← PNL404 · Vertex PharmaceuticalsEnglish · 한국어 · 日本語

Vertex Pharmaceuticals Seasonality

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

Based on 36 calendar years of monthly closes, starting 1991.

By Month

MonthAverageMedian% PositiveBestWorst
January+3.4%+3.7%66%+29.1%27.9%
February+0.2%1.1%46%+77.1%26.1%
March2.2%1.8%43%+36.5%35.5%
April+1.6%+3.1%60%+39.7%23.7%
May+7.7%+4.1%57%+56.0%17.0%
June+3.2%+0.9%57%+42.6%23.1%
July0.7%0.3%46%+21.3%19.3%
August+4.8%+2.6%65%+73.6%26.9%
September+3.0%0.2%49%+50.8%51.1%
October+0.1%+1.8%54%+35.8%23.4%
November2.0%1.3%49%+25.0%40.0%
December+7.2%+5.7%66%+31.8%15.5%

By Calendar Year

YearReturn
2025+12.6%
20241.0%
2023+40.9%
2022+31.5%
20217.1%
2020+7.9%
2019+32.1%
2018+10.6%
2017+103.4%
201641.5%
2015+5.9%
2014+59.9%
2013+77.3%
2012+26.2%
20115.2%
201018.2%
2009+41.0%
2008+30.8%
200737.9%
2006+35.2%
2005+161.8%
2004+2.1%
200334.7%
200235.5%
200165.6%
2000+308.6%
1999+17.6%
19989.8%
199718.0%
1996+51.9%
1995+76.7%
199418.9%
1993+89.7%
199233.9%

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