GDYN vs CASS vs EPAM vs WEX vs FLYW

For growth investors, Flywire Corporation (FLYW) is the stronger pick with 26.

6% revenue growth year-over-year, versus -13. 1% for Cass Information Systems, Inc. (CASS). EPAM Systems, Inc. (EPAM) offers the better valuation at 15. 5x trailing P/E (7. 7x forward), making it the more compelling value choice. Analysts rate Grid Dynamics Holdings, Inc. (GDYN) a "Buy" — based on 8 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, EPAM Systems, Inc.

(EPAM) is the cheapest at 15. 5x versus Flywire Corporation at 161. 2x. On forward P/E, WEX Inc. is actually cheaper at 7. 3x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Cass Information Systems, Inc. wins at 1. 85x versus EPAM Systems, Inc. 's 2. 07x — a reasonable growth-adjusted valuation.

Over the past 5 years, Cass Information Systems, Inc.

(CASS) delivered a total return of +15. 6%, compared to -77. 3% for EPAM Systems, Inc. (EPAM). Over 10 years, the gap is even starker: WEX returned +58. 0% versus FLYW's -50. 9%. 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), Cass Information Systems, Inc.

(CASS) is the lower-risk stock at 0. 73β versus Grid Dynamics Holdings, Inc. 's 1. 70β — meaning GDYN is approximately 132% more volatile than CASS relative to the S&P 500. On balance sheet safety, Cass Information Systems, Inc. (CASS) carries a lower debt/equity ratio of 2% versus 4% for WEX Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Flywire Corporation (FLYW) is pulling ahead at 26.

6% versus -13. 1% for Cass Information Systems, Inc. (CASS). On earnings-per-share growth, the picture is similar: Flywire Corporation grew EPS 391. 1% year-over-year, compared to -14. 3% for EPAM Systems, Inc.. Over a 3-year CAGR, FLYW leads at 29. 1% 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.

Cass Information Systems, Inc.

(CASS) is the more profitable company, earning 18. 4% net margin versus 2. 2% for Flywire Corporation — meaning it keeps 18. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: WEX leads at 25. 4% versus 0. 6% for GDYN. At the gross margin level — before operating expenses — CASS leads at 100. 0%, 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, Cass Information Systems, Inc. (CASS) is the more undervalued stock at a PEG of 1. 85x versus EPAM Systems, Inc. 's 2. 07x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, WEX Inc. (WEX) trades at 7. 3x forward P/E versus 41. 5x for Flywire Corporation — 34. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for EPAM: 51. 4% to $158. 00.

In this comparison, CASS (2.

6% yield) pays a dividend. GDYN, EPAM, WEX, FLYW do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Cass Information Systems, Inc.

(CASS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 73), 2. 6% yield). Grid Dynamics Holdings, Inc. (GDYN) carries a higher beta of 1. 70 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (CASS: +57. 3%, GDYN: -26. 6%), 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 (GDYN (Technology) and CASS (Industrials) and EPAM (Technology) and WEX (Technology) and FLYW (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: GDYN is a small-cap high-growth stock; CASS is a small-cap quality compounder stock; EPAM is a small-cap high-growth stock; WEX is a small-cap deep-value stock; FLYW is a small-cap high-growth stock. CASS pays a dividend while GDYN, EPAM, WEX, FLYW 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.