Day light and investor sentiment

 

SEPTEMBER 13, 2011 Tuesday  Bad News, Not Daylight Saving, to Blame for Market Dips in Fall The S&P 500's worst Mondays of the year tend to occur in the fall, close to the annual switch from daylight saving time, with average daily returns hitting a low of nearly minus 8%. But is the dip due to traders' sleep disturbances after the time change, as the economist Mark Kamstra theorized? A study by Jeffrey R. Gerlach of Sungkyunkwan University says no; the pattern was the result of negative financial news. Source: Daylight and Investor Sentiment: A Second Look at Two Stock Market Behavioral Anomalies