As with any highflying stock, though, a few investors are actively betting on a reversal of fortune.
然而正如所有高估的股票，有些投资者开始打赌财富将会逆转。
The reason: It forces you to buy into depressed sectors that may be due for a rebound, while lightening up on highflying sectors that could be set to tumble.
原因在此：它迫使你买入有望反弹的受挫品种，同时减持那些必将下滑的当红品种。
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