Constellium Se Ordinary Shares (France) (CSTM) options traded 131 contracts on October 30, 2026 (67 calls and 64 puts, a put/call ratio of 0.96), compared with a 30-day average of 370. Options price a move of about ±2.4% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 39.8%
Implied move by the nearest expiration: ±2.4%
Option volume: 131 contracts (67 calls, 64 puts); 30-day average 370

Data as of October 30, 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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