Zenas BioPharma (ZBIO) Options Chain
NASDAQ: ZBIOHealth CareBiotechnology: Pharmaceutical PreparationsUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 17, 2027
- Days to expiration
- 432
- Share price
- $27.26
- Put/call ratio (OI)
- 3.54
- Put/call ratio (volume)
- 0.20
- Expected move
- ±$18.86
- Open interest (C / P)
- 1.17K / 4.14K
ZBIO options summary
The ZBIO options chain for the December 17, 2027 expiration lists 10 call and 6 put contracts, with 432 days until expiration. Open interest stands at 1,170 calls and 4,137 puts, a put/call ratio of 3.54, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $25.00 strike is 63.6%, which implies the market expects a move of about ±$18.86 (69.2%) in Zenas BioPharma stock by expiration.
The most open interest sits at the $35.00 call (982 contracts) and the $20.00 put (4.13K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ZBIO options chain · December 17, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 30.14 | 22.50 | 27.50 | 2.50 | — | — | — | |||||
| 23.98 | 24.50 | 29.50 | 5.00 | — | — | — | |||||
| 23.50 | 0.00 | 0.00 | 10.00 | 0.00 | 5.00 | 2.41 | |||||
| 12.30 | 18.00 | 23.00 | 12.50 | — | — | — | |||||
| — | — | — | 15.00 | 0.00 | 5.00 | 2.59 | |||||
| 17.80 | 9.50 | 14.50 | 20.00 | 3.60 | 5.50 | 3.50 | |||||
| — | — | — | 22.50 | 2.00 | 7.00 | 5.64 | |||||
| 11.70 | 0.00 | 0.00 | 25.00 | 3.50 | 8.50 | 5.89 | |||||
| 8.00 | 5.50 | 10.50 | 30.00 | 7.00 | 12.00 | 8.11 | |||||
| 10.60 | 6.30 | 9.00 | 35.00 | — | — | — | |||||
| 7.90 | 0.00 | 0.00 | 40.00 | — | — | — | |||||
| 8.00 | 2.00 | 7.00 | 45.00 | — | — | — | |||||
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 ZBIO put/call ratio?
For the December 17, 2027 expiration, the ZBIO put/call ratio based on open interest is 3.54 (4,137 puts vs 1,170 calls), and 0.20 based on today's volume. A ratio above 1 means more puts than calls.
What is ZBIO's implied volatility?
At-the-money implied volatility for ZBIO options expiring December 17, 2027 is about 63.6%, an annualized estimate of how much the market expects Zenas BioPharma stock to move.
How many ZBIO option expiration dates are there?
ZBIO has 7 listed expiration dates, from Oct 16, 2026 to Dec 17, 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.