ZLAB
Zai Lab Ltd
Customer concentration
— top customer 25% of receivables
One customer — 25% of receivables (As of March 31, 2026)
“As of March 31, 2026, our largest customer accounted for approximately 25% of our total accounts receivable collectively.”
Company with tickers: ZLAB
CIK
1704292
CUSIP
98887Q104
Shares Outstanding
112,354,858
Website
https://www.zailaboratory.com
13F Activity (30d)
10 filings
6 filers
Total shares sold short and not yet covered, reported to FINRA by broker-dealers and published twice a month (bi-monthly). Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Short Squeeze Score
86/100
Short interest 5.8% of shares — P77
Days to cover 8.5 — P88
Short-volume trend +18.6% — P93
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-05-29). Equal-weight mean of the available factors.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
| 2026-05-29 | 6,532,695 | 5,187,168 | +1,345,527 | 8.49 |
| 2026-05-15 | 5,187,168 | 4,453,973 | +733,195 | 6.76 |
| 2026-04-30 | 4,453,973 | 5,497,720 | -1,043,747 | 5.14 |
| 2026-04-15 | 5,497,720 | 5,332,652 | +165,068 | 6.96 |
| 2026-03-31 | 5,332,652 | 4,890,948 | +441,704 | 6.79 |
| 2026-03-13 | 4,890,948 | 3,800,411 | +1,090,537 | 7.24 |
| 2026-02-27 | 3,800,411 | 3,371,454 | +428,957 | 9.55 |
| 2026-02-13 | 3,371,454 | 3,588,257 | -216,803 | 4.01 |
| 2026-01-30 | 3,588,257 | 3,870,954 | -282,697 | 5.47 |
| 2026-01-15 | 3,870,954 | 4,248,996 | -378,042 | 4.20 |
| 2025-12-31 | 4,248,996 | 5,300,558 | -1,051,562 | 4.85 |
| 2025-12-15 | 5,300,558 | 5,037,867 | +262,691 | 6.93 |
| 2025-11-28 | 5,037,867 | 4,603,118 | +434,749 | 5.42 |
| 2025-11-14 | 4,603,118 | 5,022,907 | -419,789 | 4.67 |
| 2025-10-31 | 5,022,907 | 4,811,176 | +211,731 | 5.52 |
| 2025-10-15 | 4,811,176 | 4,899,193 | -88,017 | 10.15 |
| 2025-09-30 | 4,899,193 | 4,882,056 | +17,137 | 8.19 |
| 2025-09-15 | 4,882,056 | 4,742,504 | +139,552 | 4.25 |
| 2025-08-29 | 4,742,504 | 4,777,364 | -34,860 | 9.62 |
| 2025-08-15 | 4,777,364 | 4,573,915 | +203,449 | 8.33 |
| 2025-07-31 | 4,573,915 | 3,982,298 | +591,617 | 4.92 |
| 2025-07-15 | 3,982,298 | 4,052,218 | -69,920 | 6.37 |
| 2025-06-30 | 4,052,218 | 4,388,732 | -336,514 | 5.02 |
Showing 1–23 of 23 settlements