They might go the other way, handing a loss to an in-and-out trader.

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Theoretically one way to game the contest would be to trade in and out of positions using real-time quotes, which would give a trader the advantage over others in the contest, who used delayed quotes when they tracked their portfolio on the channel's Web site.

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In naked short-selling, the locate rule and the delivery rule go out the window, since the trader doesn't borrow the shares to begin with.

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