Factorial Energy (FAC) Options Chain
NASDAQ: FACMiscellaneousIndustrial Machinery/ComponentsUSD
Market open · Delayed 15 min · as of Oct 8, 2:01 PM ET
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $5.04
- Put/call ratio (OI)
- 0.78
- Put/call ratio (volume)
- 0.38
- ATM implied volatility
- 111.7%
- Expected move
- ±$0.8327
- Open interest (C / P)
- 270 / 210
FAC options summary
The FAC options chain for the October 16, 2026 expiration lists 5 call and 6 put contracts, with 8 days until expiration. Open interest stands at 270 calls and 210 puts, a put/call ratio of 0.78, which is fairly balanced between calls and puts. At-the-money implied volatility near the $5.00 strike is 111.7%, which implies the market expects a move of about ±$0.8327 (16.5%) in Factorial Energy stock by expiration.
The most open interest sits at the $7.50 call (216 contracts) and the $5.00 put (138 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
FAC options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.25 | 0.20 | 0.75 | 5.00 | 0.00 | 0.45 | 0.31 | |||||
| 0.26 | 0.00 | 0.25 | 7.50 | 2.00 | 4.70 | 1.50 | |||||
| 0.05 | 0.00 | 0.05 | 10.00 | 4.50 | 7.20 | 4.90 | |||||
| 0.17 | 0.00 | 0.00 | 12.50 | 6.90 | 9.70 | 6.40 | |||||
| 0.11 | 0.00 | 0.50 | 15.00 | 9.50 | 12.20 | 8.70 | |||||
| — | — | — | 17.50 | 11.30 | 15.00 | 8.80 | |||||
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 FAC put/call ratio?
For the October 16, 2026 expiration, the FAC put/call ratio based on open interest is 0.78 (210 puts vs 270 calls), and 0.38 based on today's volume. A ratio above 1 means more puts than calls.
What is FAC's implied volatility?
At-the-money implied volatility for FAC options expiring October 16, 2026 is about 111.7%, an annualized estimate of how much the market expects Factorial Energy stock to move.
How many FAC option expiration dates are there?
FAC has 4 listed expiration dates, from Oct 16, 2026 to Apr 16, 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.