Crescent Biopharma (CBIO) Options Chain
NASDAQ: CBIOHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 41
- Share price
- $14.91
- Put/call ratio (OI)
- 0.70
- Put/call ratio (volume)
- 1.00
- ATM implied volatility
- 126.2%
- Expected move
- ±$6.30
- Open interest (C / P)
- 10 / 7
CBIO options summary
The CBIO options chain for the November 20, 2026 expiration lists 3 call and 4 put contracts, with 41 days until expiration. Open interest stands at 10 calls and 7 puts, a put/call ratio of 0.70, which is fairly balanced between calls and puts. At-the-money implied volatility near the $15.00 strike is 126.2%, which implies the market expects a move of about ±$6.30 (42.3%) in Crescent Biopharma stock by expiration.
The most open interest sits at the $20.00 call (8 contracts) and the $15.00 put (4 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CBIO options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| — | — | — | 12.50 | 0.00 | 4.90 | 1.00 | |||||
| — | — | — | 15.00 | 0.20 | 4.90 | 2.60 | |||||
| — | — | — | 17.50 | 1.50 | 6.00 | 1.70 | |||||
| 2.95 | 0.00 | 4.90 | 20.00 | 3.50 | 7.50 | 2.40 | |||||
| 2.05 | 0.00 | 4.90 | 22.50 | — | — | — | |||||
| 0.95 | 0.00 | 0.00 | 25.00 | — | — | — | |||||
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 CBIO put/call ratio?
For the November 20, 2026 expiration, the CBIO put/call ratio based on open interest is 0.70 (7 puts vs 10 calls), and 1.00 based on today's volume. A ratio above 1 means more puts than calls.
What is CBIO's implied volatility?
At-the-money implied volatility for CBIO options expiring November 20, 2026 is about 126.2%, an annualized estimate of how much the market expects Crescent Biopharma stock to move.
How many CBIO option expiration dates are there?
CBIO has 5 listed expiration dates, from Oct 16, 2026 to May 21, 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.