ATI Inc. (ATI) vs Western Digital Corporation (WDC)
A side-by-side comparison of ATI Inc. and Western Digital Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 28, 2026. Differences are shown without an overall score or investment verdict.
Different business models: ATI is classified in Industrials; WDC is classified in Technology. Margin, capital intensity, and valuation differences should be interpreted in that sector context.
ATI
ATI Inc.
$186.99IndustrialsDelayed quote: Jul 28, 2026, 4:00 PM EDT
WDC
Western Digital Corporation
$463.51TechnologyDelayed quote: Jul 28, 2026, 4:00 PM EDT
Total return — ATI vs WDC
growth of $100 · dividends reinvested · last 27yATI +1019.0%WDC +19458.0%WDC compounded faster
Log scale — wide-divergence pair
ATI WDC
ATI vs WDC: by the numbers
- •WDC is the larger company ($159.76B vs $25.52B market cap).
- •WDC trades at the lower trailing earnings multiple (29.15 vs 63.79 P/E), one valuation lens rather than an overall verdict.
- •WDC converts more revenue to profit (55.07% vs 9.26% net margin).
- •ATI grew revenue faster over the past five years (8.60% vs -6.28% CAGR).
- •WDC pays a dividend (0.10% yield), while ATI is a former payer with no current dividend run rate.
Metrics side by side
Valuation
| Metric | ATI | WDC |
|---|---|---|
| P/E ratio | 63.79 | 29.15 |
| Forward P/E | 43.33 | 49.84 |
| P/S ratio | 5.84 | 15.90 |
| P/B ratio | 15.17 | 19.34 |
| PEG ratio | 11.26 | 2.26 |
| EV / EBITDA | 33.79 | 46.88 |
| FCF yield | 2.06% | 1.55% |
Profitability
| Metric | ATI | WDC |
|---|---|---|
| Gross margin | 22.53% | 45.43% |
| Operating margin | 14.47% | 30.78% |
| Net margin | 9.26% | 55.07% |
| ROE | 24.03% | 67.00% |
| ROIC | 12.27% | 21.53% |
Dividends
| Metric | ATI | WDC |
|---|---|---|
| Dividend yield | N/A | 0.10% |
| Payout ratio | N/A | 9.42% |
Growth (annualized)
| Metric | ATI | WDC |
|---|---|---|
| Revenue CAGR (5Y) | 8.60% | -6.28% |
| EPS CAGR (5Y) | 6.43% | 12.92% |
| FCF CAGR (5Y) | 73.92% | 78.08% |
| Total return CAGR (5Y) | 56.60% | 55.69% |
Frequently asked
- Which has the lower trailing P/E, ATI or WDC?
- WDC has the lower trailing P/E: ATI trades at 63.79 and WDC at 29.15. P/E is one valuation measure and does not by itself establish which business is cheaper.
- Which has grown faster, ATI or WDC?
- Over the past five years, ATI grew revenue faster — ATI at a 8.60% CAGR versus WDC at -6.28%.
- Does ATI or WDC pay a bigger dividend?
- WDC pays a dividend (0.10% yield), while ATI is a former payer with no current dividend run rate.
- Is ATI or WDC more profitable?
- WDC runs the higher net margin — ATI at 9.26% versus WDC at 55.07%.
- How have ATI and WDC total returns compared?
- Over the past 10 years, ATI delivered 26.71% and WDC delivered 28.48% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
ATI P/E ratioWestern Digital P/E ratioATI dividend yieldWestern Digital dividend yieldATI ROEWestern Digital ROEATI operating marginWestern Digital operating marginATI revenue growthWestern Digital revenue growthATI free cash flowWestern Digital free cash flow
ATI & Western Digital appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified July 28, 2026.