Constellium Se Ordinary Shares (France) (CSTM) options traded 1,005 contracts on November 4, 2026 (145 calls and 860 puts, a put/call ratio of 5.93), compared with a 30-day average of 321. Options price a move of about ±1.7% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 41.0%
Implied move by the nearest expiration: ±1.7%
Option volume: 1,005 contracts (145 calls, 860 puts); 30-day average 321

Data as of November 4, 2026.

CSTM Option Breakdown

A breakdown of key statistics for each option expiration listed for CSTM. View implied volatility, volatility skew, volume, open interest, straddle premiums, and liquidity -- including bid/ask spread and NBBO bid/ask sizes. Includes links to the option chain, as well as numerous detailed charts.

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