SUPN · Supernus Pharmaceuticals, Inc.
$47.87
+0.45 (+0.95%)
At close · Jul 21
Market Cap
$2.78B
Shares
58.04M
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
80/100
Short interest 12.3% of shares — P93
Days to cover 7.0 — P90
Price vs VWAP +0.5% — P58
Short-volume trend +6.3% — P73
Short interest change +17.0% — P75
Worst FTD 0.06% of shares — P67
Peer-relative percentile rank across all stocks reporting short interest at the latest settlement date (2026-06-30). 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 |
|---|---|---|---|---|
| 2026-06-30 | 7,142,803 | 6,103,430 | +1,039,373 | 6.96 |
| 2026-06-15 | 6,103,430 | 5,418,515 | +684,915 | 10.12 |
| 2026-05-29 | 5,418,515 | 4,731,258 | +687,257 | 9.50 |
| 2026-05-15 | 4,731,258 | 4,721,234 | +10,024 | 5.29 |
| 2026-04-30 | 4,721,234 | 4,732,523 | -11,289 | 8.54 |
| 2026-04-15 | 4,732,523 | 4,532,867 | +199,656 | 9.31 |
| 2026-03-31 | 4,532,867 | 4,188,850 | +344,017 | 7.52 |
| 2026-03-13 | 4,188,850 | 4,081,384 | +107,466 | 6.51 |
| 2026-02-27 | 4,081,384 | 4,021,038 | +60,346 | 4.24 |
| 2026-02-13 | 4,021,038 | 3,990,080 | +30,958 | 5.70 |
| 2026-01-30 | 3,990,080 | 4,122,399 | -132,319 | 5.60 |
| 2026-01-15 | 4,122,399 | 4,384,311 | -261,912 | 6.55 |
| 2025-12-31 | 4,384,311 | 4,812,734 | -428,423 | 6.99 |
| 2025-12-15 | 4,812,734 | 4,994,703 | -181,969 | 8.14 |
| 2025-11-28 | 4,994,703 | 5,202,679 | -207,976 | 6.80 |
| 2025-11-14 | 5,202,679 | 4,870,017 | +332,662 | 3.68 |
| 2025-10-31 | 4,870,017 | 4,954,765 | -84,748 | 6.25 |
| 2025-10-15 | 4,954,765 | 5,186,700 | -231,935 | 6.24 |
| 2025-09-30 | 5,186,700 | 5,019,809 | +166,891 | 6.98 |
| 2025-09-15 | 5,019,809 | 4,801,288 | +218,521 | 8.23 |
| 2025-08-29 | 4,801,288 | 4,700,980 | +100,308 | 7.44 |
| 2025-08-15 | 4,700,980 | 5,080,993 | -380,013 | 3.69 |
| 2025-07-31 | 5,080,993 | 5,098,408 | -17,415 | 6.31 |
Showing 1–23 of 23 settlements
Key facts
CIK
1356576
CUSIP
868459108
13F (30d)
44 filings
43 filers
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