ARM vs WDC
ARM: Arm Holdings provides the fundamental, energy-efficient CPU architecture and instruction set technology that powers nearly every smartphone and an rapidly growing share of modern high-performance computing systems. WDC: Western Digital is a data storage innovator that manufactures hard disk drives and specializes in enterprise, cloud, and edge computing storage solutions following its separation from its flash business.
Side-by-side fundamentals
| Metric | ARM | WDC | Edge |
|---|---|---|---|
| Price as of 2026-07-22 close | $283.40 | $556.67 | |
| Market cap as of 2026-07-23 | $308.3B | $188.6B | |
| P/E as of 2026-07-23 | 341.01 | 28.96 | WDC lower |
| PEG as of 2026-07-23 | 18.90 | 0.69 | WDC lower |
| Net margin as of 2026-07-23 | +18.4% | +55.3% | WDC higher |
| Gross margin as of 2026-07-23 | +97.5% | +45.4% | ARM higher |
| Operating margin as of 2026-07-23 | +18.3% | +29.5% | WDC higher |
| ROE as of 2026-07-23 | +11.9% | +90.8% | WDC higher |
| ROA as of 2026-07-23 | +9.0% | +44.1% | WDC higher |
| Debt / equity as of 2026-07-23 | 0.00 | 0.16 | ARM lower |
| Revenue growth (YoY) as of 2026-07-23 | +22.8% | +32.0% | WDC higher |
| Revenue CAGR (3y) SEC XBRL | n/a | -20.3% | |
| Dividend yield as of 2026-07-23 | n/a | +0.1% | |
| Dividend streak (yrs) SEC XBRL | n/a | 1 | |
| Beta as of 2026-07-23 | 3.88 | 2.19 | |
| 1-year return as of 2026-07-22 close | +81.1% | +730.1% | WDC higher |
Fundamentals: Finnhub, as of 2026-07-23. Filings: SEC EDGAR. Prices are delayed daily-close data.
Last updated 2026-07-22.
Informational only — NOT financial advice. All figures are delayed daily-close data from SEC EDGAR & Finnhub, shown with their as-of date; "Edge" cells are a pure numeric comparison, not a recommendation.