QUMS · Quantumsphere Acquisition Corp
$10.33
+0.01 (+0.10%)
At close · Aug 28
Going-concern doubt
— flagged Aug 14, 2026
Substantial doubt about the company's ability to continue as a going concern.
“management has determined that these conditions raise substantial doubt about the Company's ability to continue as a going concern until the earlier of the consummation of the Business Combination or the date the Company is required to liquidate.”View the 10-Q filed Aug 14, 2026
Market Cap
$117.72M
Shares
11.41M
Weekly off-exchange (dark pool / OTC) trading volume reported to FINRA under its OTC/ATS Transparency data. ATS volume is executed on alternating trading systems (dark pools); non-ATS OTC is other over-the-counter dealer volume. The off-exchange share is total off-exchange volume as a percentage of consolidated weekly trading volume for the same Monday–Friday week.
Off-Exchange Volume History
| Week Start | ATS Volume | Non-ATS OTC Volume | Total Off-Exchange | % of FINRA Weekly Volume |
|---|---|---|---|---|
| 2026-07-20 | 4,710 | 32,097 | 36,807 | 24.7% |
| 2026-07-13 | 301 | 10,055 | 10,356 | 80.3% |
| 2026-07-06 | 692 | 30,432 | 31,124 | 56.5% |
| 2026-06-29 | 101 | 25,144 | 25,245 | 95.6% |
| 2026-06-22 | 1 | 128 | 129 | 100.0% |
| 2026-06-15 | 101 | 775,068 | 775,169 | 94.4% |
| 2026-06-08 | 83,479 | 25,301 | 108,780 | 67.0% |
| 2026-06-01 | 824 | 23 | 847 | 2.7% |
| 2026-05-25 | 5,050 | 20,007 | 25,057 | 56.8% |
| 2026-05-18 | 100 | 0 | 100 | 50.0% |
| 2026-05-11 | 0 | 5 | 5 | 0.0% |
| 2026-05-04 | 5,000 | 42,745 | 47,745 | 94.2% |
| 2026-04-27 | 8 | 1,493 | 1,501 | 33.4% |
| 2026-04-20 | 38,099 | 268 | 38,367 | 95.0% |
| 2026-04-13 | 800 | 115 | 915 | 7.4% |
| 2026-04-06 | 100 | 10 | 110 | 0.5% |
| 2026-03-30 | 29,699 | 2,831 | 32,530 | 55.7% |
| 2026-03-23 | 21,633 | 27,661 | 49,294 | 60.6% |
| 2026-03-16 | 15,888 | 12,106 | 27,994 | 40.9% |
| 2026-03-09 | 39,812 | 333 | 40,145 | 49.6% |
| 2026-03-02 | 9,701 | 2,137 | 11,838 | 20.2% |
| 2026-02-23 | 0 | 21,214 | 21,214 | 43.6% |
| 2026-02-16 | 1 | 50,000 | 50,001 | 69.2% |
| 2026-02-09 | 0 | 50,102 | 50,102 | 66.9% |
| 2026-02-02 | 806 | 100,019 | 100,825 | 47.9% |
| 2026-01-26 | 600 | 2,011 | 2,611 | 16.0% |
| 2026-01-19 | 846 | 8,422 | 9,268 | 31.2% |
| 2026-01-12 | 0 | 10,126 | 10,126 | 76.1% |
| 2026-01-05 | 0 | 50,032 | 50,032 | 72.6% |
| 2025-12-29 | 0 | 4 | 4 | 0.0% |
| 2025-12-22 | 1 | 8 | 9 | — |
| 2025-12-15 | 0 | 199,010 | 199,010 | 97.6% |
| 2025-12-08 | 19 | 50,035 | 50,054 | 99.9% |
| 2025-12-01 | 50 | 100,189 | 100,239 | 100.0% |
| 2025-11-24 | 17 | 200,002 | 200,019 | 100.0% |
| 2025-11-17 | 3 | 30,349 | 30,352 | 61.1% |
| 2025-11-10 | 2 | 6 | 8 | — |
| 2025-11-03 | 104,714 | 231 | 104,945 | 84.5% |
| 2025-10-27 | 96,983 | 687 | 97,670 | 33.1% |
| 2025-10-20 | 0 | 113 | 113 | 0.8% |
| 2025-10-13 | 326,315 | 300,364 | 626,679 | 81.2% |
| 2025-10-06 | 933 | 279,066 | 279,999 | 72.4% |
| 2025-09-29 | 3,719 | 1,499,025 | 1,502,744 | 85.0% |
Showing 1–43 of 43 weeks
Key facts
CIK
2070900
CUSIP
G7387B106
13F (30d)
35 filings
34 filers