10-QPeriod: Q3 FY2025

MONOLITHIC POWER SYSTEMS INC Quarterly Report for Q3 Ended Sep 30, 2025

Filed November 5, 2025For Securities:MPWR

Summary

Monolithic Power Systems, Inc. (MPWR) reported strong financial results for the quarter and nine months ended September 30, 2025, demonstrating robust revenue growth and improved profitability. Revenue increased by 18.9% year-over-year for the quarter and 28.6% for the year-to-date period, driven by significant volume increases across key end markets, particularly Storage and Computing and Automotive. The company maintained healthy gross margins above 55%, indicating effective cost management despite increased shipment volumes. Net income also saw substantial growth, up 23.3% for the quarter and 31.9% year-to-date, reflecting strong operational performance and effective expense control, with R&D and SG&A as a percentage of revenue showing favorable trends compared to the prior year. The company ended the quarter with a strong liquidity position, with over $1.26 billion in cash, cash equivalents, and short-term investments, supporting its ongoing operations, capital return programs, and strategic investments. Key financial metrics show a positive trajectory. Operating income grew significantly, outpacing revenue growth for the nine-month period, suggesting operating leverage. The company's balance sheet remains solid, with healthy working capital and a substantial cash position, including significant cash held by foreign subsidiaries. MPWR continues to return capital to shareholders through dividends and share repurchases, with a substantial amount remaining under its authorized repurchase program. Overall, the filing indicates a company experiencing strong demand, effectively managing its operations, and strategically deploying capital.

Financial Statements
Beta

Key Highlights

  • 1Revenue grew by 18.9% to $737.2 million for the third quarter of 2025 and by 28.6% to $2,039.3 million for the first nine months of 2025, compared to the prior year periods.
  • 2Gross margin remained strong, reported at 55.1% for the third quarter and 55.2% for the nine-month period, demonstrating consistent pricing power and operational efficiency.
  • 3Net income increased by 23.3% to $178.3 million for the third quarter and by 31.9% to $445.8 million for the nine-month period, indicating strong bottom-line performance.
  • 4The company maintained a robust liquidity position, ending the quarter with $1.27 billion in cash, cash equivalents, and short-term investments.
  • 5Significant revenue growth was observed in the Storage and Computing (29.6% QTD, 56.2% YTD) and Automotive (36.1% QTD, 54.6% YTD) end markets.
  • 6Operating income increased by 18.9% for the quarter and 38.0% for the nine-month period, reflecting effective management of operating expenses.
  • 7The company continues to return capital to shareholders, with $495.3 million remaining under its stock repurchase program and ongoing dividend payments.

Frequently Asked Questions

The primary drivers of Monolithic Power Systems' revenue growth were higher shipment volumes across its key end markets. Specifically, the Storage and Computing and Automotive segments showed substantial increases, contributing significantly to the overall top-line performance.

Monolithic Power Systems maintained strong gross margins above 55% through effective cost management and product mix strategies. While there was a slight decrease in gross margin percentage compared to the prior year, this was primarily attributed to product mix, with operational efficiencies and management of cost of revenue contributing to the overall healthy margin.

The company exhibits strong financial health, with a robust liquidity position. As of September 30, 2025, MPWR held $1.27 billion in cash, cash equivalents, and short-term investments, which is a significant increase from the prior year-end. This strong cash balance provides ample resources for operations, capital expenditures, and shareholder returns.

Yes, the company is involved in ongoing legal proceedings, including a securities class action lawsuit and consolidated shareholder derivative suits filed in early 2025. While the company believes these lawsuits are meritless and intends to defend them vigorously, they represent a potential risk. The filing also notes that there have been no material changes to its previously disclosed risk factors since the prior annual report.