PTGX · Protagonist Therapeutics, Inc
$138.31
+4.04 (+3.01%)
At close · Jul 21
Market Cap
$8.89B
Shares
64.31M
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
74/100
Short interest 12.0% of shares — P92
Days to cover 7.2 — P91
Price vs VWAP +21.0% — P95
Short-volume trend -10.6% — P18
Short interest change -0.5% — P43
Worst FTD 0.09% of shares — P74
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 | 7,691,347 | 7,728,416 | -37,069 | 7.22 |
| 2026-06-15 | 7,728,416 | 7,410,849 | +317,567 | 11.59 |
| 2026-05-29 | 7,410,849 | 7,293,819 | +117,030 | 16.81 |
| 2026-05-15 | 7,293,819 | 7,540,996 | -247,177 | 12.76 |
| 2026-04-30 | 7,540,996 | 8,397,278 | -856,282 | 11.88 |
| 2026-04-15 | 8,397,278 | 8,626,880 | -229,602 | 11.61 |
| 2026-03-31 | 8,626,880 | 8,060,991 | +565,889 | 7.64 |
| 2026-03-13 | 8,060,991 | 8,192,998 | -132,007 | 10.88 |
| 2026-02-27 | 8,192,998 | 8,443,732 | -250,734 | 16.48 |
| 2026-02-13 | 8,443,732 | 8,132,629 | +311,103 | 13.31 |
| 2026-01-30 | 8,132,629 | 8,297,775 | -165,146 | 10.56 |
| 2026-01-15 | 8,297,775 | 7,292,034 | +1,005,741 | 8.75 |
| 2025-12-31 | 7,292,034 | 6,539,025 | +753,009 | 9.51 |
| 2025-12-15 | 6,539,025 | 5,883,017 | +656,008 | 6.01 |
| 2025-11-28 | 5,883,017 | 5,582,326 | +300,691 | 7.07 |
| 2025-11-14 | 5,582,326 | 5,465,729 | +116,597 | 5.85 |
| 2025-10-31 | 5,465,729 | 6,312,028 | -846,299 | 5.60 |
| 2025-10-15 | 6,312,028 | 6,641,782 | -329,754 | 3.26 |
| 2025-09-30 | 6,641,782 | 6,659,476 | -17,694 | 5.62 |
| 2025-09-15 | 6,659,476 | 6,846,871 | -187,395 | 5.79 |
| 2025-08-29 | 6,846,871 | 6,310,889 | +535,982 | 9.96 |
| 2025-08-15 | 6,310,889 | 5,757,412 | +553,477 | 9.98 |
| 2025-07-31 | 5,757,412 | 6,183,934 | -426,522 | 8.87 |
Showing 1–23 of 23 settlements
Key facts
CIK
1377121
CUSIP
74366E102
13F (30d)
34 filings
34 filers
Visit website
Investor relations