The Filing Desk

AAON vs Simpson Manufacturing

AAON AAON · Simpson Manufacturing SSD · Building Products

Simpson Manufacturing reported revenue of $2.3 billion in fiscal 2025, 1.6 times AAON's $1.4 billion in fiscal 2025. AAON's revenue grew 20.1% in its latest year, and Simpson Manufacturing's grew 4.5%. AAON had an operating margin of 10.1%, against 19.6% at Simpson Manufacturing.

Side by side

AAONSimpson Manufacturing
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$1.4B$2.3B
Revenue growth20.1%4.5%
Revenue growth a year, last 5 years22.9%13.0%
Gross margin26.8%45.9%
Operating margin10.1%19.6%
Net margin7.5%14.8%
Free cash flow—$298M
Free cash flow margin—12.8%
Return on capital10.8%17.5%
Net debt to EBITDA1.8x−0.1x
Dividends and buybacks$63M$168M
Change in diluted share count−0.6%−1.2%
Last close$70.80$181.99
P/E at the last close37.1×19.9×
Insider trades, last 12 monthsbought $593,984, sold $23.2 millionsold $1.3 million
Piotroski F-score3 of 98 of 9
Amounts in each company's own currency, US$ 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
AAONSimpson Manufacturing
Operating margin
Percent of revenue
AAONSimpson Manufacturing
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
AAONSimpson Manufacturing

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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 AAON and Simpson Manufacturing pages.