October 2018 was a spooky month. The S&P 500 Index once again entered correction territory as it declined -10% from its peak during the summer. The continued pattern of declines again raises the question: Is this the beginning of a bear market? Of course, not all corrections turn into bear markets. Data from the Schwab Center for Financial Research shows that there have been 22 market corrections since 1974; only four of them, occurring in 1980, 1987, 2000 and 2007, eventually ended up as bear markets.