MU vs STX vs WDC vs AMAT

For growth investors, Western Digital Corporation (WDC) is the stronger pick with 50.

7% revenue growth year-over-year, versus 4. 4% for Applied Materials, Inc. (AMAT). Applied Materials, Inc. (AMAT) offers the better valuation at 47. 4x trailing P/E (37. 1x forward), making it the more compelling value choice. Analysts rate Micron Technology, Inc. (MU) a "Buy" — based on 68 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, Applied Materials, Inc.

(AMAT) is the cheapest at 47. 4x versus Seagate Technology Holdings plc at 113. 2x. On forward P/E, Micron Technology, Inc. is actually cheaper at 11. 3x — 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: Micron Technology, Inc. wins at 0. 43x versus Seagate Technology Holdings plc's 4. 23x — a PEG below 1. 0 traditionally signals the market is underpricing earnings growth.

Over the past 5 years, Western Digital Corporation (WDC) delivered a total return of +757.

7%, compared to +213. 8% for Applied Materials, Inc. (AMAT). Over 10 years, the gap is even starker: MU returned +64. 7% versus WDC's +1584%. 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), Seagate Technology Holdings plc (STX) is the lower-risk stock at 2.

04β versus Micron Technology, Inc. 's 2. 48β — meaning MU is approximately 22% more volatile than STX relative to the S&P 500. On balance sheet safety, Micron Technology, Inc. (MU) carries a lower debt/equity ratio of 28% versus 96% for Western Digital Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Western Digital Corporation (WDC) is pulling ahead at 50.

7% versus 4. 4% for Applied Materials, Inc. (AMAT). On earnings-per-share growth, the picture is similar: Micron Technology, Inc. grew EPS 984. 3% year-over-year, compared to 0. 6% for Applied Materials, Inc.. Over a 3-year CAGR, MU leads at 6. 7% 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.

Applied Materials, Inc.

(AMAT) is the more profitable company, earning 24. 7% net margin versus 16. 1% for Seagate Technology Holdings plc — meaning it keeps 24. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: AMAT leads at 29. 2% versus 20. 8% for STX. At the gross margin level — before operating expenses — AMAT leads at 48. 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.

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, Micron Technology, Inc. (MU) is the more undervalued stock at a PEG of 0. 43x versus Seagate Technology Holdings plc's 4. 23x. A PEG below 1. 0 is traditionally considered the threshold for growth-adjusted undervaluation. On forward earnings alone, Micron Technology, Inc. (MU) trades at 11. 3x forward P/E versus 52. 0x for Seagate Technology Holdings plc — 40. 7x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for AMAT: 3. 9% to $426. 39.

In this comparison, AMAT (0.

4% yield), STX (0. 4% yield) pay a dividend. MU, WDC do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, Western Digital Corporation (WDC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1584% 10Y return).

Applied Materials, Inc. (AMAT) carries a higher beta of 2. 14 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (WDC: +1584%, AMAT: +20. 1%), 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: MU is a large-cap high-growth stock; STX is a mid-cap high-growth stock; WDC is a mid-cap high-growth stock; AMAT is a large-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.