Quadruple witching refers to when market index futures, market index options, stock options, and stock futures all expire on the same day.
股指期货，股指期权，单只股票期权和期货全部同一天到期的日子。
Quadruple witching refers to when market index futures, market index options, stock options, and stock futures all expire on the same day.
股指期货，股指期权，单只股票期权和期货全部同一天到期的日子。
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