The S&P 500 is now down 13% over the last year, which is the weakest YoY performance seen since the bull market began back in March 2009.  Below is a chart showing the rolling 1-year percentage change for the index throughout its history since 1928.

We also provide charts of rolling performance for the S&P 500 over the 2-year, 3-year, 5-year, 10-year, and 20-year time frames.  Just today, the S&P 500 dipped negative on a two-year basis, but it’s still up 20% on a three-year basis.  The five-year and 10-year change for the S&P stands at +35% and +40%, respectively, while the twenty-year change is at +187%.

What these charts show you is that the longer you extend the time frame, the less time is spent in negative territory.  Over the 20-year time frame, we haven’t been negative since the late 1940s.







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