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当碳酸锂再次遇上末日轮期权,会擦出怎样的火花?
对冲研投· 2025-08-07 12:06
Core Viewpoint - The article discusses the concept of "Doomsday Wheel" in options trading, focusing on the Gamma effect and the strategies for both buyers and sellers in the context of options expiration [6][7][10]. Group 1: Understanding "Doomsday Wheel" - "Doomsday Wheel" refers to the phenomenon where options can dramatically increase in value on expiration day, particularly for at-the-money options due to their high Gamma values [7][10]. - The Gamma effect leads to significant price fluctuations in options as they approach expiration, making them nonlinear derivatives [7][10]. Group 2: Buyer Strategies - Buyers can employ a laddered partial profit-taking strategy, where positions are liquidated in stages (e.g., 50%, 30%, 20%) upon reaching preset profit targets [3][12]. - Another strategy is rolling positions, where as options approach the money, they are closed and new positions are opened at higher strike prices [4][14]. - A spread strategy can also be used, where part of the position is closed and higher strike call options are sold to hedge against potential downturns [5][17]. Group 3: Seller Risk Management - Sellers should focus on timely liquidation of positions once a significant portion of premium has been realized [5][19]. - Position rolling to next month’s deeper out-of-the-money options can help manage risk [5][25]. - Tail risk protection can be achieved by using profits to buy out-of-the-money options to hedge against extreme market movements [5][25]. Group 4: Market Context and Implications - The article highlights the recent focus on carbon lithium options, particularly in the context of the upcoming September expiration and the significant price movements observed [6][20]. - The December 2023 carbon lithium options expiration is noted for its dramatic price increases, emphasizing the importance of risk management for sellers during such volatile periods [21][24].