Companhia Siderurgica Nacional S.A. (SID) options traded 101 contracts on October 21, 2026 (101 calls and 0 puts, a put/call ratio of 0.00), compared with a 30-day average of 137. Options price a move of about ±3.5% by the nearest expiration.

Key numbers

30-day implied volatility (IV30): 48.3%
Implied move by the nearest expiration: ±3.5%
Option volume: 101 contracts (101 calls, 0 puts); 30-day average 137

Data as of October 21, 2026.

SID Option Breakdown

A breakdown of key statistics for each option expiration listed for SID. 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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