CEG implied volatility
From the closing options book · October 20, 2026 · updated after every close
CEG's at-the-money implied volatility was 48.9% at the October 20, 2026 close. Over the past 260 sessions it ranged from 37.1% to 109.7%, putting today's level at an IV rank of 16 and IV percentile of 33.
CEG at-the-money IV, last 60 sessions
Options were pricing less movement than CEG actually delivered over the last 20 sessions (48.9% implied against 58.3% 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 CEG's own closing history.
These are the October 20, 2026 closing numbers. Members see CEG's map move live all session.
Common questions
48.9% at the money at the October 20, 2026 close.
16 over the past 260 sessions (IV percentile 33).
Its IV percentile is 33: 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.