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.
AstraZeneca seasonality — common questions
What is AstraZeneca's best month historically?
Historically, April has been AstraZeneca's strongest month, averaging +3.01% with a 63% win rate over 15 years of data. August has been the weakest at -0.50%.
Is AstraZeneca seasonal?
AstraZeneca shows a measurable seasonal pattern: its best and worst months differ by 3.51 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 AstraZeneca historically perform in October?
AstraZeneca is currently in October, which has historically averaged -0.29% with a 56% win rate. That is a historically neutral window.
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