← Back to ROCKPortrait, one to two pages. Turn on “background graphics” in the print dialog to keep the table rules.

SPZCOGIBRALTAR INDUSTRIES, INC. · ROCKData at close 2026-07-30

Materials · Steel Works, Blast Furnaces & Rolling & Finishing Mills · Nasdaq · CIK 912562 · FYE Dec 31 · Prices AT CLOSE 2026-07-30 (USD) — end-of-day, never a live or intraday quote

Last $42.87Day −0.53%Mkt cap $1.3B1Y −35.7%Off 52W high −42.9%Vol (1Y) 51.2%

Price2023-07-31 → 2026-07-30

ROCK close: $64.7 on 2023-07-31 to $42.9 on 2026-07-30.

Daily closing price, split-adjusted to the current basis; 3y shown of 5,294 bars on file. Sampled to 240 points — every point is a real close, none averaged. Price return, not total return (dividends excluded). Source marketstack.

At a glance

Fair value (model)$26.67

Implied upside−37.8%

Valuation confidenceMEDIUM

Price impliesUNDEMANDING · 7.2% growth

Short interest4.6% of sh out

Days to cover4.9d

13F net flow (QoQ)+3.09%

Top-10 13F concentration64.9%

Next report (est.)2026-08-06

Fair value, confidence and the reverse-DCF grade are the MATERIALIZED daily snapshot (the same columns the screener serves), not a live model run. Short interest is FINRA semi-monthly, settlement 2026-07-15. 13F figures are quarterly filings, period 2026-Q1 — a lower bound on true ownership.

Key fundamentalsFY 2025

Sales (TTM)$1.25B

Earnings (TTM)-$133.0M

Trailing returns

YTD−13.3%

1Y−35.7%

3Y−33.7%

5Y−42.6%

10Y+17.0%

Since incept. (ann.)+3.6%

Total return through 2026-07-30 · series begins 2005-07-11. Only the windows this history actually covers are shown.

Risk

Ann. volatility (1Y)51.2%

Ann. volatility (3Y)41.1%

Sharpe (1Y)−0.61

Sharpe (3Y)−0.13

Max drawdown (1Y)−54.7%

Max drawdown (3Y)−61.2%

Beta (3Y vs SPY)1.14

Daily simple returns, annualized; drawdown is peak-to-trough within the window. Beta is the OLS slope of monthly returns on SPY's over three years. Each figure is labeled by the window it was measured over — they are not comparable across windows.

Top institutional holders13F 2026-Q1

Manager	Shares	Value	% sh out	QoQ
BlackRock, Inc.	5.0M	$201M	17.09%	+1.6%
FMR LLC	4.4M	$177M	15.00%	+19.9%
ALLIANCEBERNSTEIN L.P.	2.2M	$109M	7.44%	+28.2%
DIMENSIONAL FUND ADVISORS LP	1.7M	$68M	5.77%	+0.4%
STATE STREET CORP	1.3M	$54M	4.55%	−1.3%
VANGUARD PORTFOLIO MANAGEMENT LLC	1.3M	$53M	4.48%	new
VANGUARD CAPITAL MANAGEMENT LLC	1.3M	$53M	4.48%	new
BARROW HANLEY MEWHINNEY & STRAUSS LLC	1.2M	$47M	3.96%	+18.6%

Reported 13F long positions as filed for 2026-Q1 (change vs 2025-Q4). 13F covers US-listed long equity only — the sum is a LOWER BOUND on institutional ownership, never a total. Institutional 13F holdings sum to 104.7% of shares outstanding. Readings above 100% reflect securities-lending double counting: shares on loan to short sellers are reported long by both the lending institution and the one that bought them. FINRA short interest of 1,196,960 shares (settlement 2026-04-30) accounts for the excess.

Latest reported quarterslast report 2026-05-07

Period end	Reported	EPS	EPS YoY	Revenue	Rev YoY
2026-03-31	2026-05-07	−$2.26	−427.5%	$356.3M	+44.6%
2025-12-31	2026-02-26	—	—	$268.7M	+49.2%
2025-09-30	2025-10-30	−$2.98	−368.5%	$310.9M	+12.2%
2025-06-30	2025-08-06	$0.87	−17.1%	$309.5M	+13.1%

EPS and revenue as reported in this filer's own XBRL — our extraction of the filings, not a vendor consensus feed, and never a beat/miss claim (we carry no estimates). YoY compares the same fiscal quarter a year earlier. Next report 2026-08-06 is ESTIMATED from filing cadence (median gap 91d) — not company-confirmed.

Segment mixFY2025 (ended Dec 2025)

Residential 73% · Agtech 19% · Infrastructure 8%

business segments · each slice's share of TAGGED segment revenue in the latest annual filing (XBRL, as filed). Untagged revenue is excluded from the denominator, so slices need not sum to consolidated sales.

Basis & disclosures

End-of-day only. Every price on this sheet is a stored CLOSE — the last one is 2026-07-30. Nothing here is live, intraday or delayed-real-time, and the sheet does not update after it is printed.
Nothing is imputed. A figure that is not in the underlying filing or feed renders as “—”. We never fill a gap with an estimate, a peer median or a carried-forward value.
Mixed as-of dates by design. Prices are at the last close; fundamentals are at the latest reported fiscal period; 13F ownership is at the latest filed quarter (45+ days in arrears); short interest is the latest FINRA settlement. Each block states its own basis above.
Not investment advice. Model fair values, reverse-DCF grades and confidence labels are the output of published, disclosed methods on public filings — they are analysis, not a recommendation, a price target or a solicitation.
Fundamentals and ownership derive from SEC EDGAR (and equivalent foreign registers); prices from a licensed end-of-day vendor, shown under a neutral source label. Full methodology at spzco.com/methodology.