MTSI vs COHU vs AEHR vs LITE

For growth investors, MACOM Technology Solutions Holdings, Inc.

(MTSI) is the stronger pick with 32. 6% revenue growth year-over-year, versus 12. 7% for Cohu, Inc. (COHU). Lumentum Holdings Inc. (LITE) offers the better valuation at 2412. 9x trailing P/E (114. 4x forward), making it the more compelling value choice. Analysts rate MACOM Technology Solutions Holdings, Inc. (MTSI) a "Buy" — based on 23 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, MACOM Technology Solutions Holdings, Inc.

is actually cheaper at 76. 9x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Aehr Test Systems (AEHR) delivered a total return of +38.

9%, compared to +22. 2% for Cohu, Inc. (COHU). Over 10 years, the gap is even starker: AEHR returned +70. 3% versus COHU's +330. 2%. 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), MACOM Technology Solutions Holdings, Inc.

(MTSI) is the lower-risk stock at 1. 75β versus Aehr Test Systems's 4. 77β — meaning AEHR is approximately 173% more volatile than MTSI relative to the S&P 500. On balance sheet safety, Aehr Test Systems (AEHR) carries a lower debt/equity ratio of 9% versus 2% for Lumentum Holdings Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), MACOM Technology Solutions Holdings, Inc.

(MTSI) is pulling ahead at 32. 6% versus 12. 7% for Cohu, Inc. (COHU). On earnings-per-share growth, the picture is similar: Lumentum Holdings Inc. grew EPS 104. 6% year-over-year, compared to -170. 2% for MACOM Technology Solutions Holdings, Inc.. Over a 3-year CAGR, MTSI leads at 12. 7% 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.

Lumentum Holdings Inc.

(LITE) is the more profitable company, earning 1. 6% net margin versus -16. 4% for Cohu, Inc. — meaning it keeps 1. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MTSI leads at 13. 4% versus -13. 3% for COHU. At the gross margin level — before operating expenses — MTSI leads at 54. 9%, 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, MACOM Technology Solutions Holdings, Inc.

(MTSI) trades at 76. 9x forward P/E versus 114. 4x for Lumentum Holdings Inc. — 37. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for COHU: 4. 8% 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, MACOM Technology Solutions Holdings, Inc.

(MTSI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+795. 9% 10Y return). Lumentum Holdings Inc. (LITE) carries a higher beta of 2. 69 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (MTSI: +795. 9%, LITE: +36. 4%), 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: MTSI is a mid-cap high-growth stock; COHU is a small-cap quality compounder stock; AEHR is a small-cap quality compounder stock; LITE 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.