Fulcrum Therapeutics (FULC) Options Chain
NASDAQ: FULCHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 8, 4:00 PM ET · Delayed 15 min
After hours: 3.75 0.00%
Expiration date
- Expiration
- Oct 16, 2026
- Days to expiration
- 8
- Share price
- $3.75
- Put/call ratio (OI)
- 0.04
- Put/call ratio (volume)
- 0.50
- Expected move
- ±$0.5443
- Open interest (C / P)
- 24 / 1
FULC options summary
The FULC options chain for the October 16, 2026 expiration lists 3 call and 1 put contracts, with 8 days until expiration. Open interest stands at 24 calls and 1 puts, a put/call ratio of 0.04, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $4.00 strike is 98.0%, which implies the market expects a move of about ±$0.5443 (14.5%) in Fulcrum Therapeutics stock by expiration.
The most open interest sits at the $4.00 call (20 contracts) and the $4.00 put (1 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
FULC options chain · October 16, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.90 | 0.00 | 1.35 | 3.00 | — | — | — | |||||
| 0.05 | 0.00 | 0.05 | 4.00 | 0.00 | 0.95 | 0.25 | |||||
| 1.08 | 0.00 | 0.15 | 5.00 | — | — | — | |||||
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 the FULC put/call ratio?
For the October 16, 2026 expiration, the FULC put/call ratio based on open interest is 0.04 (1 puts vs 24 calls), and 0.50 based on today's volume. A ratio above 1 means more puts than calls.
What is FULC's implied volatility?
At-the-money implied volatility for FULC options expiring October 16, 2026 is about 98.0%, an annualized estimate of how much the market expects Fulcrum Therapeutics stock to move.
How many FULC option expiration dates are there?
FULC 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.