The stock market’s nightmare may be far from over

After a nail-biting week with the Dow Jones Industrial Average sinking nearly 1,400 points over two sessions, the jury is still out on whether the selloff signals a fundamental shift in the stock market or a brief episodic correction. But one thing is certain, investors should brace for more drama in the coming days as corporate earnings, rising interest rates and economic data all converge for a volatile mix of angst-ridden trading.