IS IT REALLY BEST TO SELL IN MAY?

摘要

May has had a checkered past, literally. When combined with June the S&P 500 was down 75% of the time between 1965 and 1984. Yet, it completely reversed that between 1985 and 1997 with 13 straight gains. The sheer magnitude of that shift illustrates that seasonal tendencies can themselves be cyclical. This is reinforced by the almost even up-down split after 1997.