It's Friday the 13th, so make sure to toss salt over your shoulder, watch out for ladders, knock on various pieces of wood — oh, and maybe buy some stocks too.
Why it matters: Believe it or not, the stock market tends to do better on Friday the 13th than other days.
By the numbers: Since 1928, the market on average returns a 0.09% gain on Friday the 13th, per data from LPL Financial's chief technical strategist Adam Turnquist.
"Regular" Fridays return 0.05% and all trading days, spooky or not, return 0.03% on average.
It's not just the average return, either — stocks are up 57.6% of the time on Friday the 13th, which is a better percentage than normal Fridays or trading days in general.
Reality check: Past performance is no indication of future results, no matter how superstitious you are.
This particular Friday the 13th looks to be far worse than usual, given the global market gyrations after Israel's strike on Iran.
The bottom line: Maybe Warren Buffett was on to something when he advised being greedy while others were fearful.