FCX implied volatility
From the closing options book · October 20, 2026 · updated after every close
FCX's at-the-money implied volatility was 54.3% at the October 20, 2026 close. Over the past 171 sessions it ranged from 31.3% to 66.4%, putting today's level at an IV rank of 65 and IV percentile of 72.
FCX at-the-money IV, last 60 sessions
Options were pricing more movement than FCX actually delivered over the last 20 sessions (54.3% implied against 27.9% 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 FCX's own closing history.
These are the October 20, 2026 closing numbers. Members see FCX's map move live all session.
Common questions
54.3% at the money at the October 20, 2026 close.
65 over the past 171 sessions (IV percentile 72).
Its IV percentile is 72: high 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.