TTMI vs AWI vs VECO vs DDI vs APH

For growth investors, Amphenol Corporation (APH) is the stronger pick with 51.

7% revenue growth year-over-year, versus -7. 4% for Veeco Instruments Inc. (VECO). DoubleDown Interactive Co. , Ltd. (DDI) offers the better valuation at 5. 4x trailing P/E (4. 8x forward), making it the more compelling value choice. Analysts rate TTM Technologies, Inc. (TTMI) a "Buy" — based on 14 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, DoubleDown Interactive Co.

, Ltd. (DDI) is the cheapest at 5. 4x versus Veeco Instruments Inc. at 97. 8x. On forward P/E, DoubleDown Interactive Co. , Ltd. is actually cheaper at 4. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: DoubleDown Interactive Co. , Ltd. wins at 0. 42x versus Amphenol Corporation's 1. 05x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, TTM Technologies, Inc.

(TTMI) delivered a total return of +919. 0%, compared to -37. 4% for DoubleDown Interactive Co. , Ltd. (DDI). Over 10 years, the gap is even starker: TTMI returned +23. 1% versus DDI's -37. 4%. 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), DoubleDown Interactive Co.

, Ltd. (DDI) is the lower-risk stock at 0. 49β versus TTM Technologies, Inc. 's 3. 19β — meaning TTMI is approximately 547% more volatile than DDI relative to the S&P 500. On balance sheet safety, DoubleDown Interactive Co. , Ltd. (DDI) carries a lower debt/equity ratio of 5% versus 115% for Amphenol Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Amphenol Corporation (APH) is pulling ahead at 51.

7% versus -7. 4% for Veeco Instruments Inc. (VECO). On earnings-per-share growth, the picture is similar: TTM Technologies, Inc. grew EPS 211. 1% year-over-year, compared to -52. 0% for Veeco Instruments Inc.. Over a 3-year CAGR, APH leads at 22. 3% 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.

DoubleDown Interactive Co.

, Ltd. (DDI) is the more profitable company, earning 28. 5% net margin versus 5. 3% for Veeco Instruments Inc. — meaning it keeps 28. 5% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: DDI leads at 37. 5% versus 5. 4% for VECO. At the gross margin level — before operating expenses — DDI leads at 71. 8%, 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, DoubleDown Interactive Co. , Ltd. (DDI) is the more undervalued stock at a PEG of 0. 42x versus Amphenol Corporation's 1. 05x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, DoubleDown Interactive Co. , Ltd. (DDI) trades at 4. 8x forward P/E versus 44. 1x for TTM Technologies, Inc. — 39. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for DDI: 43. 9% to $16. 00.

In this comparison, AWI (0.

8% yield), APH (0. 5% yield) pay a dividend. TTMI, VECO, DDI 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). TTM Technologies, Inc. (TTMI) carries a higher beta of 3. 19 — 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%, TTMI: +23. 1%), 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 (TTMI (Technology) and AWI (Industrials) and VECO (Technology) and DDI (Technology) and APH (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: TTMI is a mid-cap high-growth stock; AWI is a small-cap quality compounder stock; VECO is a small-cap quality compounder stock; DDI is a small-cap deep-value stock; APH is a mid-cap high-growth stock. AWI pays a dividend while TTMI, VECO, DDI, APH 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.