Who’s Afraid of Friday the 13th? Not the Stock Market.

Friday the 13th is known as the unluckiest of days, but someone forgot to tell the stock market.

Since its inception, the

S&P 500

averages a gain of 0.1% on Friday the 13th, which doesn’t sound like a lot but is triple the average gain of 0.03% on all trading days, according to Dow Jones Market Data. The worst one-day decline on Friday the 13th was in October 1989, when the S&P 500 fell 6.1%. The best was March 2020, when the index rose 9.3%.