Wednesday, January 12, 2011

First Trading Day of the Month Anomaly??

The S&P 500 rose 143 points in 2010.  134 of those 143 points were racked up on the first trading day of each month.  Here are the point changes for the first trading day of each month in 2010:

January +18
February +15
March +11
April +9
May +16
June -19
July -3
August +24
September +31
October +5
November +1
December +26

And now to kick off 2011, we have +14 for the first trading day of January.
I have no explanation for this trend, but think that's it's worth following.

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