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Taiwan Semiconductor Seasonality

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

Based on 30 calendar years of monthly closes, starting 1997.

By Month

MonthAverageMedian% PositiveBestWorst
January+7.2%+4.2%69%+41.0%11.2%
February+0.8%+1.8%55%+20.8%22.0%
March+2.1%+0.9%55%+27.7%11.2%
April+2.3%+1.0%66%+24.3%14.7%
May+0.3%+1.9%62%+21.1%23.2%
June+1.5%+1.7%55%+29.8%14.2%
July0.9%2.0%45%+39.0%29.8%
August+0.1%+1.2%53%+17.8%20.4%
September2.0%+1.4%57%+21.0%41.6%
October+5.8%+5.9%79%+36.0%13.7%
November+4.1%+3.0%62%+34.8%25.9%
December+1.8%+1.7%59%+25.7%23.8%

By Calendar Year

YearReturn
2025+53.9%
2024+89.9%
2023+39.6%
202238.1%
2021+10.3%
2020+87.7%
2019+57.4%
20186.9%
2017+37.9%
2016+26.4%
2015+1.7%
2014+28.3%
2013+1.6%
2012+32.9%
2011+3.0%
2010+9.6%
2009+45.5%
200820.7%
20078.9%
2006+13.6%
2005+22.6%
20045.5%
2003+56.9%
200254.8%
2001+39.4%
200050.9%
1999+290.1%
1998+13.1%

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