SYNA vs ALGM

For growth investors, Synaptics Incorporated (SYNA) is the stronger pick with 12.

0% revenue growth year-over-year, versus -30. 9% for Allegro MicroSystems, Inc. (ALGM). Analysts rate Synaptics Incorporated (SYNA) a "Buy" — based on 32 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, Allegro MicroSystems, Inc.

(ALGM) delivered a total return of +93. 3%, compared to -19. 1% for Synaptics Incorporated (SYNA). Over 10 years, the gap is even starker: ALGM returned +170. 8% versus SYNA's +60. 9%. 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), Synaptics Incorporated (SYNA) is the lower-risk stock at 2.

28β versus Allegro MicroSystems, Inc. 's 2. 43β — meaning ALGM is approximately 6% more volatile than SYNA relative to the S&P 500. On balance sheet safety, Allegro MicroSystems, Inc. (ALGM) carries a lower debt/equity ratio of 40% versus 63% for Synaptics Incorporated — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Synaptics Incorporated (SYNA) is pulling ahead at 12.

0% versus -30. 9% for Allegro MicroSystems, Inc. (ALGM). On earnings-per-share growth, the picture is similar: Synaptics Incorporated grew EPS -138. 6% year-over-year, compared to -150. 0% for Allegro MicroSystems, Inc.. Over a 3-year CAGR, ALGM leads at -1. 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.

Synaptics Incorporated (SYNA) is the more profitable company, earning -4.

4% net margin versus -10. 1% for Allegro MicroSystems, Inc. — meaning it keeps -4. 4% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: ALGM leads at -2. 7% versus -8. 8% for SYNA. At the gross margin level — before operating expenses — SYNA leads at 44. 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, Synaptics Incorporated (SYNA) trades at 23.

9x forward P/E versus 90. 2x for Allegro MicroSystems, Inc. — 66. 3x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ALGM: -6. 5% to $44. 83.

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, Allegro MicroSystems, Inc.

(ALGM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+170. 8% 10Y return). Synaptics Incorporated (SYNA) carries a higher beta of 2. 28 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (ALGM: +170. 8%, SYNA: +60. 9%), 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.