According to the popular stock market January Effect, "As goes January, so goes the year."
And the S&P 500 soared 5 percent in January.
"In sum, since 1928, when the S&P 500 has risen in January, it's climbed an average of 8.3% for the next 11 months and was up over that span nearly 78% of the time," writes Charles Schwab's Liz Ann Sonders. "When the S&P 500 has fallen in January, it's risen only 58% of the time for an average of only 2.8%."
Here's the table and chart from Sonders:
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