Connect Biopharma (CNTB) Options Chain
NASDAQ: CNTBHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 18, 2026
- Days to expiration
- 68
- Share price
- $0.87
- Put/call ratio (OI)
- 0.05
- Put/call ratio (volume)
- 0.16
- ATM implied volatility
- 215.6%
- Expected move
- ±$0.8097
- Open interest (C / P)
- 5.76K / 306
CNTB options summary
The CNTB options chain for the December 18, 2026 expiration lists 2 call and 3 put contracts, with 68 days until expiration. Open interest stands at 5,763 calls and 306 puts, a put/call ratio of 0.05, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 215.6%, which implies the market expects a move of about ±$0.8097 (93.1%) in Connect Biopharma stock by expiration.
The most open interest sits at the $2.50 call (3.17K contracts) and the $2.50 put (305 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
CNTB options chain · December 18, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.05 | 0.00 | 0.20 | 2.50 | 1.15 | 1.70 | 1.60 | |||||
| 0.10 | 0.00 | 0.40 | 5.00 | 3.60 | 4.60 | 3.80 | |||||
| — | — | — | 7.50 | 0.00 | 0.00 | 5.50 | |||||
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 CNTB put/call ratio?
For the December 18, 2026 expiration, the CNTB put/call ratio based on open interest is 0.05 (306 puts vs 5,763 calls), and 0.16 based on today's volume. A ratio above 1 means more puts than calls.
What is CNTB's implied volatility?
At-the-money implied volatility for CNTB options expiring December 18, 2026 is about 215.6%, an annualized estimate of how much the market expects Connect Biopharma stock to move.
How many CNTB option expiration dates are there?
CNTB 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.