Zai Lab (ZLAB) Options Chain
NASDAQ: ZLABHealthcareBiotechnologyUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Dec 17, 2027
- Days to expiration
- 432
- Share price
- $24.99
- Put/call ratio (OI)
- 10.50
- Put/call ratio (volume)
- 1.26
- Expected move
- ±$16.58
- Open interest (C / P)
- 368 / 3.86K
ZLAB options summary
The ZLAB options chain for the December 17, 2027 expiration lists 8 call and 7 put contracts, with 432 days until expiration. Open interest stands at 368 calls and 3,864 puts, a put/call ratio of 10.50, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $25.00 strike is 61.0%, which implies the market expects a move of about ±$16.58 (66.3%) in Zai Lab stock by expiration.
The most open interest sits at the $30.00 call (153 contracts) and the $20.00 put (1.94K contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ZLAB options chain · December 17, 2027
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 21.30 | 17.50 | 22.50 | 5.00 | — | — | — | |||||
| — | — | — | 15.00 | 0.00 | 0.00 | 2.50 | |||||
| 11.50 | 8.50 | 13.00 | 17.50 | 2.10 | 3.20 | 2.20 | |||||
| 11.00 | 0.00 | 0.00 | 20.00 | 1.00 | 6.00 | 3.50 | |||||
| 7.60 | 5.50 | 10.50 | 22.50 | 2.50 | 7.50 | 4.60 | |||||
| 8.63 | 4.50 | 9.50 | 25.00 | 3.50 | 8.50 | 6.40 | |||||
| 5.89 | 3.00 | 8.00 | 30.00 | 7.00 | 12.00 | 9.29 | |||||
| 4.25 | 3.50 | 7.00 | 35.00 | 10.50 | 15.50 | 12.80 | |||||
| 2.50 | 1.00 | 6.00 | 40.00 | — | — | — | |||||
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 ZLAB put/call ratio?
For the December 17, 2027 expiration, the ZLAB put/call ratio based on open interest is 10.50 (3,864 puts vs 368 calls), and 1.26 based on today's volume. A ratio above 1 means more puts than calls.
What is ZLAB's implied volatility?
At-the-money implied volatility for ZLAB options expiring December 17, 2027 is about 61.0%, an annualized estimate of how much the market expects Zai Lab stock to move.
How many ZLAB option expiration dates are there?
ZLAB has 6 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.