The Filing Desk

A. O. Smith vs Watts Water Technologies

A. O. Smith AOS · Watts Water Technologies WTS · Building Products

A. O. Smith reported revenue of $3.8 billion in fiscal 2025, 1.6 times Watts Water Technologies' $2.4 billion in fiscal 2025. A. O. Smith's revenue grew 0.3% in its latest year, and Watts Water Technologies' grew 8.3%. A. O. Smith had an operating margin of 19.0%, against 18.4% at Watts Water Technologies. Free cash flow was $546 million at A. O. Smith and $356 million at Watts Water Technologies.

Side by side

A. O. SmithWatts Water Technologies
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$3.8B$2.4B
Revenue growth0.3%8.3%
Revenue growth a year, last 5 years5.8%10.1%
Gross margin38.8%49.5%
Operating margin19.0%18.4%
Net margin14.3%14.0%
Free cash flow$546M$356M
Free cash flow margin14.3%14.6%
Return on capital30.7%20.5%
Net debt to EBITDA−0.1x−0.4x
Dividends and buybacks$596M$83M
Change in diluted share count−3.5%0.0%
Last close$61.91$367.75
P/E at the last close17.2×32.1×
Insider trades, last 12 monthssold $110,568sold $17.4 million
Piotroski F-score7 of 98 of 9
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
A. O. SmithWatts Water Technologies
Operating margin
Percent of revenue
A. O. SmithWatts Water Technologies
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
A. O. SmithWatts Water Technologies

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the A. O. Smith and Watts Water Technologies pages.