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The September effect: Is September the worst month for stocks?

Since 1957, September has been the S&P 500's weakest month, averaging −0.81% and rising in only 43% of years. Its worst was 1974 (−11.93%); its best, 2010 (+8.76%).

Jan: +1.10%JanFeb: +0.00%FebMar: +0.88%MarApr: +1.56%AprMay: +0.49%MayJun: +0.11%JunJul: +1.00%JulAug: +0.20%AugSep: −0.81%SepOct: +0.99%OctNov: +1.77%NovDec: +1.26%Dec
Average S&P 500 return by month since 1957. September outlined.

September in detail →

Patterns describe the past and can stop working. Not investment advice.

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