Zai Lab Limited (ZLAB)
NASDAQ: ZLAB
· Real-Time Price · USD
35.64
0.71 (2.03%)
At close: Aug 15, 2025, 1:20 PM
ZLAB Option Overview
Overview for all option chains of ZLAB. As of August 15, 2025, ZLAB options have an IV of 452.83% and an IV rank of 88.92%. The volume is 57 contracts, which is 58.76% of average daily volume of 97 contracts. The volume put-call ratio is 2.56, indicating a bearish sentiment in the market.
Implied Volatility
Implied Volatility (30d)
452.83%IV Rank
88.92%Historical Volatility
64.92%IV Low
74.14% on Sep 09, 2024IV High
500% on Jun 25, 2025Open Interest (OI)
Today's Open Interest
9,371Put-Call Ratio
0.41Put Open Interest
2,721Call Open Interest
6,650Open Interest Avg (30-day)
5,455Today vs Open Interest Avg (30-day)
171.79%Option Volume
Today's Volume
57Put-Call Ratio
2.56Put Volume
41Call Volume
16Volume Avg (30-day)
97Today vs Volume Avg (30-day)
58.76%Option Chain Statistics
This table provides a comprehensive overview of all ZLAB options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Aug 15, 2025 | 0 | 0 | 0 | 140 | 312 | 2.23 | 452.83% | 35 |
| Sep 19, 2025 | 13 | 25 | 1.92 | 789 | 244 | 0.31 | 110.33% | 35 |
| Oct 17, 2025 | 0 | 0 | 0 | 0 | 0 | 0 | 68.65% | 17.5 |
| Dec 19, 2025 | 3 | 6 | 2 | 2,201 | 2,017 | 0.92 | 82.72% | 25 |
| Jan 16, 2026 | 0 | 0 | 0 | 3,498 | 0 | 0 | n/a | 8 |
| Mar 20, 2026 | 0 | 10 | 0 | 22 | 148 | 6.73 | 59.09% | 30 |