Why You Should Always Be Ready for a Big Market Sell-off

The question is only one of timing and magnitude, writes David Rosenberg, strategist at Gluskin Sheff. Only once in the last 89 years has the S&P 500 not dropped at least 4.4% from an interim peak, and in 2016 there were four of these occurrences. In 2016, the S&P 500 rose 9.5%.