SEC's ban on short selling is set to expire Thursday night. It seems pretty likely to me that the ban probably contributed to the volatility on Monday. Ordinarily short sellers would provide a floor to that sort of drop by taking profits and thereby creating buying pressure. While the ban theoretically applies only to 800 or so financial stocks, it's put a huge damper on all short selling. With my broker you now have to call if you want to do any shorting instead of just clicking the buttons.
So what is the future of short selling in America (or the world for that matter).