PDFS vs COHU

For growth investors, Cohu, Inc.

(COHU) is the stronger pick with 12. 7% revenue growth year-over-year, versus 8. 2% for PDF Solutions, Inc. (PDFS). PDF Solutions, Inc. (PDFS) offers the better valuation at 481. 6x trailing P/E (43. 1x 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 forward P/E, PDF Solutions, Inc.

is actually cheaper at 43. 1x.

Over the past 5 years, PDF Solutions, Inc.

(PDFS) delivered a total return of +158. 0%, compared to +31. 4% for Cohu, Inc. (COHU). Over 10 years, the gap is even starker: COHU returned +345. 2% versus PDFS's +276. 8%. 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), Cohu, Inc.

(COHU) is the lower-risk stock at 2. 13β versus PDF Solutions, Inc. 's 2. 21β — meaning PDFS is approximately 3% more volatile than COHU relative to the S&P 500. On balance sheet safety, PDF Solutions, Inc. (PDFS) carries a lower debt/equity ratio of 2% versus 46% for Cohu, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Cohu, Inc.

(COHU) is pulling ahead at 12. 7% versus 8. 2% for PDF Solutions, Inc. (PDFS). On earnings-per-share growth, the picture is similar: PDF Solutions, Inc. grew EPS 25. 5% year-over-year, compared to -6. 7% for Cohu, Inc.. Over a 3-year CAGR, PDFS leads at 17. 3% 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.

PDF Solutions, Inc.

(PDFS) is the more profitable company, earning 2. 3% net margin versus -16. 4% for Cohu, Inc. — meaning it keeps 2. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PDFS leads at -0. 3% versus -13. 3% for COHU. At the gross margin level — before operating expenses — PDFS leads at 69. 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, PDF Solutions, Inc.

(PDFS) trades at 43. 1x forward P/E versus 93. 2x for Cohu, Inc. — 50. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for COHU: 0. 3% to $49. 75.

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, Cohu, Inc.

(COHU) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+345. 2% 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 (COHU: +345. 2%, PDFS: +276. 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.

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

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.