ZLAB
Zai Lab Limited
stockNASDAQADR
At CloseOct 2, 2026 3:59:58 PM EDT
24.30USD-4.706%(-1.20)951,847
Pre-marketOct 2, 2026 9:17:30 AM EDT
25.30USD-0.784%(-0.20)
After-hoursOct 2, 2026 4:43:30 PM EDT
24.23USD-0.288%(-0.07)
As of 2026-09-15, there were 8,156,879 shares short with a short interest of 7.76%.
ZLAB Short Interest - Official
Short Interest
ZLAB Short Position Change - Official
Short Position Change
ZLAB Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-15 | 7.76 | 8,156,879 | 9.19 | +139,694 | +1.74 | 112,266,228 | 105,166,419 |
| 2026-08-31 | 7.62 | 8,017,185 | 7.33 | +551,298 | +7.38 | 112,266,228 | 105,166,419 |
| 2026-08-14 | 7.10 | 7,465,887 | 5.35 | +931,436 | +14.25 | 112,266,228 | 105,166,419 |
| 2026-07-31 | 6.21 | 6,534,451 | 10.85 | +182,558 | +2.87 | 112,922,546 | 105,166,419 |
| 2026-07-15 | 6.04 | 6,351,893 | 7.49 | -1,802,145 | -22.10 | 112,922,546 | 105,141,124 |
| 2026-06-30 | 7.76 | 8,154,038 | 7.97 | +903,370 | +12.46 | 112,922,546 | 105,141,124 |
| 2026-06-15 | 6.55 | 7,250,668 | 6.63 | +2,063,500 | +39.78 | 112,353,746 | 110,664,896 |
| 2026-05-15 | 4.69 | 5,187,168 | 6.76 | +733,195 | +16.46 | 112,353,746 | 110,664,896 |
| 2026-04-30 | 4.10 | 4,453,973 | 5.14 | -1,043,747 | -18.99 | 112,353,746 | 108,653,945 |
| 2026-04-15 | 5.06 | 5,497,720 | 6.96 | +165,068 | +3.10 | 112,669,482 | 108,653,945 |
| 2026-03-31 | 4.91 | 5,332,652 | 6.79 | +441,704 | +9.03 | 112,669,482 | 108,653,945 |
| 2026-03-13 | 4.50 | 4,890,948 | 7.24 | +1,090,537 | +28.70 | 110,640,739 | 108,653,945 |
| 2026-02-27 | 3.50 | 3,800,411 | 9.55 | +428,957 | +12.72 | 112,069,482 | 108,653,945 |
| 2026-02-13 | 3.10 | 3,371,454 | 4.01 | -216,803 | -6.04 | 112,069,482 | 108,653,945 |
| 2026-01-30 | 3.30 | 3,588,257 | 5.47 | -282,697 | -7.30 | 110,786,595 | 108,653,945 |
| 2026-01-15 | 3.56 | 3,870,954 | 4.20 | -378,042 | -8.90 | 110,786,595 | 108,653,945 |
| 2025-12-31 | 3.91 | 4,248,996 | 4.85 | -1,051,562 | -19.84 | 110,786,595 | 108,653,945 |
| 2025-12-15 | 4.88 | 5,300,558 | 6.93 | +262,691 | +5.21 | 110,786,595 | 108,719,196 |
| 2025-11-28 | 4.88 | 5,037,867 | 5.42 | +434,749 | +9.44 | 110,786,595 | 103,164,071 |
| 2025-11-14 | 4.23 | 4,603,118 | 4.67 | -419,789 | -8.36 | 110,593,760 | 108,705,925 |
| 2025-10-31 | 4.65 | 5,022,907 | 5.52 | +211,731 | +4.40 | 111,270,801 | 108,078,790 |
| 2025-10-15 | 4.45 | 4,811,176 | 10.15 | -88,017 | -1.80 | 111,270,801 | 108,078,790 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.