Koppers Holdings Inc. (KOP) Stock

Koppers Holdings Inc. (KOP) is a Materials stock trading at $45.13 (as of 2026-08-21), with a market capitalization of $853.48M. Figures are sourced from first-party U.S. SEC EDGAR filings and market data.

Koppers Holdings supplies treated wood products and related chemicals, operating through Railroad and Utility Products and Services (including treated timbers, rail joint bars, utility poles, pilings, and related engineering/inspection services), Performance Chemicals (copper-based wood preservatives and fire-retardant chemicals), and Carbon Materials and Chemicals.

Understand Koppers Holdings Inc.: how it makes money

Koppers makes treated wood products for railroads and utilities, sells wood preservation and performance chemicals, and produces carbon materials and carbon-related chemicals, earning money through net sales across its RUPS, PC, and CMC segments.

Its earnings are generated by converting industrial inputs into three different product streams (railroad and utility treated products and services, performance chemicals, and carbon materials and chemicals), so results depend on demand and operating execution across these separate end-market exposures rather than a single product category.

Revenue by segment (latest quarter)
RUPS	$0.2B
PC	$0.1B
CMC	$0.2B

Business quality (Weak): Officially reported segments are RUPS, PC, and CMC, but segment revenue was not provided directly as three figures, so CMC was built by combining the available CMC-related net sales labels to get to a total close to the reported revenue.

Valuation: At 12× earnings, KOP trades 52% below the Construction Materials average (24×). Note: one-time items can distort reported P/E.

Bull case

Diversified product streams: Koppers reports three segments (RUPS, PC, and CMC), covering treated railroad and utility products and services, performance chemicals, and carbon materials and chemicals.
Safety operating metrics are tracked: The company discloses Accident-Free Sites (30.0) and Accident-Free Operating Facilities (26.0), which can indicate discipline in operating and site performance.

Bear case

Demand or volume pressure signals exist: An operating metric is labeled Salic Anhydride Lower Volumes (20,000,000 count), which can indicate periods of reduced volumes in relevant chemical activity.
Operating execution matters at the site level: Accident-Free Operating Facilities (26.0) is lower than Accident-Free Sites (30.0), which suggests that not all sites or facilities maintain the same safety outcomes at all times.

Valuation — source: SEC EDGAR (first-party)
Price	$45.13
Market Cap	$853.48M
EV / EBITDA	52.5
Price / Book	2.21
Price / Sales	0.45
FCF Yield	16.3%
DCF Value (model)	$52.91
DCF Upside vs Price	17.2%

Profitability & Growth — source: SEC EDGAR
Revenue (TTM)	$1.88B
Net Margin	3.0%
Revenue Growth (YoY)	3.0%
EPS Growth (YoY)	-1028.9%
FCF Growth (YoY)	-1.8%

Financial Health — source: SEC EDGAR
Altman Z-Score	2.38 (grey)
Piotroski F-Score	8/9 (strong)

Valuation vs Sector & Industry
Sector P/E (Materials)	25.9
Industry P/E (Construction Materials)	23.6

Smart-Money Activity — SEC Form 4 / 13F / Congressional disclosures
Top Institutional Holder	BlackRock, Inc. ($117.78M)
Institutional Holders Tracked	10

Company
Sector	Materials
Industry	Construction Materials
CEO	Leroy Mangus Ball Jr.
Employees	2,082
Country	US
IPO Date	2006-02-01

Related Companies (Business model: Industrials / Capital Goods (Heavy Machinery + Diversified Industrials); 8 closest by market cap; US-domiciled)

Data as of 2026-08-21.

Figures sourced from U.S. Securities and Exchange Commission (SEC EDGAR) filings and market data. Not personalized investment advice.