NASDAQ · KEYYFinancialsBlank Checks

Keystone Acquisition Corp. Class A Ordinary Shares (KEYY)

$9.93−0.05%
Close Nov 4, 2026 · split-adjusted
Nov 4, 2026$9.93▲ 0.20% in range
Sep 14, 2026Low $9.91 · High $9.95Nov 4, 2026
What changed · written from our data
As of Nov 4, 2026

Keystone Acquisition closed at $9.93 on Nov 4, down 0.05%, within 0.2% of its lowest close since Sep 14. Volume of 10.3K shares was 0.10× its 20-day average (below normal).

Split-adjusted performance: +0.0% over one month.

Short interest was 1.2K shares at the Oct 15 settlement, down 5.2% from the prior report (0.0% of float, 1.0 days to cover).

Market cap$380.6M38.3M shares
Revenue · quarter——
Diluted EPS——
P/E · TTM—
Net margin—
Dividend yieldNone
Range since Sep 149.91 – 9.95−0.2% from high
Volume10.3K0.10× 20-day avg
Volatility · 60d—Annualised
Short % of float0.0%1.0 days to cover
Net cash—
Next earnings—Not scheduled
Split-adjusted performance
1W +0.1%1M 0.0%3M —6M —YTD —1Y —3Y —5Y —

Earnings reactions

History →

No reported quarters with price history yet.

Rank within Blank Checks

Percentile among 155 companies (100 = best)

6-month momentum—
Revenue growth—
Net margin—
Value (low P/E)—
Size86

Industry medians: 6-month return +1.8%, revenue growth −4.4%, net margin −34.2%, P/E 41.3×.

Short interest

Details →
Shares short1.2K−5.2% vs prior
Days to cover1.0Settled Oct 15
% of float0.0%
Short vol. 10d14.3%of daily volume

Closest peers by size in Blank Checks

CompanyPriceToday6MRev. growthNet marginP/EMkt cap
KEYYKeystone Acquisition$9.93−0.05%————$380.6M
YICCYorkville International Capital$9.860.00%————$378.0MCompare
ALOVAldabra 4 Liquidity Opportunity Vehicle$10.01+0.10%————$375.6MCompare
MZYXMOZAYYX Acquisition$9.99−0.10%————$374.6MCompare
GUACBerto Acquisition Corp. II$9.87−0.30%————$388.8MCompare
ALFCenturion Acquisition$10.820.00%−0.1%——37.2$388.8MCompare
GIWGigCapital8$10.190.00%+1.8%———$371.7MCompare
RDAGRepublic Digital Acquisition$10.470.00%+2.1%———$392.6MCompare
SDHISiddhi Acquisition$10.59−0.09%+2.1%———$368.9MCompare

News about Keystone Acquisition

All news →

No recent articles focused on Keystone Acquisition.

Quick answers

What does Keystone Acquisition do?
Keystone Acquisition Corp is a blank check company formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses.
What is KEYY's market cap?
$380.65M, based on the Nov 4 close of $9.93.
How much of KEYY is sold short?
1.2K shares, 0.0% of float, as of Oct 15, 2026.
What sector is KEYY in?
Financials, in the Blank Checks industry.

About Keystone Acquisition

Keystone Acquisition Corp is a blank check company formed for the purpose of effecting a merger, amalgamation, share exchange, asset acquisition, share purchase, reorganization or similar business combination with one or more businesses.

HQ: New York, NYListed Jun 22, 2026

Sources: Massive / Polygon daily aggregates (split-adjusted) · SEC filings via Massive · FINRA settlements via Massive · Financial Modeling Prep. Figures are dated where shown; research is informational, not investment advice. Methodology