contract month, reflecting the implied volatility change trend of the main contract [3] - The difference between the implied volatility index and historical volatility: a larger difference indicates that the implied volatility is relatively higher than historical volatility, and a smaller difference means the opposite [3] Group 2: Implied Volatility Quantile Ranking - The historical volatility quantile ranking of 50ETF is 0.81 [7] - The historical volatility quantile ranking of 300 Index is 0.79 [5] Group 3: Implied Volatility and Historical Volatility Difference Graph Explanation - The implied volatility quantile represents the current level of the implied volatility of a variety in history. A high quantile means the current implied volatility is high, and a low quantile means it is low [8] - The volatility spread refers to the implied volatility index minus the historical volatility [8]
农产品期权策略早报-20250912
Wu Kuang Qi Huo· 2025-09-12 02:36
1. Report Industry Investment Rating - Not provided in the given content 2. Core Viewpoints of the Report - The agricultural product sector shows different trends: oilseeds and oils are weakly volatile, oils and agricultural by - products are in a volatile market, soft commodity sugar has a slight fluctuation, cotton is weakly consolidating, and grains such as corn and starch are in a weakly narrow - range consolidation. It is recommended to construct option portfolio strategies mainly as sellers, as well as spot hedging or covered strategies to enhance returns [2] 3. Summary by Relevant Catalogs 3.1 Futures Market Overview - Multiple agricultural product futures are presented with details on latest price, change, change rate, trading volume, volume change, open interest, and open interest change. For example, the latest price of soybean (A2511) is 3,957 with a 0.79% increase, and its trading volume is 10.36 million lots with a decrease of 4.26 million lots [3] 3.2 Option Factor - Volume and Open Interest PCR - Volume PCR and open interest PCR are calculated for various option varieties. For instance, the volume PCR of soybean (A2511) is 0.56 with a - 0.21 change, and the open interest PCR is 0.42 with a - 0.01 change. These factors are used to describe the strength of the option underlying market and the turning point of the underlying market [4] 3.3 Option Factor - Pressure and Support Levels - Pressure and support levels are determined for each option variety based on the strike prices with the largest open interest of call and put options. For example, the pressure level of soybean (A2511) is 4,100 and the support level is 3,900 [5] 3.4 Option Factor - Implied Volatility - Implied volatility data including at - the - money implied volatility, weighted implied volatility, and its change, annual average, call and put implied volatility, historical volatility, and the difference between implied and historical volatility are provided for different option varieties. For example, the at - the - money implied volatility of soybean (A2511) is 10.25%, and the weighted implied volatility is 12.21% with a - 0.42 change [6] 3.5 Strategy and Recommendations 3.5.1 Oilseeds and Oils Options - **Soybean (A2511)**: Fundamental analysis shows that the US soybean good - rate is increasing, and Brazilian soybean import - related indicators have changed. The market has a short - term consolidation pattern. Option factors indicate high - level historical volatility, a weak - volatile market, and specific pressure and support levels. Strategies include a neutral call + put option selling combination for time - value gain, and a long - collar strategy for spot hedging [7] - **Soybean Meal (M2511)**: With sufficient supply and increasing inventory, the market is under pressure. Option factors show above - average historical volatility, a weak - volatile market, and specific pressure and support levels. Strategies include a bear - spread strategy for directional gain, a short - biased call + put option selling combination, and a long - collar strategy for spot hedging [9] - **Palm Oil (P2511)**: Malaysian palm oil production and inventory data show changes, and the market is in a high - level volatile pattern. Option factors show decreasing volatility, a bullish - biased market, and specific pressure and support levels. Strategies include a bull - biased call + put option selling combination for time - value gain, and a long - collar strategy for spot hedging [10] - **Peanut (PK2511)**: In the traditional off - season, the market is in a weak - consolidation pattern. Option factors show low - level historical volatility, a weak - volatile market, and specific pressure and support levels. Strategies include a bear - spread strategy for directional gain, and a long - collar - like strategy for spot hedging [11] 3.5.2 Agricultural By - products Options - **Pig (LH2511)**: Piglet prices and profits are falling, and the supply is expected to increase. The market is in a weak - consolidation pattern. Option factors show increasing volatility, a weak market, and specific pressure and support levels. Strategies include a short - biased call + put option selling combination for time - value and directional gain, and a covered call strategy for spot [11] - **Egg (JD2510)**: High - supply and low - demand situation persists, and the market is in a weak - bearish pattern. Option factors show high - level volatility, a weak - volatile market, and specific pressure and support levels. Strategies include a bear - spread strategy for directional gain, a short - biased call + put option selling combination, and no spot - hedging strategy [12] - **Apple (AP2511)**: Inventory issues and new - fruit listing affect the market, which is in a warming - up pattern. Option factors show above - average historical volatility, a weak - volatile market, and specific pressure and support levels. Strategies include a bull - biased call + put option selling combination for time - value gain, and no spot - hedging strategy [12] - **Jujube (CJ2601)**: Inventory is slightly decreasing, and the market is in a short - term decline pattern. Option factors show increasing volatility, a weak market, and specific pressure and support levels. Strategies include a short - biased wide - straddle option selling combination for time - value gain, and a covered call strategy for spot [13] 3.5.3 Soft Commodity Options - **Sugar (SR2511)**: Brazilian sugar production data and global supply - demand forecasts change. The market is in a weak - bearish pattern. Option factors show low - level historical volatility, a range - bound market, and specific pressure and support levels. Strategies include a short - biased call + put option selling combination for time - value gain, and a long - collar strategy for spot hedging [13] - **Cotton (CF2511)**: Brazilian cotton production is expected to increase, and the market is in a short - term weak pattern. Option factors show decreasing volatility, increasing bullish power, and specific pressure and support levels. Strategies include a bull - biased call + put option selling combination for time - value gain, and a covered call strategy for spot [14] 3.5.4 Grain Options - **Corn (C2511)**: With new - season corn approaching and sufficient supply, the market is in a weak - rebound pattern. Option factors show low - level historical volatility, a weak market, and specific pressure and support levels. Strategies include a short - biased call + put option selling combination for time - value gain, and no spot - hedging strategy [14]