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.
3M seasonality — common questions
What is 3M's best month historically?
Historically, November has been 3M's strongest month, averaging +4.60% with a 93% win rate over 15 years of data. September has been the weakest at -2.88%.
Is 3M seasonal?
3M shows a measurable seasonal pattern: its best and worst months differ by 7.48 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 3M historically perform in October?
3M is currently in October, which has historically averaged +2.20% with a 56% win rate. That is a historically neutral window.
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