VIAV vs KEYS vs TRMB vs COHR

For growth investors, Coherent, Inc.

(COHR) is the stronger pick with 23. 4% revenue growth year-over-year, versus -2. 6% for Trimble Inc. (TRMB). Trimble Inc. (TRMB) offers the better valuation at 35. 3x trailing P/E (20. 0x forward), making it the more compelling value choice. Analysts rate Viavi Solutions Inc. (VIAV) a "Buy" — based on 19 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, Trimble Inc.

(TRMB) is the cheapest at 35. 3x versus Viavi Solutions Inc. at 340. 3x. On forward P/E, Trimble Inc. is actually cheaper at 20. 0x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Keysight Technologies, Inc. wins at 4. 97x versus Viavi Solutions Inc. 's 12. 09x.

Over the past 5 years, Coherent, Inc.

(COHR) delivered a total return of +401. 6%, compared to -22. 0% for Trimble Inc. (TRMB). Over 10 years, the gap is even starker: COHR returned +1467% versus TRMB's +166. 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), Trimble Inc.

(TRMB) is the lower-risk stock at 1. 46β versus Coherent, Inc. 's 2. 79β — meaning COHR is approximately 91% more volatile than TRMB relative to the S&P 500. On balance sheet safety, Trimble Inc. (TRMB) carries a lower debt/equity ratio of 24% versus 89% for Viavi Solutions Inc. — giving it more financial flexibility in a downturn.

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

(COHR) is pulling ahead at 23. 4% versus -2. 6% for Trimble Inc. (TRMB). On earnings-per-share growth, the picture is similar: Viavi Solutions Inc. grew EPS 225. 0% year-over-year, compared to -71. 3% for Trimble Inc.. Over a 3-year CAGR, COHR leads at 20. 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.

Keysight Technologies, Inc.

(KEYS) is the more profitable company, earning 15. 7% net margin versus 0. 8% for Coherent, Inc. — meaning it keeps 15. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: KEYS leads at 17. 6% versus 6. 5% for VIAV. At the gross margin level — before operating expenses — TRMB leads at 68. 3%, 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, Keysight Technologies, Inc. (KEYS) is the more undervalued stock at a PEG of 4. 97x versus Viavi Solutions Inc. 's 12. 09x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Trimble Inc. (TRMB) trades at 20. 0x forward P/E versus 59. 5x for Coherent, Inc. — 39. 5x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for TRMB: 53. 6% to $95. 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, Keysight Technologies, Inc.

(KEYS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1279% 10Y return). Both have compounded well over 10 years (KEYS: +1279%, TRMB: +166. 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.

In terms of investment character: VIAV is a mid-cap quality compounder stock; KEYS is a mid-cap quality compounder stock; TRMB is a mid-cap quality compounder stock; COHR 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.