MSFT implied volatility
From the closing options book · October 20, 2026 · updated after every close
MSFT's at-the-money implied volatility was 26.7% at the October 20, 2026 close. Over the past 260 sessions it ranged from 17.2% to 71.3%, putting today's level at an IV rank of 18 and IV percentile of 44.
MSFT at-the-money IV, last 60 sessions
Options were pricing more movement than MSFT actually delivered over the last 20 sessions (26.7% implied against 21.7% realized).
IV rank places today's IV between the period's low (0) and high (100); IV percentile is the share of sessions with lower IV. Both use MSFT's own closing history.
These are the October 20, 2026 closing numbers. Members see MSFT's map move live all session.
Common questions
26.7% at the money at the October 20, 2026 close.
18 over the past 260 sessions (IV percentile 44).
Its IV percentile is 44: middling against its own past year.
Compare: implied volatility on other tickers
Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.