The designation of an option writer for fulfillment of his obligation to sell the underlying futures contract (call options writer) or buy the underlying futures contract (put option writer) upon notice from the Clearing House.
The designation of an option writer for fulfillment of his obligation to sell the underlying futures contract (call options writer) or buy the underlying futures contract (put option writer) upon notice from the Clearing House.
期权卖方所给的履约通知的收据，它使得他必须履行特定的定约价格出售(在看涨期权)或买进(看跌期权)，原生期货的义务。