ROCK vs TREX vs AAON vs NCI vs BLDR

For growth investors, Neo-Concept International Group Holdings Limited (NCI) is the stronger pick with 35.

3% 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 AAON, Inc. at 100. 2x. 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 AAON, Inc. 's 12. 01x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, AAON, Inc.

(AAON) delivered a total return of +196. 3%, compared to -97. 7% for Neo-Concept International Group Holdings Limited (NCI). Over 10 years, the gap is even starker: BLDR returned +614. 8% versus NCI's -97. 1%. 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), Neo-Concept International Group Holdings Limited (NCI) is the lower-risk stock at -1.

05β versus AAON, Inc. 's 1. 83β — meaning AAON is approximately -274% more volatile than NCI 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), Neo-Concept International Group Holdings Limited (NCI) is pulling ahead at 35.

3% versus -13. 2% for Gibraltar Industries, Inc. (ROCK). On earnings-per-share growth, the picture is similar: Neo-Concept International Group Holdings Limited grew EPS 81. 8% year-over-year, compared to -57. 1% for Builders FirstSource, 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.

Trex Company, Inc.

(TREX) is the more profitable company, earning 16. 2% net margin versus 2. 9% for Builders FirstSource, Inc. — meaning it keeps 16. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TREX leads at 22. 0% versus 4. 9% for NCI. At the gross margin level — before operating expenses — TREX leads at 39. 2%, 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 AAON, Inc. 's 12. 01x. 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 65. 3x for AAON, Inc. — 55. 9x 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, AAON (0.

3% yield) pays a dividend. ROCK, TREX, NCI, BLDR do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Neo-Concept International Group Holdings Limited (NCI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β -1.

05)). 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 (NCI: -97. 1%, 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.

These companies operate in different sectors (ROCK (Industrials) and TREX (Industrials) and AAON (Industrials) and NCI (Consumer Cyclical) and BLDR (Industrials)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: ROCK is a small-cap deep-value stock; TREX is a small-cap quality compounder stock; AAON is a mid-cap high-growth stock; NCI is a small-cap high-growth stock; BLDR is a small-cap quality compounder stock. 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.