PDFS vs PRGS vs ONTO vs GWRE

For growth investors, Progress Software Corporation (PRGS) is the stronger pick with 29.

8% revenue growth year-over-year, versus 1. 8% for Onto Innovation Inc. (ONTO). Progress Software Corporation (PRGS) offers the better valuation at 17. 7x trailing P/E (4. 9x forward), making it the more compelling value choice. Analysts rate PDF Solutions, Inc. (PDFS) a "Buy" — based on 5 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, Progress Software Corporation (PRGS) is the cheapest at 17.

7x versus Guidewire Software, Inc. at 172. 3x. On forward P/E, Progress Software Corporation is actually cheaper at 4. 9x.

Over the past 5 years, Onto Innovation Inc.

(ONTO) delivered a total return of +312. 6%, compared to -28. 0% for Progress Software Corporation (PRGS). Over 10 years, the gap is even starker: ONTO returned +1432% versus PRGS's +39. 0%. 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), Guidewire Software, Inc.

(GWRE) is the lower-risk stock at 0. 61β versus Onto Innovation Inc. 's 2. 66β — meaning ONTO is approximately 336% more volatile than GWRE relative to the S&P 500. On balance sheet safety, Onto Innovation Inc. (ONTO) carries a lower debt/equity ratio of 1% versus 178% for Progress Software Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Progress Software Corporation (PRGS) is pulling ahead at 29.

8% versus 1. 8% for Onto Innovation Inc. (ONTO). On earnings-per-share growth, the picture is similar: Guidewire Software, Inc. grew EPS 1192% year-over-year, compared to -116. 3% for PDF Solutions, Inc.. Over a 3-year CAGR, PRGS leads at 17. 5% 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.

Onto Innovation Inc.

(ONTO) is the more profitable company, earning 13. 6% net margin versus -0. 3% for PDF Solutions, Inc. — meaning it keeps 13. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PRGS leads at 15. 7% versus 2. 7% for PDFS. At the gross margin level — before operating expenses — PRGS leads at 80. 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.

On forward earnings alone, Progress Software Corporation (PRGS) trades at 4.

9x forward P/E versus 42. 7x for PDF Solutions, Inc. — 37. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for GWRE: 75. 6% to $245. 17.

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, Guidewire Software, Inc.

(GWRE) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 61), +151. 9% 10Y return). PDF Solutions, Inc. (PDFS) carries a higher beta of 2. 21 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (GWRE: +151. 9%, PDFS: +269. 5%), 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: PDFS is a small-cap high-growth stock; PRGS is a small-cap high-growth stock; ONTO is a mid-cap quality compounder stock; GWRE is a mid-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.