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ARM Holdings vs Monolithic Power Systems

ARM Holdings is the larger business, with $4.92bn of revenue in fiscal 2026 against $2.79bn for Monolithic Power Systems (1.8 times as much). Monolithic Power Systems grew faster (26.4% against 22.8%). Monolithic Power Systems kept more of each dollar of sales as profit: a net margin of 22.3% against 18.4%. ARM Holdings carries less debt relative to equity (0.0% against 0.0%).

Latest fiscal yearARM HoldingsARM, 2026Monolithic Power SystemsMPWR, 2025
Revenue $4.92bn $2.79bn
Revenue growth 22.8% 26.4%
Net income $904m $621m
Operating margin 18.3% 26.1%
Net margin 18.4% 22.3%
Return on equity 12.0% 19.2%
Free cash flow $979m $666m
Cash $2.75bn $1.10bn
Total debt $0 $0
Debt to equity 0.0% 0.0%
Dividend per share — $6.24
Dividend yield — 0.5%
Share buybacks — $6.6m
Employees — 4,501
Market value $215.69bn $65.53bn
Price vs our value range — Above our value range
Moat score — 80 (Strong)
Insider trades, 12 months 0 buys, 41 sales 0 buys, 313 sales

Each figure is from the company's latest annual report and links to the page it comes from. Fiscal years can end on different dates. Market value and the value verdict use the delayed price shown on the stock pages. Not a recommendation.

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Figures from each company's latest annual report filed with the SEC (10-K or 20-F), as reported, with the fiscal year shown. Not investment advice. How we read filings: methodology.