The Filing Desk

Simpson Manufacturing vs Watts Water Technologies

Simpson Manufacturing SSD · Watts Water Technologies WTS · Building Products

Watts Water Technologies reported revenue of $2.4 billion in fiscal 2025, about the same as Simpson Manufacturing's $2.3 billion in fiscal 2025. Simpson Manufacturing's revenue grew 4.5% in its latest year, and Watts Water Technologies' grew 8.3%. Simpson Manufacturing had an operating margin of 19.6%, against 18.4% at Watts Water Technologies. Free cash flow was $298 million at Simpson Manufacturing and $356 million at Watts Water Technologies.

Side by side

Simpson ManufacturingWatts Water Technologies
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$2.3B$2.4B
Revenue growth4.5%8.3%
Revenue growth a year, last 5 years13.0%10.1%
Gross margin45.9%49.5%
Operating margin19.6%18.4%
Net margin14.8%14.0%
Free cash flow$298M$356M
Free cash flow margin12.8%14.6%
Return on capital17.5%20.5%
Net debt to EBITDA−0.1x−0.4x
Dividends and buybacks$168M$83M
Change in diluted share count−1.2%0.0%
Last close$181.99$367.75
P/E at the last close19.9×32.1×
Insider trades, last 12 monthssold $1.3 millionsold $17.4 million
Piotroski F-score8 of 98 of 9
Amounts in each company's own currency, US$ 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
Simpson ManufacturingWatts Water Technologies
Operating margin
Percent of revenue
Simpson ManufacturingWatts Water Technologies
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
Simpson ManufacturingWatts 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 Simpson Manufacturing and Watts Water Technologies pages.