Did stocks hit bottom? Your 8-point checklist

Markets sensed relief Tuesday after a string of brutal sessions, but stocks could tumble again before truly bottoming out, according to one strategist. Major U.S. averages spiked Tuesday morning in the wake of a three-day drubbing in which the Dow Jones industrial average (Dow Jones Global Indexes: .DJI) lost nearly 1,500 points. But based on some key indicators, whipsaw trading could persist ...