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.
BlackRock seasonality — common questions
What is BlackRock's best month historically?
Historically, November has been BlackRock's strongest month, averaging +6.45% with a 87% win rate over 15 years of data. September has been the weakest at -2.21%.
Is BlackRock seasonal?
BlackRock shows a measurable seasonal pattern: its best and worst months differ by 8.66 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 BlackRock historically perform in October?
BlackRock is currently in October, which has historically averaged +4.13% with a 75% win rate. That has historically been a seasonally favourable window.
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