This Top Market Strategist Reveals How to Survive a Summer Flash Crash

Don't get too complacent. August is historically a volatile time for the stock market. 

The summers are ripe for flash crashes, or sudden market drops in a matter of seconds. Dwindling trading volumes are one of the prime causes of flash crashes. 

That's the assessment from Nick Colas, co-founder of DataTrek Research. 

"If you see this happen, do not trade," Colas said.