In fact, the last time speculators bet this heavily on oil, the bottom dropped out of the market, as you can see by this illustration from Zero Hedge.

事实上，在市场底部下跌的时候，投资者在这个位置都进行了很大的下注，如你所看到说明这是一个零对冲。

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He thought he would make a fortune in property, but just after he bought several buildings, the bottom dropped out of the market and he lost a lot of money.

他以为在房地产上可赚大钱，但是他刚买下几幢大楼，价格就跌了，他亏了很多钱。

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After steady increases since the bottom dropped out of the U.S. economy in 2008, exports have been on the upswing.

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Those deals were before the bottom dropped out of oil prices.

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"Stuyvesant was not necessarily a reflection of the bad real estate market, but rather over-ambitious assumptions, lack of risk controls and poor contingency planning, " explains Burt White, managing director of research and chief investment officer of LPL Financial, further asserting that the bottom dropped out of the market months ago.

FORBES: Magazine Article