SSD vs AAON

For growth investors, AAON, Inc.

(AAON) is the stronger pick with 20. 1% revenue growth year-over-year, versus 4. 5% for Simpson Manufacturing Co. , Inc. (SSD). Simpson Manufacturing Co. , Inc. (SSD) offers the better valuation at 23. 6x trailing P/E (21. 4x forward), making it the more compelling value choice. Analysts rate Simpson Manufacturing Co. , Inc. (SSD) a "Buy" — based on 8 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, Simpson Manufacturing Co.

, Inc. (SSD) is the cheapest at 23. 6x versus AAON, Inc. at 76. 2x. On forward P/E, Simpson Manufacturing Co. , Inc. is actually cheaper at 21. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Simpson Manufacturing Co. , Inc. wins at 1. 52x versus AAON, Inc. 's 9. 13x — a reasonable growth-adjusted valuation.

Over the past 5 years, AAON, Inc.

(AAON) delivered a total return of +134. 3%, compared to +71. 1% for Simpson Manufacturing Co. , Inc. (SSD). Over 10 years, the gap is even starker: AAON returned +440. 9% versus SSD's +434. 2%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), Simpson Manufacturing Co.

, Inc. (SSD) is the lower-risk stock at 0. 94β versus AAON, Inc. 's 1. 83β — meaning AAON is approximately 95% more volatile than SSD relative to the S&P 500. On balance sheet safety, Simpson Manufacturing Co. , Inc. (SSD) carries a lower debt/equity ratio of 24% versus 48% for AAON, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), AAON, Inc.

(AAON) is pulling ahead at 20. 1% versus 4. 5% for Simpson Manufacturing Co. , Inc. (SSD). On earnings-per-share growth, the picture is similar: Simpson Manufacturing Co. , Inc. grew EPS 8. 4% year-over-year, compared to -36. 1% for AAON, Inc.. Over a 3-year CAGR, AAON leads at 17. 5% annualised revenue growth. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

Simpson Manufacturing Co.

, Inc. (SSD) is the more profitable company, earning 14. 8% net margin versus 7. 5% for AAON, Inc. — meaning it keeps 14. 8% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SSD leads at 19. 0% versus 10. 1% for AAON. At the gross margin level — before operating expenses — SSD leads at 45. 9%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Simpson Manufacturing Co. , Inc. (SSD) is the more undervalued stock at a PEG of 1. 52x versus AAON, Inc. 's 9. 13x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Simpson Manufacturing Co. , Inc. (SSD) trades at 21. 4x forward P/E versus 49. 6x for AAON, Inc. — 28. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AAON: 21. 1% to $119. 00.

All stocks in this comparison pay dividends.

Simpson Manufacturing Co. , Inc. (SSD) offers the highest yield at 0. 6%, versus 0. 4% for AAON, Inc. (AAON).

For long-horizon retirement investors, Simpson Manufacturing Co.

, Inc. (SSD) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 94), 0. 6% yield, +434. 2% 10Y return). AAON, Inc. (AAON) carries a higher beta of 1. 83 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SSD: +434. 2%, AAON: +440. 9%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: SSD is a small-cap quality compounder stock; AAON is a small-cap high-growth stock. SSD pays a dividend while AAON does not, making them suitable for different income and tax situations. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.