Halloween Indicator

From Chart of the Day: 

"The stock market is now entering what has historically been the strongest half of the year. Today's chart illustrates that investing in the S&P 500 from the last trading day in October (therefore referred to as the Halloween indicator) through the end of April accounted for the vast majority of S&P 500 gains since 1950. While there are some noteworthy periods during which the Halloween indicator didn't produce (e.g. during the oil embargo of 1973-74, the dot-com bust of 2000-01, and the financial meltdown of 2007-2009), the overall out performance is compelling."

*Long ETFs related to the S&P 500 in client accounts.

Link:  Halloween Indicator