Companhia Siderurgica Nacional S.A. (SID) Options Chain
NYSE: SIDIndustrialsSteel/Iron OreUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 69
- Share price
- $1.28
- Put/call ratio (OI)
- 0.28
- Put/call ratio (volume)
- 6.64
- ATM implied volatility
- 191.0%
- Expected move
- ±$1.06
- Open interest (C / P)
- 10.98K / 3.13K
SID options summary
The SID options chain for the December 18, 2026 expiration lists 4 call and 6 put contracts, with 69 days until expiration. Open interest stands at 10,984 calls and 3,126 puts, a put/call ratio of 0.28, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $1.50 strike is 191.0%, which implies the market expects a move of about ±$1.06 (83.1%) in Companhia Siderurgica Nacional S.A. stock by expiration.
The most open interest sits at the $1.00 call (6.44K contracts) and the $1.00 put (2.97K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
SID options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.78 | 0.10 | 0.80 | 0.50 | 0.00 | 0.00 | 0.05 | |||||
| 0.40 | 0.05 | 0.50 | 1.00 | 0.05 | 0.15 | 0.10 | |||||
| 0.15 | 0.10 | 0.20 | 1.50 | 0.25 | 1.25 | 0.50 | |||||
| 0.05 | 0.00 | 0.05 | 2.00 | — | — | — | |||||
| — | — | — | 2.50 | 0.95 | 1.95 | 1.40 | |||||
| — | — | — | 5.00 | 2.70 | 5.50 | 4.00 | |||||
| — | — | — | 7.50 | 4.70 | 8.20 | 5.98 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the SID put/call ratio?
For the December 18, 2026 expiration, the SID put/call ratio based on open interest is 0.28 (3,126 puts vs 10,984 calls), and 6.64 based on today's volume. A ratio above 1 means more puts than calls.
What is SID's implied volatility?
At-the-money implied volatility for SID options expiring December 18, 2026 is about 191.0%, an annualized estimate of how much the market expects Companhia Siderurgica Nacional S.A. stock to move.
How many SID option expiration dates are there?
SID has 4 listed expiration dates, from Oct 16, 2026 to Mar 19, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.