Uptick Rule

This old-school rule from the 1930s meant that if you were making any short sale transaction, you had to enter at a price higher than the price of the previous trade.

The idea behind the rule was that when the price of an asset was already nosediving, short sellers wouldn't push the price even lower. In 2007, this rule was taken off the books. In 2009, there was some talk to bringing it rule back in some form.

Oh, fickle economists.

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