X4 Pharmaceuticals (XFOR) Options Chain
NASDAQ: XFORHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $2.91
- Put/call ratio (OI)
- 0.00
- Put/call ratio (volume)
- 0.08
- Expected move
- ±$0.157
- Open interest (C / P)
- 6.42K / 0
XFOR options summary
The XFOR options chain for the December 18, 2026 expiration lists 3 call and 2 put contracts, with 68 days until expiration. Open interest stands at 6,420 calls and 0 puts, a put/call ratio of 0.00, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 12.5%, which implies the market expects a move of about ±$0.157 (5.4%) in X4 Pharmaceuticals stock by expiration.
The most open interest sits at the $5.00 call (6.11K contracts) and the $2.50 put (0 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
XFOR options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 2.00 | 0.00 | 0.00 | 2.50 | 0.00 | 0.00 | 0.15 | |||||
| 0.10 | 0.05 | 0.10 | 5.00 | 0.00 | 0.00 | 1.60 | |||||
| 0.10 | 0.00 | 3.10 | 7.50 | — | — | — | |||||
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 XFOR put/call ratio?
For the December 18, 2026 expiration, the XFOR put/call ratio based on open interest is 0.00 (0 puts vs 6,420 calls), and 0.08 based on today's volume. A ratio above 1 means more puts than calls.
What is XFOR's implied volatility?
At-the-money implied volatility for XFOR options expiring December 18, 2026 is about 12.5%, an annualized estimate of how much the market expects X4 Pharmaceuticals stock to move.
How many XFOR option expiration dates are there?
XFOR 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.