Unusual Options Activity
ZLAB Unusual Options Activity - Zai Lab Limited - American Depositary Shares
- Last active day
- October 5, 2026
- Active days (30d)
- 11
- Biggest recent print
- Put $35.0000 · $770K
AI summary
On October 5, 2026, Zai Lab Limited (ZLAB) experienced notable options activity with two prints recorded. The total put premium reached approximately $986,310, while no call premiums were noted. The activity reflects a focus on put options, with significant trades involving a put option with a strike price of $25, expiring on December 18, 2026, which accounted for a premium of $216,450 and a volume-to-open interest ratio of 2.7. Additionally, a put option with a strike price of $35, expiring on March 19, 2027, was also traded, generating a premium of $769,860 and a volume-to-open interest ratio of 2.2. Over the past 30 days, ZLAB has seen active trading on 11 days, suggesting a heightened interest in its options market. The balance of activity heavily favors puts, indicating a potential bearish sentiment among traders.
AI-generated summary
ZLAB was last active on October 5, 2026.
Prints on October 5, 2026
| Ticker | Side | Strike | Expiry | Vol/OI | Premium | IV | New |
|---|---|---|---|---|---|---|---|
| ZLAB | Put | $25.0000 | 12/18/26 (76d) | 2.7× | $216K | 53% | |
| ZLAB | Put | $35.0000 | 03/19/27 (167d) | 2.2× | $770K | 68% |
History
- 2026-10-052 prints$0K calls$986K puts
- 2026-10-022 prints$0K calls$986K puts
- 2026-09-301 prints$0K calls$542K puts
- 2026-09-292 prints$338K calls$542K puts
- 2026-09-281 prints$338K calls$0K puts
- 2026-09-241 prints$240K calls$0K puts
- 2026-09-231 prints$240K calls$0K puts
- 2026-09-181 prints$291K calls$0K puts
- 2026-09-171 prints$291K calls$0K puts
- 2026-09-161 prints$0K calls$211K puts
- 2026-09-151 prints$0K calls$211K puts
- 2026-09-031 prints$0K calls$502K puts
- 2026-09-021 prints$0K calls$502K puts
- 2026-09-011 prints$0K calls$407K puts
- 2026-08-311 prints$0K calls$504K puts
- 2026-08-281 prints$0K calls$504K puts
- 2026-08-272 prints$450K calls$270K puts
- 2026-08-262 prints$450K calls$270K puts
- 2026-07-201 prints$259K calls$0K puts
- 2026-07-171 prints$259K calls$0K puts
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