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Gilead Sciences Seasonality

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

Based on 35 calendar years of monthly closes, starting 1992.

By Month

MonthAverageMedian% PositiveBestWorst
January+4.5%+5.0%59%+36.8%18.4%
February+0.8%1.2%43%+63.4%18.8%
March1.1%0.0%49%+23.5%25.0%
April+1.0%0.0%51%+50.7%21.2%
May+2.1%+2.7%57%+22.6%14.8%
June+2.3%+2.1%63%+30.1%27.3%
July+1.7%+1.9%57%+48.3%26.7%
August+3.5%+0.6%58%+45.7%22.3%
September+3.1%+1.4%56%+37.1%17.6%
October+0.3%+0.3%53%+31.2%27.7%
November+4.0%+4.7%65%+34.6%24.0%
December+1.0%1.4%38%+31.9%13.7%

By Calendar Year

YearReturn
2025+32.9%
2024+14.0%
20235.6%
2022+18.2%
2021+24.6%
202010.3%
2019+3.9%
201812.7%
20170.0%
201629.2%
2015+7.4%
2014+25.5%
2013+104.5%
2012+79.5%
2011+12.9%
201016.2%
200915.4%
2008+11.1%
2007+41.7%
2006+23.5%
2005+50.2%
2004+20.1%
2003+71.4%
2002+3.5%
2001+58.5%
2000+53.2%
1999+31.8%
1998+7.4%
1997+53.0%
199621.9%
1995+236.8%
199420.8%
199337.7%
19927.2%

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