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Twenty One Capital XXI

US equityMarket cap rank #2679
$6.68 +$0.08 (+1.21%)
Market closed · Oct 6, 4:10 am ET · Last extended-hours $6.74 +0.89%
Open$6.67
Prev close$6.60
Day range$6.61 – $6.88
Volume1.19M
Market cap$2.32B
P/E (TTM)–
Dividend yield–

Ownership & positioning

Who holds it, who is betting against it, and where the big money is moving

Institutional ownership75.0%+0.04 pts vs. prior quarter
Institutions holding79+1 vs. prior quarter
Insider trades (recent)8 buys / 3 sellsNet buying
Short interest1.79% of floatDays to cover 3.5 · as of 15 Sep 2026
Short-sale volume share27.7%5-day average of daily volume

Short-sale volume as % of daily volume

21%26%31%36%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: +$4.69M (14 inflow days, 6 outflow days).

The five largest holders on file together own 69.2% of shares outstanding.

Largest holders

  • Tether Holdings, S.A. de C.V.45.10%
  • iFinex Inc. (BVI)17.14%
  • Morgan Stanley Investment Management Inc.3.43%
  • BlackRock1.81%
  • Vanguard Capital Management, LLC1.69%
  • Cantor Fitzgerald Asset Management1.25%
  • Geode Capital Management, LLC1.17%
  • Charles Schwab Investment Management0.79%

By investor type

  • Private Company62.34%
  • Mutual Fund11.97%
  • Hedge Fund0.50%
  • Public Company0.17%
  • Individual/Insider0.03%
  • Family Office/Trust0.02%

Reported short interest has risen from 1.31% to 1.79% of float over the last 6 biweekly reports (30 Jun 2026 to 15 Sep 2026).

Short interest, by report

Report dateShares short% of floatDays to cover
15 Sep 2026 6,215,844 1.8% 3.5
31 Aug 2026 6,334,551 1.8% 3.8
14 Aug 2026 5,881,799 1.7% 4.6
31 Jul 2026 7,121,674 2.1% 3.5
15 Jul 2026 4,661,388 1.3% 4.9
30 Jun 2026 4,558,193 1.3% 3.0

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