看跌期权 put option ; [金融] PUT ; protective put ; sell put
买入看跌期权 Long Put
卖出看跌期权 Short Put ; sell put ; Short put option
格林斯潘看跌期权 Greenspan Put
看涨期权和看跌期权 Calls& Puts ; Call Options and Put Options
欧式看跌期权 European Put Option ; European Put
美式看跌期权 american put option
熊市看跌期权价差 bear put spread
合成看跌期权 synthetic put
牛市看跌期权价差 bull put spread
如果你买入看跌期权，只有市场跌的足够快你才能赢。
When you buy a put, you win only if the market falls fast enough.
按照2009年的预期收益衡量，谷歌股票目前的市盈率为25倍，但考虑到谷歌的中期收入增长可能会跌向10%，这样的市盈率水平难说合理，而且还要外加谷歌员工的股票期权成本。
With Google's medium-term revenue growth likely to fall toward 10%, it is hard to justify paying 25 times 2009 consensus earnings, including the cost of employee stock options.
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