NOV implied volatility
From the closing options book · October 20, 2026 · updated after every close
NOV's at-the-money implied volatility was 40.5% at the October 20, 2026 close. Over the past 21 sessions it ranged from 31.1% to 82.5%, putting today's level at an IV rank of 18 and IV percentile of 38.
NOV at-the-money IV, last 60 sessions
Options were pricing more movement than NOV actually delivered over the last 20 sessions (40.5% implied against 25.8% 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 NOV's own closing history.
These are the October 20, 2026 closing numbers. Members see NOV's map move live all session.
Common questions
40.5% at the money at the October 20, 2026 close.
18 over the past 21 sessions (IV percentile 38).
Its IV percentile is 38: 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.