ZLAB · Zai Lab Ltd
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.”
Total shares sold short and not yet covered, reported to FINRA by broker-dealers twice a month. Each reading settles on the 15th and the last business day of the month and is published seven business days later — the next scheduled dates are listed at the top of the table. Days to cover divides the short position by average daily volume; a high value (above 5) can signal short-squeeze potential.
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-15). Weighted mean of the available factors (short interest 30%, days to cover 20%, price vs VWAP 15%, short-volume trend 15%, short-interest change 10%, fails-to-deliver 10%) plus catalyst boosts (price spike, volume surge, earnings within days), capped at +20 and clamped to 100.
Short Interest History
| Settlement Date | Current Position | Previous Position | Change | Days to Cover |
|---|---|---|---|---|
|
2026-08-14
Scheduled
FINRA publishes Aug 25
|
— | — | — | — |
|
2026-07-31
Scheduled
FINRA publishes Aug 11
|
— | — | — | — |
| 2026-07-15 | 6,351,893 | 8,154,038 | -1,802,145 | 7.49 |
| 2026-06-30 | 8,154,038 | 7,250,668 | +903,370 | 7.97 |
| 2026-06-15 | 7,250,668 | 6,532,695 | +717,973 | 6.63 |
| 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 |