SMTC vs SLAB vs SITM vs DIOD vs POWI

For growth investors, SiTime Corporation (SITM) is the stronger pick with 61.

2% revenue growth year-over-year, versus 4. 7% for Semtech Corporation (SMTC). Diodes Incorporated (DIOD) offers the better valuation at 78. 7x trailing P/E (48. 5x forward), making it the more compelling value choice. Analysts rate Semtech Corporation (SMTC) 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.

On trailing P/E, Diodes Incorporated (DIOD) is the cheapest at 78.

7x versus Power Integrations, Inc. at 184. 2x. On forward P/E, Diodes Incorporated is actually cheaper at 48. 5x.

Over the past 5 years, SiTime Corporation (SITM) delivered a total return of +779.

7%, compared to -8. 3% for Power Integrations, Inc. (POWI). Over 10 years, the gap is even starker: SITM returned +60. 3% versus POWI's +232. 7%. 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), Silicon Laboratories Inc.

(SLAB) is the lower-risk stock at 1. 25β versus Semtech Corporation's 2. 73β — meaning SMTC is approximately 119% more volatile than SLAB relative to the S&P 500. On balance sheet safety, SiTime Corporation (SITM) carries a lower debt/equity ratio of 0% versus 102% for Semtech Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), SiTime Corporation (SITM) is pulling ahead at 61.

2% versus 4. 7% for Semtech Corporation (SMTC). On earnings-per-share growth, the picture is similar: Semtech Corporation grew EPS 86. 7% year-over-year, compared to -30. 4% for Power Integrations, Inc.. Over a 3-year CAGR, SMTC leads at 7. 1% 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.

Power Integrations, Inc.

(POWI) is the more profitable company, earning 5. 0% net margin versus -17. 8% for Semtech Corporation — meaning it keeps 5. 0% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: SMTC leads at 6. 8% versus -18. 5% for SITM. At the gross margin level — before operating expenses — SLAB leads at 58. 2%, 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, Diodes Incorporated (DIOD) trades at 48.

5x forward P/E versus 155. 1x for SiTime Corporation — 106. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for POWI: 10. 0% to $79. 00.

In this comparison, POWI (1.

2% yield) pays a dividend. SMTC, SLAB, SITM, DIOD do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Silicon Laboratories Inc.

(SLAB) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1. 25), +375. 0% 10Y return). SiTime Corporation (SITM) carries a higher beta of 2. 56 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (SLAB: +375. 0%, SITM: +60. 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.

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: SMTC is a mid-cap quality compounder stock; SLAB is a small-cap high-growth stock; SITM is a mid-cap high-growth stock; DIOD is a small-cap quality compounder stock; POWI is a small-cap quality compounder stock. POWI pays a dividend while SMTC, SLAB, SITM, DIOD do not, making them suitable for different income and tax situations. 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.