PAY vs CASS vs RPAY vs FLYW vs BILL

For growth investors, Paymentus Holdings, Inc.

(PAY) is the stronger pick with 37. 3% revenue growth year-over-year, versus -13. 1% for Cass Information Systems, Inc. (CASS). Cass Information Systems, Inc. (CASS) offers the better valuation at 18. 2x trailing P/E (15. 9x forward), making it the more compelling value choice. Analysts rate Cass Information Systems, Inc. (CASS) a "Buy" — based on 2 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, Cass Information Systems, Inc.

(CASS) is the cheapest at 18. 2x versus Bill. com Holdings, Inc. at 163. 6x. On forward P/E, Repay Holdings Corporation is actually cheaper at 3. 8x — 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: Paymentus Holdings, Inc. wins at 0. 67x versus Cass Information Systems, Inc. 's 1. 85x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

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

(CASS) delivered a total return of +15. 6%, compared to -83. 8% for Repay Holdings Corporation (RPAY). Over 10 years, the gap is even starker: CASS returned +57. 3% versus RPAY's -63. 3%. 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 Bill. com Holdings, Inc. 's 1. 88β — meaning BILL is approximately 157% 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 91% for Repay Holdings Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Paymentus Holdings, Inc.

(PAY) is pulling ahead at 37. 3% 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 -26. 3% for Repay Holdings Corporation. Over a 3-year CAGR, PAY leads at 34. 0% 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 -83. 0% for Repay Holdings Corporation — meaning it keeps 18. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CASS leads at 20. 3% versus -5. 5% for BILL. 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, Paymentus Holdings, Inc. (PAY) is the more undervalued stock at a PEG of 0. 67x versus Cass Information Systems, Inc. 's 1. 85x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Repay Holdings Corporation (RPAY) trades at 3. 8x forward P/E versus 41. 5x for Flywire Corporation — 37. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for RPAY: 60. 5% to $5. 60.

In this comparison, CASS (2.

6% yield) pays a dividend. PAY, RPAY, FLYW, BILL 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). Bill. com Holdings, Inc. (BILL) carries a higher beta of 1. 88 — 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%, BILL: +17. 8%), 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 (PAY (Technology) and CASS (Industrials) and RPAY (Technology) and FLYW (Technology) and BILL (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

In terms of investment character: PAY is a small-cap high-growth stock; CASS is a small-cap quality compounder stock; RPAY is a small-cap quality compounder stock; FLYW is a small-cap high-growth stock; BILL is a small-cap quality compounder stock. CASS pays a dividend while PAY, RPAY, FLYW, BILL 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.