ALAB vs ALGM

For growth investors, Astera Labs, Inc.

Common Stock (ALAB) is the stronger pick with 115. 1% revenue growth year-over-year, versus -30. 9% for Allegro MicroSystems, Inc. (ALGM). Astera Labs, Inc. Common Stock (ALAB) offers the better valuation at 175. 4x trailing P/E (85. 8x forward), making it the more compelling value choice. Analysts rate Astera Labs, Inc. Common Stock (ALAB) a "Buy" — based on 15 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, Astera Labs, Inc.

Common Stock is actually cheaper at 85. 8x.

Over the past 5 years, Astera Labs, Inc.

Common Stock (ALAB) delivered a total return of +245. 0%, compared to +106. 7% for Allegro MicroSystems, Inc. (ALGM). Over 10 years, the gap is even starker: ALAB returned +245. 0% versus ALGM's +190. 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), Allegro MicroSystems, Inc.

(ALGM) is the lower-risk stock at 2. 43β versus Astera Labs, Inc. Common Stock's 2. 99β — meaning ALAB is approximately 23% more volatile than ALGM relative to the S&P 500. On balance sheet safety, Astera Labs, Inc. Common Stock (ALAB) carries a lower debt/equity ratio of 3% versus 40% for Allegro MicroSystems, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Astera Labs, Inc.

Common Stock (ALAB) is pulling ahead at 115. 1% versus -30. 9% for Allegro MicroSystems, Inc. (ALGM). On earnings-per-share growth, the picture is similar: Astera Labs, Inc. Common Stock grew EPS 290. 6% year-over-year, compared to -150. 0% for Allegro MicroSystems, Inc.. Over a 3-year CAGR, ALAB leads at 120. 2% 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.

Astera Labs, Inc.

Common Stock (ALAB) is the more profitable company, earning 25. 7% net margin versus -10. 1% for Allegro MicroSystems, Inc. — meaning it keeps 25. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ALAB leads at 20. 3% versus -2. 7% for ALGM. At the gross margin level — before operating expenses — ALAB leads at 75. 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, Astera Labs, Inc.

Common Stock (ALAB) trades at 85. 8x forward P/E versus 96. 7x for Allegro MicroSystems, Inc. — 10. 9x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ALAB: -6. 0% to $201. 13.

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, Astera Labs, Inc.

Common Stock (ALAB) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+245. 0% 10Y return). Allegro MicroSystems, Inc. (ALGM) carries a higher beta of 2. 43 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ALAB: +245. 0%, ALGM: +190. 2%), 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: ALAB is a mid-cap high-growth stock; ALGM is a small-cap quality compounder 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.