In the aftermath of the "Flash Crash, " the Nasdaq canceled trades on a number of stocks that saw particularly abnormal activity, including Boston Beer Company, the First Trust ISE Revere Natural Gas exchange-traded fund and the Templeton Emerging Markets Income Fund.

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In situations like the flash crash, market makers seem to be the key to finding the other side of trades.

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The very low volume indicated it was also due to the activities of other short-term traders, including program-trading firms and flash-traders, in there every day doing their job of making short-term trades for quick profits.

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