Watch out for these UltraShort ETFs. They are only useful for day trading. Over periods longer than a day, they don't match the returns you'd expect to see for

Watch out for these UltraShort ETFs. They are only useful for day trading. Over periods longer than a day, they don't match the returns you'd expect to see for a variety of reasons. More info here: http://www.businessinsider.com/2008/12/ultrashort-etfs----caveat-investor http://www.businessinsider.com/2008/12/ultrashort-etfs----ca...