Whether you are superstitious or not, everybody knows about Friday the 13. Tons of people choose to forgo their normal routines just to stay out of harms way. It is even estimated that businesses lose millions on these days because of the choices people make.

So where’s your money on this Friday the 13th?

According to a study done by CNN Money in 2005

Comparing the Dow Jones Industrial performance on a typical Friday from 1955 to 2005 to those times when the 13th day of the month fell on a Friday, revealed that the index performed better on the day synonymous with bad luck and superstition.

On average, the Dow ended positive 56.63 percent of the time when it was Friday, the 13th compared to a typical Friday, which ended higher 53.01 percent of the time. The Dow ended in negative territory 43.84 percent of the time on the average Friday and 40.96 when it was Friday, the 13th.

So maybe the difference isn’t much, but how superstitious are you?

image source - learnstockmarketlegends.com