REFR vs PPG vs SHW vs VUZI

For growth investors, Vuzix Corporation (VUZI) is the stronger pick with 1090% revenue growth year-over-year, versus -16.

0% for Research Frontiers Incorporated (REFR). PPG Industries, Inc. (PPG) offers the better valuation at 15. 7x trailing P/E (13. 8x forward), making it the more compelling value choice. Analysts rate PPG Industries, Inc. (PPG) a "Buy" — based on 38 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, PPG Industries, Inc.

(PPG) is the cheapest at 15. 7x versus The Sherwin-Williams Company at 31. 2x. On forward P/E, PPG Industries, Inc. is actually cheaper at 13. 8x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: PPG Industries, Inc. wins at 1. 50x versus The Sherwin-Williams Company's 3. 94x — a reasonable growth-adjusted valuation.

Over the past 5 years, The Sherwin-Williams Company (SHW) delivered a total return of +16.

1%, compared to -84. 8% for Vuzix Corporation (VUZI). Over 10 years, the gap is even starker: SHW returned +250. 0% versus REFR's -80. 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), The Sherwin-Williams Company (SHW) is the lower-risk stock at 0.

79β versus Vuzix Corporation's 3. 40β — meaning VUZI is approximately 329% more volatile than SHW relative to the S&P 500. On balance sheet safety, Vuzix Corporation (VUZI) carries a lower debt/equity ratio of 4% versus 3% for The Sherwin-Williams Company — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Vuzix Corporation (VUZI) is pulling ahead at 1090% versus -16.

0% for Research Frontiers Incorporated (REFR). On earnings-per-share growth, the picture is similar: Vuzix Corporation grew EPS 61. 1% year-over-year, compared to -55. 5% for Research Frontiers Incorporated. Over a 3-year CAGR, VUZI leads at 709. 6% 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.

The Sherwin-Williams Company (SHW) is the more profitable company, earning 10.

9% net margin versus -513. 9% for Vuzix Corporation — meaning it keeps 10. 9% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SHW leads at 16. 1% versus -517. 6% for VUZI. At the gross margin level — before operating expenses — REFR leads at 83. 4%, 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, PPG Industries, Inc. (PPG) is the more undervalued stock at a PEG of 1. 50x versus The Sherwin-Williams Company's 3. 94x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, PPG Industries, Inc. (PPG) trades at 13. 8x forward P/E versus 27. 3x for The Sherwin-Williams Company — 13. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for VUZI: 109. 8% to $6. 00.

In this comparison, VUZI (10.

1% yield), PPG (2. 5% yield), SHW (1. 0% yield) pay a dividend. REFR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, The Sherwin-Williams Company (SHW) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

79), 1. 0% yield, +250. 0% 10Y return). Vuzix Corporation (VUZI) carries a higher beta of 3. 40 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SHW: +250. 0%, VUZI: -35. 7%), 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 (REFR (Technology) and PPG (Basic Materials) and SHW (Basic Materials) and VUZI (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: REFR is a small-cap quality compounder stock; PPG is a mid-cap deep-value stock; SHW is a mid-cap quality compounder stock; VUZI is a small-cap high-growth stock. PPG, SHW, VUZI pay a dividend while REFR 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.