PESI · Perma Fix Environmental Services Inc
Substantial doubt about the company's ability to continue as a going concern.
“These conditions and events, when considered in the aggregate, raise substantial doubt about the Company's ability to continue as a going concern within one year after the date these financial statements are issued.”View the 10-Q filed May 7, 2026
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 | 2,315,207 | 1,736,470 | +578,737 | 5.67 |
| 2026-06-30 | 1,736,470 | 1,930,478 | -194,008 | 4.47 |
| 2026-06-15 | 1,930,478 | 1,491,682 | +438,796 | 10.41 |
| 2026-05-29 | 1,491,682 | 1,506,247 | -14,565 | 5.95 |
| 2026-05-15 | 1,506,247 | 1,389,786 | +116,461 | 4.55 |
| 2026-04-30 | 1,389,786 | 1,333,669 | +56,117 | 13.33 |
| 2026-04-15 | 1,333,669 | 1,465,706 | -132,037 | 11.40 |
| 2026-03-31 | 1,465,706 | 1,204,860 | +260,846 | 5.48 |
| 2026-03-13 | 1,204,860 | 1,141,713 | +63,147 | 11.16 |
| 2026-02-27 | 1,141,713 | 1,200,709 | -58,996 | 8.48 |
| 2026-02-13 | 1,200,709 | 1,305,431 | -104,722 | 8.06 |
| 2026-01-30 | 1,305,431 | 1,378,088 | -72,657 | 9.22 |
| 2026-01-15 | 1,378,088 | 1,387,188 | -9,100 | 16.74 |
| 2025-12-31 | 1,387,188 | 1,522,357 | -135,169 | 13.28 |
| 2025-12-15 | 1,522,357 | 1,514,136 | +8,221 | 15.76 |
| 2025-11-28 | 1,514,136 | 1,445,155 | +68,981 | 14.69 |
| 2025-11-14 | 1,445,155 | 1,503,147 | -57,992 | 5.31 |
| 2025-10-31 | 1,503,147 | 1,552,495 | -49,348 | 7.46 |
| 2025-10-15 | 1,552,495 | 1,519,702 | +32,793 | 7.31 |
| 2025-09-30 | 1,519,702 | 1,386,914 | +132,788 | 5.96 |
| 2025-09-15 | 1,386,914 | 1,289,798 | +97,116 | 3.10 |
| 2025-08-29 | 1,289,798 | 1,327,196 | -37,398 | 13.18 |
| 2025-08-15 | 1,327,196 | 1,295,941 | +31,255 | 13.15 |
| 2025-07-31 | 1,295,941 | 1,201,346 | +94,595 | 7.75 |