Before you go out and buy everything this morning, though, there’s a big caveat to that average; one of the better market days on record occurred on March 13th, 2020 when the S&P 500 rallied 9.3%! If you take that out, the average S&P 500 performance on Friday the 13th falls by more than half to 0.15%. Still not terrible, though.The chart below shows the S&P 500’s performance on each individual Friday the 13th since 1999. Big downside moves on Friday the 13th have been uncommon with just three days out of 42 where the S&P 500 fell more than 1% (December 2002, April 2012, and November 2015) while there have been seven days that rallied more than 1%. Who knows? Since Friday the 13th historically hasn’t been that unlucky for the market, maybe we’ll finally get a day of positive breadth!More By This Author:General Electric, Spin-Offs, And DividendsCPI Right On TargetSmall Business Facts Vs. Feelings