PRTA · Prothena Corp Public Ltd Co · Short Volume
$8.38
-0.40 (-4.56%)
At close · Sep 30
Return incl. dividend (before tax)
Market Cap
$425.58M
Shares
51.34M
Volume · Sep 30
634.78K
Avg daily vol (3M)
469.92K
Daily short-sale volume published by FINRA from its trade-reporting facilities. It measures how many shares were sold short each day as a share of total volume — a daily flow, not the total outstanding short position.
Short Volume
| Date | Short Volume | Short Exempt | Total Volume | Short % |
|---|---|---|---|---|
| 2026-09-30 | 108,530 | 0 | 200,607 | 54.1% |
| 2026-09-29 | 215,374 | 0 | 269,951 | 79.8% |
| 2026-09-28 | 174,199 | 0 | 219,422 | 79.4% |
| 2026-09-25 | 105,215 | 0 | 149,590 | 70.3% |
| 2026-09-24 | 123,420 | 0 | 164,781 | 74.9% |
| 2026-09-23 | 97,983 | 0 | 122,703 | 79.9% |
| 2026-09-22 | 69,105 | 0 | 114,804 | 60.2% |
| 2026-09-21 | 69,944 | 1,796 | 130,589 | 53.6% |
| 2026-09-18 | 186,247 | 402 | 231,744 | 80.4% |
| 2026-09-17 | 99,659 | 0 | 134,477 | 74.1% |
| 2026-09-16 | 97,894 | 44 | 157,795 | 62.0% |
| 2026-09-15 | 72,453 | 0 | 95,487 | 75.9% |
| 2026-09-14 | 70,245 | 0 | 103,920 | 67.6% |
| 2026-09-11 | 72,360 | 0 | 157,840 | 45.8% |
| 2026-09-10 | 53,342 | 0 | 72,023 | 74.1% |
| 2026-09-09 | 53,389 | 0 | 66,423 | 80.4% |
| 2026-09-08 | 44,950 | 0 | 74,105 | 60.7% |
| 2026-09-04 | 65,596 | 0 | 114,820 | 57.1% |
| 2026-09-03 | 58,285 | 0 | 97,268 | 59.9% |
| 2026-09-02 | 67,522 | 0 | 76,753 | 88.0% |
| 2026-09-01 | 64,052 | 0 | 86,494 | 74.1% |
| 2026-08-31 | 47,215 | 0 | 69,156 | 68.3% |
| 2026-08-28 | 100,297 | 0 | 134,567 | 74.5% |
| 2026-08-27 | 52,060 | 0 | 129,053 | 40.3% |
| 2026-08-26 | 35,283 | 0 | 103,770 | 34.0% |
| 2026-08-25 | 43,072 | 0 | 110,022 | 39.1% |
| 2026-08-24 | 35,543 | 0 | 78,643 | 45.2% |
| 2026-08-21 | 61,034 | 0 | 117,746 | 51.8% |
| 2026-08-20 | 97,619 | 0 | 114,904 | 85.0% |
| 2026-08-19 | 50,947 | 0 | 103,999 | 49.0% |
| 2026-08-18 | 41,363 | 0 | 68,590 | 60.3% |
| 2026-08-17 | 77,256 | 0 | 124,074 | 62.3% |
| 2026-08-14 | 78,456 | 0 | 103,332 | 75.9% |
| 2026-08-13 | 68,418 | 0 | 101,894 | 67.1% |
| 2026-08-12 | 48,135 | 0 | 77,688 | 62.0% |
| 2026-08-11 | 96,371 | 500 | 162,627 | 59.3% |
| 2026-08-10 | 179,242 | 0 | 261,898 | 68.4% |
| 2026-08-07 | 84,540 | 0 | 118,095 | 71.6% |
| 2026-08-06 | 94,265 | 700 | 134,995 | 69.8% |
| 2026-08-05 | 74,431 | 28 | 122,111 | 61.0% |
| 2026-08-04 | 65,017 | 0 | 90,587 | 71.8% |
| 2026-08-03 | 112,361 | 0 | 155,916 | 72.1% |
| 2026-07-31 | 140,967 | 0 | 180,066 | 78.3% |
| 2026-07-30 | 96,250 | 0 | 143,591 | 67.0% |
| 2026-07-29 | 83,779 | 0 | 159,944 | 52.4% |
| 2026-07-28 | 135,134 | 100 | 269,662 | 50.1% |
| 2026-07-27 | 130,898 | 0 | 191,995 | 68.2% |
| 2026-07-24 | 101,166 | 0 | 149,813 | 67.5% |
| 2026-07-23 | 84,883 | 0 | 151,392 | 56.1% |
| 2026-07-22 | 98,939 | 709 | 157,098 | 63.0% |
Showing 1–50 of 64 days