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Comment on Facebook’s Debut Marred by Trading Glitchesparent

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Do you have a source for your day-of-week hypothesis, or is it just your own intuition?

The data I've seen show that Fridays finish higher about 52% of the time.

Here are a couple sources:

http://traderfeed.blogspot.com/2008/01/2007-stock-market-ret...

http://www.equityclock.com/2010/02/16/best-day-of-the-week-t...

I wonder what the data looks like if you control for market performance during the week. NASDAQ has been falling for several days. http://www.google.com/finance?cid=13756934

Separate note: Considering Facebook is up 10-20% from the previous month on second market while the broader market was down quite a bit, it didn't do that badly.

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