ACIW vs NVDA

For growth investors, NVIDIA Corporation (NVDA) is the stronger pick with 65.

5% revenue growth year-over-year, versus 10. 4% for ACI Worldwide, Inc. (ACIW). ACI Worldwide, Inc. (ACIW) offers the better valuation at 21. 6x trailing P/E (19. 0x forward), making it the more compelling value choice. Analysts rate ACI Worldwide, Inc. (ACIW) a "Buy" — based on 17 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, ACI Worldwide, Inc.

(ACIW) is the cheapest at 21. 6x versus NVIDIA Corporation at 43. 2x. On forward P/E, ACI Worldwide, Inc. is actually cheaper at 19. 0x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: NVIDIA Corporation wins at 0. 27x versus ACI Worldwide, Inc. 's 0. 67x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, NVIDIA Corporation (NVDA) delivered a total return of +1329%, compared to +21.

7% for ACI Worldwide, Inc. (ACIW). Over 10 years, the gap is even starker: NVDA returned +239. 0% versus ACIW's +131. 7%. 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), ACI Worldwide, Inc.

(ACIW) is the lower-risk stock at 1. 03β versus NVIDIA Corporation's 1. 73β — meaning NVDA is approximately 68% more volatile than ACIW relative to the S&P 500. On balance sheet safety, NVIDIA Corporation (NVDA) carries a lower debt/equity ratio of 7% versus 57% for ACI Worldwide, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), NVIDIA Corporation (NVDA) is pulling ahead at 65.

5% versus 10. 4% for ACI Worldwide, Inc. (ACIW). On earnings-per-share growth, the picture is similar: NVIDIA Corporation grew EPS 66. 7% year-over-year, compared to 13. 1% for ACI Worldwide, Inc.. Over a 3-year CAGR, NVDA leads at 100. 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.

NVIDIA Corporation (NVDA) is the more profitable company, earning 55.

6% net margin versus 12. 9% for ACI Worldwide, Inc. — meaning it keeps 55. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: NVDA leads at 60. 4% versus 18. 7% for ACIW. At the gross margin level — before operating expenses — NVDA leads at 71. 1%, 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, NVIDIA Corporation (NVDA) is the more undervalued stock at a PEG of 0. 27x versus ACI Worldwide, Inc. 's 0. 67x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, ACI Worldwide, Inc. (ACIW) trades at 19. 0x forward P/E versus 25. 6x for NVIDIA Corporation — 6. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ACIW: 50. 1% to $70. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, ACI Worldwide, Inc.

(ACIW) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 03), +131. 7% 10Y return). NVIDIA Corporation (NVDA) carries a higher beta of 1. 73 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ACIW: +131. 7%, NVDA: +239. 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.

Both stocks operate in the Technology sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: ACIW is a small-cap quality compounder stock; NVDA is a mega-cap high-growth 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.