VICR vs MPWR vs POWI vs TXN vs ADI

For growth investors, Monolithic Power Systems, Inc.

(MPWR) is the stronger pick with 26. 4% revenue growth year-over-year, versus 5. 9% for Power Integrations, Inc. (POWI). Texas Instruments Incorporated (TXN) offers the better valuation at 52. 3x trailing P/E (37. 8x forward), making it the more compelling value choice. Analysts rate Vicor Corporation (VICR) a "Buy" — based on 7 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, Texas Instruments Incorporated (TXN) is the cheapest at 52.

3x versus Power Integrations, Inc. at 184. 2x. On forward P/E, Analog Devices, Inc. is actually cheaper at 35. 8x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Vicor Corporation wins at 2. 10x versus Analog Devices, Inc. 's 5. 25x.

Over the past 5 years, Monolithic Power Systems, Inc.

(MPWR) delivered a total return of +366. 2%, compared to -8. 3% for Power Integrations, Inc. (POWI). Over 10 years, the gap is even starker: VICR returned +27. 0% 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), Texas Instruments Incorporated (TXN) is the lower-risk stock at 1.

11β versus Vicor Corporation's 2. 79β — meaning VICR is approximately 152% more volatile than TXN relative to the S&P 500. On balance sheet safety, Monolithic Power Systems, Inc. (MPWR) carries a lower debt/equity ratio of 1% versus 95% for Texas Instruments Incorporated — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Monolithic Power Systems, Inc.

(MPWR) is pulling ahead at 26. 4% versus 5. 9% for Power Integrations, Inc. (POWI). On earnings-per-share growth, the picture is similar: Vicor Corporation grew EPS 1764% year-over-year, compared to -65. 2% for Monolithic Power Systems, Inc.. Over a 3-year CAGR, MPWR leads at 15. 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.

Vicor Corporation (VICR) is the more profitable company, earning 29.

1% net margin versus 5. 0% for Power Integrations, Inc. — meaning it keeps 29. 1% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: TXN leads at 34. 1% versus 4. 8% for POWI. At the gross margin level — before operating expenses — ADI leads at 61. 5%, 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.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, Vicor Corporation (VICR) is the more undervalued stock at a PEG of 2. 10x versus Analog Devices, Inc. 's 5. 25x. Both stocks trade at elevated growth-adjusted valuations, so expected growth needs to materialise. On forward earnings alone, Analog Devices, Inc. (ADI) trades at 35. 8x forward P/E versus 94. 3x for Vicor Corporation — 58. 5x 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, TXN (1.

9% yield), POWI (1. 2% yield), ADI (0. 9% yield), MPWR (0. 4% yield) pay a dividend. VICR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Texas Instruments Incorporated (TXN) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.

11), 1. 9% yield, +471. 6% 10Y return). Monolithic Power Systems, Inc. (MPWR) 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 (TXN: +471. 6%, MPWR: +24. 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.

In terms of investment character: VICR is a mid-cap quality compounder stock; MPWR is a mid-cap high-growth stock; POWI is a small-cap quality compounder stock; TXN is a large-cap quality compounder stock; ADI is a mid-cap high-growth stock. POWI, TXN, ADI pay a dividend while VICR, MPWR 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.