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Comcast CMCSA

US equityMarket cap rank #209Telecom ServicesStreaming Services
$22.24
−$0.31 (-1.37%)
Market open · Sep 24, 2:00 pm ET
After hours $22.57 +0.09%
Open$22.69
Prev close$22.55
Day range$22.02 – $22.81
Volume14.98M
Market cap$78.92B
P/E (TTM)7.1
Dividend yield5.94%

Ownership & positioning

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

Institutional ownership90.5%-0.15 pts vs. prior quarter
Institutions holding2,233-13 vs. prior quarter
Insider trades (recent)6 buys / 3 sellsNet buying
Short interest2.34% of floatDays to cover 4.1 · as of 31 Aug 2026
Short-sale volume share16.8%5-day average of daily volume

Short-sale volume as % of daily volume

10%16%22%29%Aug '26Sep '26Sep '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$72.11M (6 inflow days, 14 outflow days).

Largest holders

  • BlackRock8.83%
  • Vanguard Capital Management, LLC7.12%
  • Capital Research6.40%
  • State Street Global Advisors5.50%
  • Charles Schwab Investment Management3.75%

By investor type

  • Mutual Fund76.01%
  • Public Company4.18%
  • Government Pension Fund2.46%
  • Hedge Fund2.45%
  • Sovereign Wealth Fund2.23%
  • Private Company2.07%
  • Individual/Insider0.94%
  • Insurance Company0.42%
Institutional holders2,233
Institutional ownership90.5%

Insider activity

Total transactions16
Bought6
Sold3

Short interest

Report dateShares short% of floatDays to cover
31 Aug 2026 82,965,352 2.3% 4.1
14 Aug 2026 75,479,151 2.1% 3.1
31 Jul 2026 72,592,374 2.0% 2.0
15 Jul 2026 85,090,590 2.4% 2.6
30 Jun 2026 88,032,735 2.5% 1.7
15 Jun 2026 89,134,254 2.5% 3.0
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