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Gibraltar Industries ROCK

US equityMarket cap rank #3118
$40.32 +$0.17 (+0.42%)
Market closed · Oct 5, 10:20 pm ET · Last extended-hours $40.32 0.00%
Open$40.05
Prev close$40.15
Day range$39.50 – $41.41
Volume303.2K
Market cap$1.20B
P/E (TTM)–
Dividend yield–

Ownership & positioning

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

Short interest6.51% of floatDays to cover 7.0 · as of 15 Sep 2026
Short-sale volume share23.2%5-day average of daily volume

Short-sale volume as % of daily volume

12%18%24%29%Sep '26Sep '26Oct '26

Reported short interest has risen from 4.27% to 6.51% 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 1,931,895 6.5% 7.0
31 Aug 2026 1,671,883 5.6% 8.7
14 Aug 2026 1,442,451 4.9% 3.9
31 Jul 2026 1,412,139 4.8% 4.0
15 Jul 2026 1,374,431 4.6% 4.9
30 Jun 2026 1,267,509 4.3% 2.8

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