MAPS · Prostar Holdings Inc. · Short Interest
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Aggregate short positions in this Prostar Holdings Inc. listing as reported to CIRO, the Canadian Investment Regulatory Organization, as of the 15th and the last day of each month.
Short positions
Aggregate short positions in this listing as reported to CIRO, as of the 15th and the last day of each month and published a few days later. Capture began with the reports CIRO still served at its first read, about a year back, and grows twice a month. Net change is CIRO's change from its previous report. Average daily volume and days to cover come from this listing's own daily volume over the trading days since the previous as-of date, and are blank when no volume is held for that period. Short traded volume is the shares sold short on every marketplace CIRO monitors over the period ending on that date, with its percentage of all shares traded there, with CIRO's later corrections to short volume applied. Both are blank when the report for that period is not held or states no short sale in this listing.
No position in this listing was captured from CIRO's report as of 2026-10-31.
| As of | Short position (shares) | Net change | Avg daily volume | Days to cover | Short traded volume | Short % of volume |
|---|---|---|---|---|---|---|
| 2026-10-15 | 5,487 | +5,467 | 10,570 | 0.52 | ||
| 2026-09-30 | 20 | -2,106 | 2,400 | 0.01 | 1,000 | 0.864% |
| 2026-09-15 | 2,126 | -13,792 | 1,200 | 1.77 | ||
| 2026-08-31 | 15,918 | +14,843 | 23,218 | 0.69 | 10,000 | 2.529% |
| 2026-08-15 | 1,075 | -8,664 | 27,600 | 0.04 | 1,060 | 0.327% |
| 2026-07-31 | 9,739 | -9,196 | 24,450 | 0.40 | 12,475 | 1.872% |
| 2026-07-15 | 18,935 | +7,436 | 71,240 | 0.27 | 5,000 | 0.418% |
| 2026-06-30 | 11,499 | +6,965 | 25,591 | 0.45 | ||
| 2026-06-15 | 4,534 | -624 | 44,873 | 0.10 | 12,500 | 1.955% |
| 2026-05-31 | 5,158 | -23,358 | 12,044 | 0.43 | ||
| 2026-05-15 | 28,516 | +26,441 | 17,527 | 1.63 | 12,500 | 4.491% |
| 2026-04-30 | 2,075 | -6,735 | 27,782 | 0.07 | ||
| 2026-04-15 | 8,810 | +5,522 | 10,900 | 0.81 | ||
| 2026-03-31 | 3,288 | -13,274 | 18,683 | 0.18 | ||
| 2026-03-15 | 16,562 | +16,545 | 9,470 | 1.75 | ||
| 2026-02-28 | 17 | -5,155 | 23,389 | 0.00 | ||
| 2026-02-15 | 5,172 | -43,828 | 3,580 | 1.44 | ||
| 2026-01-31 | 49,000 | +38,475 | 11,191 | 4.38 | ||
| 2026-01-15 | 10,525 | +4,439 | 25,390 | 0.41 | ||
| 2025-12-31 | 6,086 | -10,669 | 16,590 | 0.37 | ||
| 2025-12-15 | 16,755 | +11,488 | 53,336 | 0.31 | ||
| 2025-11-30 | 5,267 | +2,946 | 20,400 | 0.26 | ||
| 2025-11-15 | 2,321 | +2,189 | 22,350 | 0.10 | ||
| 2025-10-31 | 132 | -55,843 | 54,033 | 0.00 |
24 reports between 2025-10-31 and 2026-10-15.