Guide4 min read

How to Value Infrastructure Stocks: Rail, Water and Materials

Quarries, railroads, contractors and water utilities earn money differently. Which multiple fits each, with dated examples from our data.

StockResearch

Infrastructure stocks share a theme, not a business model. A quarry, a railroad, a contractor and a water utility earn money in different ways, so the same multiple can say different things about each.

Start with how the business earns money

Pick the measure that matches the economics, then compare the company with its own history on that measure. The table is a starting point, not a rule.

BusinessHow it earns moneyStart withThen check
Construction materialsPrice per ton from local quarries and cement plantsEV/Sales, then P/EPrice increases against shipped volumes
Contractors and engineersThin margins on large project revenueEV/Sales and P/EBacklog and margin on new work
Equipment rentalRental rates on a fleet that wears outEV/EBITDA and P/EFleet spending and used-equipment prices
RailroadsFreight rates on a network that is hard to copyEV/EBITDA and P/EVolumes and the share of revenue kept as profit
Water utilitiesAn allowed return set by state regulatorsP/EPending rate cases and investment plans
Enterprise value (EV) is market value plus net debt, which matters because railroads, rental fleets and utilities carry far more debt than consultants.

One company, two answers

At our October 23, 2026 review (latest weekly observation from the week of October 19), Vulcan Materials (VMC) traded at 4.7x EV/Sales, the 43rd percentile of its own five-year range. Its P/E of 31.2x sat at the 3rd percentile. Trailing revenue was up 7% from a year earlier while trailing earnings per share rose 18%, so the earnings denominator grew faster than the sales denominator.

Neither number is the right one. The sales rank says the market pays about its usual amount for each dollar of revenue. Read together with the low earnings rank, it says profit per dollar of revenue is higher than in most of the last five years. Whether those margins hold is the question to research. The EV/Sales and EV/EBITDA guide walks through the arithmetic.

Railroads near the top, water near the bottom

The same review shows a wide split. Union Pacific, CSX and Norfolk Southern sat between the 88th and 91st percentiles on EV/Sales, and CSX at the 98th on P/E. United Rentals sat at the 96th on all three measures. On the other side, Xylem, which sells pumps, meters and treatment equipment to water utilities, sat at the 4th percentile on EV/Sales and the 3rd on P/E.

CompanyEV/SalesPercentileP/EPercentile
UNP8.0x88th23.8x86th
CSX7.6x91st29.7x98th
URI4.9x96th26.4x96th
AWK8.2x25th24.7x46th
XYL3.0x4th25.9x3rd
Trailing twelve-month multiples and five-year percentiles, StockResearch dataset, review of October 23, 2026.

Water shows why a layer is not one business. American Water Works is a regulated utility whose earnings depend on the returns state commissions allow. Xylem sells equipment and competes for orders. A percentile compares each one only with its own past.

Check how much history stands behind the rank

CRH moved its primary listing to New York in 2023, and our ranked history for it starts in November 2024. Jacobs merged part of its government business into Amentum in 2024, so we rank it only on the period after the separation. Both ranks rest on about two years or less. Martin Marietta and AECOM were under data review at the same review and do not count toward any layer median. The spin-off and new-listing guide and the missing-percentile guide explain each case.

Infrastructure stocks for AI are a different list

Searches for infrastructure stocks often mean chips, servers and data centers. Those companies sit in AI Infrastructure, and power and grid equipment sits in AI Power. The Infrastructure theme covers roads, rail, water and the materials and contractors behind them. The infrastructure screen lists the same companies with a switch for each measure.

Put this to work

Compare roads, rail, water and materials companies with their own history, one measure at a time.

Open the infrastructure screen
Educational content. Worked examples use illustrative numbers; current stock pages show dated observations.