ALMU vs AAOI

For growth investors, Aeluma, Inc.

(ALMU) is the stronger pick with 407. 9% revenue growth year-over-year, versus 82. 8% for Applied Optoelectronics, Inc. (AAOI). Analysts rate Aeluma, Inc. (ALMU) a "Buy" — based on 1 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.

Over the past 5 years, Applied Optoelectronics, Inc.

(AAOI) delivered a total return of +1878%, compared to +1121% for Aeluma, Inc. (ALMU). Over 10 years, the gap is even starker: AAOI returned +1352% versus ALMU's +1120%. 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), Aeluma, Inc.

(ALMU) is the lower-risk stock at 2. 89β versus Applied Optoelectronics, Inc. 's 4. 10β — meaning AAOI is approximately 42% more volatile than ALMU relative to the S&P 500. On balance sheet safety, Aeluma, Inc. (ALMU) carries a lower debt/equity ratio of 5% versus 23% for Applied Optoelectronics, Inc. — giving it more financial flexibility in a downturn.

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

(ALMU) is pulling ahead at 407. 9% versus 82. 8% for Applied Optoelectronics, Inc. (AAOI). On earnings-per-share growth, the picture is similar: Applied Optoelectronics, Inc. grew EPS 85. 8% year-over-year, compared to 37. 8% for Aeluma, Inc.. 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.

Applied Optoelectronics, Inc.

(AAOI) is the more profitable company, earning -8. 4% net margin versus -64. 8% for Aeluma, Inc. — meaning it keeps -8. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AAOI leads at -12. 0% versus -45. 9% for ALMU. At the gross margin level — before operating expenses — ALMU leads at 59. 6%, 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.

Analyst consensus price targets imply the most upside for ALMU: 2.

4% to $25. 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, Applied Optoelectronics, Inc.

(AAOI) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1352% 10Y return). Aeluma, Inc. (ALMU) carries a higher beta of 2. 89 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (AAOI: +1352%, ALMU: +1120%), 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.