The current stock market downturn is providing some compelling opportunities for astute investors.After running hard for more than two years, the current bull market is finally taking a well-deserved breather. The Nasdaq Composite has slipped into correction territory, defined as a decline of 10% or more from a recent peak. While it can be unsettling to watch the value of our investing accounts slump, savvy investors will recognize the opportunity that the current downturn represents. We don't yet know if t ...