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Alaska Air ALK

US equityMarket cap rank #2211
$39.19 −$0.34 (-0.86%)
Market closed · Oct 6, 12:30 am ET · Last extended-hours $39.35 +0.41%
Open$39.50
Prev close$39.53
Day range$39.12 – $39.90
Volume2.88M
Market cap$4.37B
P/E (TTM)–
Dividend yield–

Ownership & positioning

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

Institutional ownership92.7%-0.01 pts vs. prior quarter
Institutions holding550-1 vs. prior quarter
Insider trades (recent)27 buys / 21 sellsNet buying
Short interest10.32% of floatDays to cover 5.1 · as of 15 Sep 2026
Short-sale volume share22.4%5-day average of daily volume

Short-sale volume as % of daily volume

14%19%23%27%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$31.02M (6 inflow days, 14 outflow days).

The five largest holders on file together own 30.5% of shares outstanding.

Largest holders

  • BlackRock10.41%
  • Dimensional Fund Advisors5.81%
  • Vanguard Capital Management, LLC5.09%
  • American Century Investment Management4.77%
  • Vanguard Portfolio Management, LLC4.44%
  • Capital Research3.58%
  • State Street Global Advisors3.19%
  • Frontier Capital Management3.03%

By investor type

  • Mutual Fund72.29%
  • Hedge Fund10.85%
  • Public Company4.05%
  • Private Company3.57%
  • Government Pension Fund1.30%
  • Individual/Insider0.59%
  • Family Office/Trust0.37%
  • Insurance Company0.08%

Reported short interest has fallen from 10.97% to 10.32% 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 11,512,393 10.3% 5.1
31 Aug 2026 11,286,829 10.1% 4.6
14 Aug 2026 10,826,720 9.7% 4.9
31 Jul 2026 10,738,019 9.6% 3.2
15 Jul 2026 10,966,796 9.8% 3.8
30 Jun 2026 12,221,936 11.0% 3.5

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