'Warren Buffett believes in this rule as well,' he added, referring to Mr. Buffett's bullish selling of long-term put options on the Standard & Poor's 500-stock index in recent years.

他说，巴菲特(Warren Buffett)也相信这一准则。 由于看涨股市前景，巴菲特近年来持续抛售标准普尔500股指期货的长期看跌期权。

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By the '90s, its main business had become overseeing financial products such as stock index futures and currency options, but some in Washington thought it should stick to pork bellies and soybeans.

到了90年代，她的主要工作已经变成监管金融产品譬如股票指数期货和货币期权。而在华盛顿一些人看来，它应该继续只管猪肚子和黄豆。

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Besides Index futures and options, the HKFE also traded in four currency futures and 30 stock futures contracts.

除了指数期货和期权，期货交易所亦买卖四种货币期货及30种股票期货合约。

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Friday is additionally triple witching the end-of-the-quarter event when the stock-index futures, stock-index options, and stock options for December all expire.

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Between its Exchange, and its new all-electronic market C2, CBOE captured 26.7% of all U.S. stock and stock-index options trades in April 2011.

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But reasonably sophisticated investors can create the same product themselves by purchasing a risk-free zero-coupon Treasury bond and call options on a stock index, such as XSP options traded on the Chicago Board Options Exchange.

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