Quantumsphere Acquisition Corp (QUMSU)
Sector: Blank Checks
Industry: Shell Companies
Quantumsphere Acquisition Corp. Units
-0.10%$10.42
CLOSED · Nov 3Prev close$10.43-0.10%Close$10.42
Mkt Cap$118.86M
Float8.29M
O/S11.41M
VOL200 sh
$ Vol$2K
RVOL3.64×
Inst Own-
Dilution
Historical Data
| Date | Open | High | Low | Close | Volume |
|---|---|---|---|---|---|
| Nov 2, 2026 | 10.43 | 10.43 | 10.43 | 10.43 | 5 |
| Oct 30, 2026 | 10.38 | 10.38 | 10.38 | 10.38 | 10 |
| Oct 29, 2026 | 10.45 | 10.45 | 10.39 | 10.39 | 35 |
| Oct 20, 2026 | 10.38 | 10.44 | 10.38 | 10.44 | 2 |
| Oct 16, 2026 | 10.40 | 10.40 | 10.40 | 10.40 | 27 |
| Oct 14, 2026 | 10.30 | 10.30 | 10.30 | 10.30 | 200 |
Analyst Coverage
No analyst coverage for this companyNo ratings, price targets, or covering firms on file.
Insider Trades
No insider transactions for this companyForeign private issuers and non-reporting entities don't file Form 4/5.
Shareholders
--
Institutional
(7)
--
Insiderⓘ
(0)
--
5%+ Owners
(0)
--
Unattributed (incl. retail)ⓘ
Top Shareholders
| Name | Shares | % | Source |
|---|---|---|---|
GABELLI & Co INVESTMENT ADVISERS, INC. | 67.7K | -- | 13F |
GABELLI FUNDS LLC | 57.3K | -- | 13F |
HRT FINANCIAL LP | 30.0K | -- | 13F |
Clear Street Group Inc. | 23.1K | -- | 13F |
JPMORGAN CHASE & CO | 10.0K | -- | 13F |
UBS Group AG | 479 | -- | 13F |
GLAZER CAPITAL, LLC | 221 | -- | 13F |
Sources: 13F
Insiders & Institutional Holders
About
Quantumsphere Acquisition Corporation is a blank check company formed to effect a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization, or similar business combination with one or more target businesses.
The company is not limited to any particular industry or geography for its targets.
Key Metrics
Market Cap$118.86M
Enterprise Value--
P/E Ratio--
Est. Net Cash/Share--
Institutional Ownership--
based on 11.41M shares outstanding
SectorFinancial Services
IndustryShell Companies
ExchangeNASDAQ
Country
US
USIPO DateJul 31, 2025
Shares Outstanding11.41M
Float8.29M
52-Week Range
$10.10$10.99
$10.42(36th percentile)
Volume
Average Daily Volume47
200 today vs 47 avg(+326%)
30d Avg
47
60d Avg
554
90d Avg
510
Earnings
Dividend History
No dividend history available
Compliance Status
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