POAS vs AAOI vs LITE vs COHR

For growth investors, Phaos Technology Holdings (Cayman) Limited (POAS) is the stronger pick with 189.

3% revenue growth year-over-year, versus 21. 0% for Lumentum Holdings Inc. (LITE). Lumentum Holdings Inc. (LITE) offers the better valuation at 2682. 1x trailing P/E (120. 9x forward), making it the more compelling value choice. Analysts rate Applied Optoelectronics, Inc. (AAOI) a "Buy" — based on 16 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, Coherent, Inc.

is actually cheaper at 68. 7x — notably different from the trailing picture, reflecting expected earnings growth.

Over the past 5 years, Applied Optoelectronics, Inc.

(AAOI) delivered a total return of +25. 4%, compared to -39. 0% for Phaos Technology Holdings (Cayman) Limited (POAS). Over 10 years, the gap is even starker: LITE returned +40. 5% versus POAS'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), Phaos Technology Holdings (Cayman) Limited (POAS) is the lower-risk stock at 0.

14β versus Applied Optoelectronics, Inc. 's 4. 10β — meaning AAOI is approximately 2800% more volatile than POAS relative to the S&P 500. On balance sheet safety, Applied Optoelectronics, Inc. (AAOI) carries a lower debt/equity ratio of 23% versus 2% for Lumentum Holdings Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Phaos Technology Holdings (Cayman) Limited (POAS) is pulling ahead at 189.

3% versus 21. 0% for Lumentum Holdings Inc. (LITE). On earnings-per-share growth, the picture is similar: Lumentum Holdings Inc. grew EPS 104. 6% year-over-year, compared to 71. 7% for Coherent, Inc.. Over a 3-year CAGR, AAOI leads at 26. 9% 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 -125. 3% for Phaos Technology Holdings (Cayman) Limited — meaning it keeps 1. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: COHR leads at 9. 4% versus -132. 9% for POAS. At the gross margin level — before operating expenses — POAS leads at 47. 7%, 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, Coherent, Inc.

(COHR) trades at 68. 7x forward P/E versus 201. 4x for Applied Optoelectronics, Inc. — 132. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for LITE: -7. 4% to $918. 67.

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, Phaos Technology Holdings (Cayman) Limited (POAS) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

14)). Applied Optoelectronics, Inc. (AAOI) carries a higher beta of 4. 10 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (POAS: -39. 0%, AAOI: +20. 3%), 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.

These companies operate in different sectors (POAS (Healthcare) and AAOI (Technology) and LITE (Technology) and COHR (Technology)), which means they face different economic cycles, regulatory environments, and macro sensitivities — making direct comparison nuanced.

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.