These figures are computed from 15 years of actual monthly closing prices. Past seasonal patterns are not a guarantee of future performance. See our methodology for how this is calculated, or visit the Academy to learn how to read seasonal data responsibly.
First Solar seasonality — common questions
What is First Solar's best month historically?
Historically, May has been First Solar's strongest month, averaging +6.43% with a 44% win rate over 15 years of data. September has been the weakest at -2.95%.
Is First Solar seasonal?
First Solar shows a measurable seasonal pattern: its best and worst months differ by 9.38 percentage points on average. These figures come from 15 years of real monthly closing prices. Seasonality is a historical tendency, not a prediction.
How does First Solar historically perform in August?
First Solar is currently in August, which has historically averaged +4.19% with a 56% win rate. That is a historically neutral window.
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