A combination of a futures contract and an option, in which one is bullish and one is bearish.

一种一个期货合同和一个期权的组合，其中一个看涨一个看跌。

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After the limitation on put-option for stock prices is removed, the bidirectionally fluctuation spillover will exist in both stocks and futures; yet, stocks will take stronger leading place.

解除放空价格限制前后现货与期货都存在双向的波动性外溢，但现货之领先地位增加。

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After the limitation on put-option for stock prices is removed, the bidirectionally fluctuation spillover will exist in both stocks and futures; yet, stocks will take stronger leading place.

解除放空价格限制前后现货与期货都存在双向的波动性外溢，但现货之领先地位增加。

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