They tend to tank when the markets fall (see chart 2).

他们倾向于在市场下跌的时候随动(见表2)。

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Early morning gains come even as overseas markets fall.

美股早盘上涨，海外市场下跌。

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Last week saw most major stock markets fall by a record 20 percent or more.

上星期，大多数主要股票市场超记录地下跌20%，或更多。

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That creates an ugly cycle: as financial markets fall, so do their stock values, and their tumbling shares encourage further selling.

FORBES: Magazine Article

Nokia has seen its market share in developing markets fall from what was once more than 70% in 2007 to an expected close to 50% in 2011.

FORBES: Nokia Reports Thursday, High Hopes For Lumia

Individual investors will begin put buying, selling short and getting out of longs anytime the markets fall by more than five percent over a period of days or weeks.

FORBES: How Skepticism Gives Rise To Booming Bull Markets