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Atkore ATKR

US equityMarket cap rank #2428Electrical Equipment & Parts
$94.78 +$0.16 (+0.17%)
Pre-market · Oct 6, 7:00 am ET · After hours $94.78 0.00%
Open$94.75
Prev close$94.62
Day range$94.75 – $94.81
Volume599.9K
Market cap$3.20B
P/E (TTM)–
Dividend yield1.39%

Ownership & positioning

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

Institutional ownership98.9%0.00 pts vs. prior quarter
Institutions holding401+1 vs. prior quarter
Insider trades (recent)46 buys / 4 sellsNet buying
Short interest3.93% of floatDays to cover 1.6 · as of 15 Sep 2026
Short-sale volume share18.6%5-day average of daily volume

Short-sale volume as % of daily volume

6%12%19%26%Sep '26Sep '26Oct '26

Large-order net flow, last 20 sessions

Net of large-order buying minus selling, in USD. Over this window: −$108.92M (4 inflow days, 16 outflow days).

The five largest holders on file together own 31.0% of shares outstanding.

Largest holders

  • BlackRock9.23%
  • Vanguard Portfolio Management, LLC6.28%
  • American Century Investment Management5.26%
  • Vanguard Capital Management, LLC5.18%
  • Gates Capital Management, Inc.5.06%
  • Dimensional Fund Advisors3.85%
  • LSV Asset Management3.24%
  • State Street Global Advisors2.68%

By investor type

  • Mutual Fund74.49%
  • Hedge Fund15.60%
  • Public Company3.93%
  • Government Pension Fund2.40%
  • Private Company2.14%
  • Individual/Insider0.78%
  • Insurance Company0.23%
  • Family Office/Trust0.11%

Reported short interest has held roughly steady near 3.93% 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 1,325,633 3.9% 1.6
31 Aug 2026 1,135,474 3.4% 2.1
14 Aug 2026 1,195,442 3.5% 1.0
31 Jul 2026 1,215,190 3.6% 3.1
15 Jul 2026 1,245,091 3.7% 4.6
30 Jun 2026 1,326,065 3.9% 3.1

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