TotalMarketCap

Gibraltar Industries

ROCKNasdaq United StatesIndustrialsSteel/Iron Ore

Market cap

$940.089 M

$31.67 -27.33%

Close of 6 Nov 2026

As of 6 Nov 2026, Gibraltar Industries (ROCK) has a market capitalization of $940.1M. Market cap measures the value of outstanding equity at market prices; company totals combine applicable share classes. Prices and market caps come from Nasdaq, with financial fundamentals from SEC filings. See sources and calculation details.

Revenue

$1.14B

#1449 by revenue

Earnings

-$44.4M

Loss-making

Shares outstanding

29,706,414

Latest filing cover page

P/E ratio

—

Cap ÷ net income

Steel/Iron Ore, ranked by market cap

All 26 →
  1. #13Worthington SteelWS$1.85B
  2. #14National SteelSID$1.03B
  3. #15Gibraltar IndustriesROCK$940.1M
  4. #16SunCoke EnergySXC$821.2M
  5. #17NWPX InfrastructureNWPX$793.8M

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Where these numbers come from

Share counts and financials for Gibraltar Industries are taken from its own SEC filings via EDGAR: public record, not an estimate. Market cap is shares outstanding multiplied by the latest close. Read the methodology.