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.
iShares High Yield seasonality — common questions
What is iShares High Yield's best month historically?
Historically, July has been iShares High Yield's strongest month, averaging +1.30% with a 81% win rate over 15 years of data. September has been the weakest at -0.69%.
Is iShares High Yield seasonal?
iShares High Yield shows a measurable seasonal pattern: its best and worst months differ by 1.99 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 iShares High Yield historically perform in August?
iShares High Yield is currently in August, which has historically averaged +0.07% with a 69% win rate. That is a historically neutral window.
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