A U.S. stock market sell-off in August saw the Dow Jones Industrial Average plunge 10.36% (1,810 points) in 10 days. On Aug. 24 alone, the DJIA fell a whopping 1,000 points before recovering.
The truth is that U.S. markets face even more headwinds the rest of 2015. For example, a Federal Reserve rate hike, a continual slowdown of China's economic growth, and huge, unchecked debts festering in Europe, just to name a few.
Watch to video to see what signals will tell Money Morning Capital Wave Strategist Shah Gilani a stock market sell-off is imminent. Plus, Shah explains his strategy for how to both protect -- and cash in -- on a stock market sell-off: