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So far this decade, the market hasn’t done very well except for one small phenomenon—the first trading day of the month. Through yesterday, the S&P 500 is down 39.5% for the decade. But the market has returned over 21% on the first day of the month (neither figure includes dividends).

What’s interesting is that first days of the month occur less than 5% of the time, so sitting out the rest of the time would have been a smart strategy. How’d you like a job that probably improved your performance if you took over 20 days a month?

Posted by edelfenbein at May 22, 2009 9:39 AM