有章可循的交易技法

Core Insights - The article discusses the complexities and practical techniques of options trading, emphasizing the importance of understanding strike price intervals and expiration dates in the context of various options contracts [1]. Strike Price Intervals - The article outlines the varying strike price intervals for different options, highlighting that the intervals differ significantly across various underlying assets. For example, the strike price interval for the Shanghai Stock Exchange 50 ETF options is 0.25 yuan, while for crude oil options, it is 10 yuan [2][4]. - A table is provided that details the strike price intervals for options with underlying prices between 0 and 100 yuan, indicating specific intervals based on price ranges [4]. - Another table outlines the strike price intervals for options with underlying prices above 100 yuan, noting that most commodity options and index options follow a general rule where the interval is approximately 2% of the underlying price [5][6]. Expiration Dates - The article emphasizes the importance of expiration dates for options contracts, as forgetting these dates can lead to significant losses. It lists the expiration dates for various exchanges, such as the Shanghai and Shenzhen Stock Exchanges, which have expiration on the fourth Wednesday of the expiration month [8][9]. - Additional rules for expiration dates from other exchanges, including the China Financial Futures Exchange and the Zhengzhou Commodity Exchange, are also detailed, providing a comprehensive overview of the expiration schedule [9][10]. Time Value Decay - The article explains the concept of time value in options pricing, stating that the price of an options contract consists of intrinsic value and time value. It discusses how the time value decays as the expiration date approaches, with specific examples illustrating the decay rate using the Theta indicator from trading software [12][13].