Century Aluminum (CENX) Options Chain
NASDAQ: CENXIndustrialsAluminumUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 7
- Share price
- $36.38
- Put/call ratio (volume)
- 11.59
- Expected move
- ±$0.3149
- Open interest (C / P)
- 0 / 0
CENX options summary
The CENX options chain for the October 16, 2026 expiration lists 16 call and 10 put contracts, with 7 days until expiration. At-the-money implied volatility near the $35.00 strike is 6.3%, which implies the market expects a move of about ±$0.3149 (0.9%) in Century Aluminum stock by expiration. The most open interest sits at the $25.00 call (0 contracts) and the $22.50 put (0 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CENX options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 22.50 | 0.00 | 0.00 | 0.08 | |||||
| 14.80 | 0.00 | 0.00 | 25.00 | 0.00 | 0.00 | 0.23 | |||||
| 8.35 | 0.00 | 0.00 | 30.00 | 0.00 | 0.00 | 0.05 | |||||
| 1.85 | 0.00 | 0.00 | 35.00 | 0.00 | 0.00 | 0.73 | |||||
| 0.24 | 0.00 | 0.00 | 40.00 | 0.00 | 0.00 | 4.10 | |||||
| 0.05 | 0.00 | 0.00 | 45.00 | 0.00 | 0.00 | 10.00 | |||||
| 0.07 | 0.00 | 0.00 | 50.00 | 0.00 | 0.00 | 15.00 | |||||
| 0.05 | 0.00 | 0.00 | 55.00 | 0.00 | 0.00 | 17.02 | |||||
| 0.04 | 0.00 | 0.00 | 60.00 | 15.80 | 18.10 | 18.55 | |||||
| 0.05 | 0.00 | 0.00 | 65.00 | 0.00 | 0.00 | 19.60 | |||||
| 0.05 | 0.00 | 0.00 | 70.00 | — | — | — | |||||
| 0.10 | 0.00 | 0.00 | 75.00 | — | — | — | |||||
| 0.02 | 0.00 | 0.00 | 80.00 | — | — | — | |||||
| 0.42 | 0.00 | 0.00 | 85.00 | — | — | — | |||||
| 0.09 | 0.00 | 0.00 | 90.00 | — | — | — | |||||
| 0.20 | 0.00 | 0.00 | 95.00 | — | — | — | |||||
| 0.27 | 0.00 | 0.00 | 100.00 | — | — | — | |||||
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 CENX's implied volatility?
At-the-money implied volatility for CENX options expiring October 16, 2026 is about 6.3%, an annualized estimate of how much the market expects Century Aluminum stock to move.
How many CENX option expiration dates are there?
CENX has 7 listed expiration dates, from Oct 16, 2026 to Jan 19, 2029.
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.