JAZZ · Jazz Pharmaceuticals plc
$244.96
-0.89 (-0.36%)
At close · Aug 14
Market Cap
$15.90B
Shares
64.91M
Shares sold short and not yet covered, reported twice monthly. Days to cover is the reported short position divided by average daily volume.
Model estimate
Expected Aug 14 short interest
as of Aug 14
3,455,036
+3.0% vs reported
Short Squeeze Score
62/100
Short interest 5.2% of shares — P75
Days to cover 5.3 — P70
Price vs VWAP +1.8% — P56
Short-volume trend +4.5% — P68
Short interest change -11.7% — P25
Worst FTD 0.01% of shares — P48
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-07-31). 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 |
|---|---|---|---|---|
|
2026-08-31
Scheduled
FINRA publishes Sep 10
|
— | — | — | — |
|
2026-08-14
Scheduled
FINRA publishes Aug 25
|
— | — | — | — |
| 2026-07-31 | 3,355,182 | 3,801,863 | -446,681 | 5.33 |
| 2026-07-15 | 3,801,863 | 3,500,138 | +301,725 | 4.83 |
| 2026-06-30 | 3,500,138 | 3,941,396 | -441,258 | 3.75 |
| 2026-06-15 | 3,941,396 | 4,290,867 | -349,471 | 4.24 |
| 2026-05-29 | 4,290,867 | 4,849,332 | -558,465 | 5.09 |
| 2026-05-15 | 4,849,332 | 5,090,611 | -241,279 | 4.69 |
| 2026-04-30 | 5,090,611 | 5,240,459 | -149,848 | 5.33 |
| 2026-04-15 | 5,240,459 | 6,526,407 | -1,285,948 | 5.97 |
| 2026-03-31 | 6,526,407 | 6,164,020 | +362,387 | 7.99 |
| 2026-03-13 | 6,164,020 | 5,997,312 | +166,708 | 7.64 |
| 2026-02-27 | 5,997,312 | 6,044,810 | -47,498 | 4.52 |
| 2026-02-13 | 6,044,810 | 5,663,941 | +380,869 | 9.14 |
| 2026-01-30 | 5,663,941 | 5,352,497 | +311,444 | 6.33 |
| 2026-01-15 | 5,352,497 | 5,363,382 | -10,885 | 3.58 |
| 2025-12-31 | 5,363,382 | 5,042,462 | +320,920 | 6.80 |
| 2025-12-15 | 5,042,462 | 4,974,908 | +67,554 | 4.72 |
| 2025-11-28 | 4,974,908 | 4,839,654 | +135,254 | 2.24 |
| 2025-11-14 | 4,839,654 | 5,116,514 | -276,860 | 5.30 |
| 2025-10-31 | 5,116,514 | 4,689,812 | +426,702 | 8.36 |
| 2025-10-15 | 4,689,812 | 4,729,765 | -39,953 | 6.68 |
| 2025-09-30 | 4,729,765 | 5,302,576 | -572,811 | 6.50 |
| 2025-09-15 | 5,302,576 | 5,714,048 | -411,472 | 7.78 |
| 2025-08-29 | 5,714,048 | 5,623,440 | +90,608 | 7.77 |
Showing 1–23 of 23 settlements
Key facts
CIK
1232524
CUSIP
G50871105
13F (30d)
593 filings
570 filers
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Investor relations