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Alphabet Seasonality

Historical month-by-month and year-by-year returns

Based on 23 calendar years of monthly closes, starting 2004.

By Month

MonthAverageMedian% PositiveBestWorst
January+2.3%+4.3%77%+12.2%18.4%
February3.0%0.9%36%+10.6%16.5%
March+0.1%+1.1%55%+15.2%13.2%
April+5.3%+3.2%64%+33.8%17.9%
May+3.3%+5.5%64%+26.0%11.0%
June0.4%0.6%45%+12.8%10.1%
July+5.1%+5.9%68%+21.8%10.0%
August0.1%0.6%43%+10.9%10.4%
September+2.7%+1.9%64%+26.6%13.5%
October+8.7%+9.2%73%+47.1%10.3%
November+1.1%+1.8%64%+13.9%18.5%
December+1.8%+2.1%68%+12.0%12.6%

By Calendar Year

YearReturn
2025+65.3%
2024+35.5%
2023+58.3%
202239.1%
2021+65.3%
2020+30.9%
2019+28.2%
20180.8%
2017+32.9%
2016+1.9%
2015+46.6%
20145.4%
2013+58.4%
2012+9.5%
2011+8.7%
20104.2%
2009+101.5%
200855.5%
2007+50.2%
2006+11.0%
2005+115.2%

These are historical patterns, not a forecast — past calendar-month performance does not predict future returns.