ROCK vs TREX vs BLDR vs AWI

For growth investors, Armstrong World Industries, Inc.

(AWI) is the stronger pick with 12. 1% revenue growth year-over-year, versus -13. 2% for Gibraltar Industries, Inc. (ROCK). 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 Gibraltar Industries, Inc. (ROCK) a "Buy" — based on 5 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: Gibraltar Industries, Inc. wins at 0. 88x versus Trex Company, Inc. 's 7. 16x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Armstrong World Industries, Inc.

(AWI) delivered a total return of +63. 0%, compared to -64. 0% for Trex Company, Inc. (TREX). Over 10 years, the gap is even starker: BLDR returned +614. 8% versus ROCK's +40. 0%. 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. 82β versus Builders FirstSource, Inc. 's 1. 65β — meaning BLDR is approximately 102% 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 130% for Builders FirstSource, Inc. — 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 -13. 2% for Gibraltar Industries, Inc. (ROCK). On earnings-per-share growth, the picture is similar: Armstrong World Industries, Inc. grew EPS 17. 6% year-over-year, compared to -57. 1% for Builders FirstSource, Inc.. Over a 3-year CAGR, AWI leads at 9. 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 2. 9% for Builders FirstSource, 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 5. 2% for BLDR. 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, Gibraltar Industries, Inc. (ROCK) is the more undervalued stock at a PEG of 0. 88x versus Trex Company, Inc. 's 7. 16x. 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 24. 0x for Trex Company, Inc. — 14. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BLDR: 38. 3% to $109. 92.

In this comparison, AWI (0.

8% yield) pays a dividend. ROCK, TREX, BLDR 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. 82), 0. 8% yield, +330. 4% 10Y return). Gibraltar Industries, Inc. (ROCK) carries a higher beta of 1. 59 — 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: +330. 4%, ROCK: +40. 0%), 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: ROCK is a small-cap deep-value stock; TREX is a small-cap quality compounder stock; BLDR is a small-cap quality compounder stock; AWI is a small-cap quality compounder stock. AWI pays a dividend while ROCK, TREX, BLDR 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.