$GBSN - The U.S. Securities and Exchange Commission has issued a rule to restrict short selling under certain circumstances. Under the alternative uptick rule, trading halts when the market price of a security declines 10 percent in one day. Once triggered, the rule remains in effect for the remainder of the trading day and all of the next trading day. The restriction does not allow a short sale to occur at a price equal to or less than the highest current nationwide offer to purchase the security. In this way, short sales cannot drive down prices without an intervening uptick in price.