QUMSR
Quantumsphere Acquisition Corp. Rights
stockNASDAQRight
At CloseOct 9, 2026 3:59:30 PM EDT
0.09USD+28.940%(+0.02)102,468
Pre-marketOct 12, 2026 8:56:30 AM EDT
0.13USD+44.444%(+0.04)
After-hoursOct 12, 2026 4:16:18 PM EDT
0.16USD+72.889%(+0.07)
As of 2026-09-30, there were 4,876 shares short with a short interest of 0.06%.
QUMSR Short Interest - Official
QUMSR Short Position Change - Official
QUMSR Short Interest - Official
| Settlement Date1 | Short Interest % | Short Position | Days to Cover2 | Short Position Change | Short Position Change % | Shares Out | Shares Float |
|---|---|---|---|---|---|---|---|
| 2026-09-30 | 0.06 | 4,876 | 10.67 | -571 | -10.48 | 0 | 8,520,056 |
| 2026-09-15 | 0.06 | 5,447 | 1.00 | -1,251 | -18.68 | 0 | 8,520,056 |
| 2026-08-31 | 0.08 | 6,698 | 21.75 | -306 | -4.37 | 0 | 8,520,056 |
| 2026-08-14 | 0.08 | 7,004 | 1.00 | -2,728 | -28.03 | 0 | 8,520,056 |
| 2026-07-31 | 0.11 | 9,732 | 47.71 | -819 | -7.76 | 0 | 8,520,056 |
| 2026-07-15 | 0.12 | 10,551 | 1.27 | +680 | +6.89 | 0 | 8,520,056 |
| 2026-06-30 | 0.11 | 9,871 | 6.32 | -2,465 | -19.98 | 0 | 8,886,647 |
| 2026-06-15 | 0.15 | 12,336 | 72.56 | -254 | -2.02 | 0 | 8,282,711 |
| 2026-05-15 | 0.15 | 12,590 | 331.32 | -807 | -6.02 | 0 | 8,282,711 |
| 2026-04-30 | 0.15 | 13,397 | 13.36 | -343 | -2.50 | 0 | 8,886,647 |
| 2026-04-15 | 0.15 | 13,740 | 5.55 | +6,317 | +85.10 | 0 | 8,886,647 |
| 2026-03-31 | 0.08 | 7,423 | 4.26 | +1,180 | +18.90 | 0 | 8,886,647 |
| 2026-03-13 | 0.07 | 6,243 | 16.65 | +18 | +0.29 | 0 | 8,886,647 |
| 2026-02-27 | 0.07 | 6,225 | 1.00 | -424 | -6.38 | 0 | 8,886,647 |
| 2026-02-13 | 0.07 | 6,649 | 3.68 | -79 | -1.17 | 0 | 8,886,647 |
| 2026-01-30 | 0.08 | 6,728 | 1.27 | -5 | -0.07 | 0 | 8,886,647 |
| 2026-01-15 | 0.08 | 6,733 | 4.40 | -960 | -12.48 | 0 | 8,886,647 |
| 2025-12-31 | 0.09 | 7,693 | 1.00 | -4,816 | -38.50 | 0 | 8,886,647 |
| 2025-12-15 | 0.14 | 12,509 | 4.31 | +6,356 | +103.30 | 0 | 8,886,647 |
| 2025-11-28 | 0.07 | 6,153 | 1.00 | -3,700 | -37.55 | 0 | 8,886,647 |
| 2025-11-14 | 0.11 | 9,853 | 1.00 | -2,727 | -21.68 | 0 | 8,886,647 |
| 2025-10-31 | 0.14 | 12,580 | 2.00 | -35,649 | -73.92 | 0 | 8,886,647 |
| 2025-10-15 | 0.54 | 48,229 | 1.00 | 0 | 0.00 | 0 | 8,886,647 |
Historical data is split-adjusted.
1 Data from Finra. Finra publishes an updated file every two weeks.
2 Days to Cover (DTC) is also called Short Ratio. This is the Short Position / Average Daily Trading Volume.