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Since I got so many e-mails on this subject, I wanted to revisit my post on how good Wednesdays have been for Wall Street.

Going back exactly six years, the days of the week for the S&P 500 break down like this:

Monday 1.31%
Tuesday -9.96%
Wednesday 37.19%
Thursday 4.99%
Friday -1.85%

That’s capital gains only. For all five days, the S&P 500 is up 28.97%. So except for Wednesday, the rest of the week is net down.

So what’s the deal on Hump Day?

A few emails suggested it could be due to Fed meetings, or possibly when the oil stats are released. Personally, I think it’s due to Lost which broadcasts on Wednesday. For the next six days, everyone on the Street says “What the fuck was that about?” It’s just a theory.

Let’s get some grad students on it.

Posted by edelfenbein at July 25, 2007 6:23 AM