August and September are historically the worst months of the year for stocks.
True to form, August 2015 has been a doozy so far, taking investors on a wild ride that saw the Dow Jones industrial average travel over 10,000 points in just four sessions. As of Friday morning, the S&P 500 has lost 5.5 percent since the beginning of the month.
September could be perilous for your portfolio, too. Not only does history show that markets typically lose ground in September, but a potential interest rate hike by the Federal Reserve may make this autumn especially unnerving.
So, what's an investor to do?
We crunched the numbers with Kensho, a data analytics platform, to find some clues.