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.
National Grid seasonality — common questions
What is National Grid's best month historically?
Historically, April has been National Grid's strongest month, averaging +2.49% with a 69% win rate over 15 years of data. May has been the weakest at -1.65%.
Is National Grid seasonal?
National Grid shows a measurable seasonal pattern: its best and worst months differ by 4.14 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 National Grid historically perform in August?
National Grid is currently in August, which has historically averaged -0.34% with a 50% win rate. That is a historically neutral window.
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