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 →- #13Worthington SteelWS$1.85B
- #14National SteelSID$1.03B
- #15Gibraltar IndustriesROCK$940.1M
- #16SunCoke EnergySXC$821.2M
- #17NWPX InfrastructureNWPX$793.8M
What if Gibraltar Industries were worth as much as…
Open the what-if tool →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.