ASPN vs OC vs IBP vs ROCK vs AWI

For growth investors, Armstrong World Industries, Inc.

(AWI) is the stronger pick with 12. 1% revenue growth year-over-year, versus -40. 1% for Aspen Aerogels, Inc. (ASPN). Gibraltar Industries, Inc. (ROCK) offers the better valuation at 11. 6x trailing P/E (9. 4x forward), making it the more compelling value choice. Analysts rate Aspen Aerogels, Inc. (ASPN) a "Buy" — based on 23 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, Gibraltar Industries, Inc.

(ROCK) is the cheapest at 11. 6x versus Armstrong World Industries, Inc. at 23. 3x. On forward P/E, Gibraltar Industries, Inc. is actually cheaper at 9. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Installed Building Products, Inc. wins at 0. 80x versus Gibraltar Industries, Inc. 's 0. 88x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Installed Building Products, Inc.

(IBP) delivered a total return of +80. 6%, compared to -73. 5% for Aspen Aerogels, Inc. (ASPN). Over 10 years, the gap is even starker: IBP returned +660. 5% versus ASPN's +12. 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), Armstrong World Industries, Inc.

(AWI) is the lower-risk stock at 0. 81β versus Aspen Aerogels, Inc. 's 1. 93β — meaning ASPN is approximately 138% more volatile than AWI relative to the S&P 500. On balance sheet safety, Gibraltar Industries, Inc. (ROCK) carries a lower debt/equity ratio of 11% versus 158% for Owens Corning — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Armstrong World Industries, Inc.

(AWI) is pulling ahead at 12. 1% versus -40. 1% for Aspen Aerogels, Inc. (ASPN). On earnings-per-share growth, the picture is similar: Armstrong World Industries, Inc. grew EPS 17. 6% year-over-year, compared to -28. 9% for Aspen Aerogels, Inc.. Over a 3-year CAGR, ASPN leads at 14. 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.

Armstrong World Industries, Inc.

(AWI) is the more profitable company, earning 19. 0% net margin versus -143. 7% for Aspen Aerogels, Inc. — meaning it keeps 19. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AWI leads at 26. 6% versus -19. 0% for ASPN. At the gross margin level — before operating expenses — AWI leads at 40. 6%, 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, Installed Building Products, Inc. (IBP) is the more undervalued stock at a PEG of 0. 80x versus Gibraltar Industries, Inc. 's 0. 88x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Gibraltar Industries, Inc. (ROCK) trades at 9. 4x forward P/E versus 19. 5x for Installed Building Products, Inc. — 10. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for IBP: 35. 2% to $293. 00.

In this comparison, OC (2.

3% yield), IBP (1. 5% yield), AWI (0. 8% yield) pay a dividend. ASPN, ROCK do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Armstrong World Industries, Inc.

(AWI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 81), 0. 8% yield, +322. 1% 10Y return). Aspen Aerogels, Inc. (ASPN) carries a higher beta of 1. 93 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AWI: +322. 1%, ASPN: +12. 2%), 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.

These companies operate in different sectors (ASPN (Industrials) and OC (Industrials) and IBP (Consumer Cyclical) and ROCK (Industrials) and AWI (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: ASPN is a small-cap quality compounder stock; OC is a small-cap quality compounder stock; IBP is a small-cap quality compounder stock; ROCK is a small-cap deep-value stock; AWI is a small-cap quality compounder stock. OC, IBP, AWI pay a dividend while ASPN, ROCK do 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.