ETR implied volatility
From the closing options book · October 20, 2026 · updated after every close
ETR's at-the-money implied volatility was 24.8% at the October 20, 2026 close. Over the past 61 sessions it ranged from 19.9% to 54.9%, putting today's level at an IV rank of 14 and IV percentile of 41.
ETR at-the-money IV, last 60 sessions
Options were pricing more movement than ETR actually delivered over the last 20 sessions (24.8% implied against 17.1% 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 ETR's own closing history.
These are the October 20, 2026 closing numbers. Members see ETR's map move live all session.
Common questions
24.8% at the money at the October 20, 2026 close.
14 over the past 61 sessions (IV percentile 41).
Its IV percentile is 41: 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.