Monolithic Power Systems reported fourth quarter non-GAAP diluted EPS of $4.79, surpassing the consensus estimate of $4.73 and up 17.1% year-over-year from $4.09. Revenue for the quarter reached $751.2 million, marking a 20.8% increase compared to Q4 2024 and a 1.9% sequential rise from Q3 2025. Gross margin held steady at 55.5% non-GAAP, while operating margin improved by 0.3 percentage points year-over-year to 35.8%, reflecting disciplined cost control and strong product mix.

For the full year, Monolithic Power posted non-GAAP revenue of $2.79 billion, up 26.4% from $2.21 billion in 2024. Non-GAAP net income grew 24.5% to $858.4 million, translating to diluted EPS of $17.77 versus $14.12 a year earlier. Operating expenses rose 21.7% to $567.5 million, driven by continued investment in R&D and global expansion. The company sustained a non-GAAP operating margin of 35.2%, up 0.6 points versus 2024.

In 2025, Storage & Computing led growth with revenue of $732.5 million, up 46.0%, while Automotive delivered $592.5 million, up 43.1%. Communications revenue rose 36.8% to $309.1 million, and Industrial climbed 35.3% to $199.4 million. Consumer applications contributed $255.2 million, up 26.3%, and Enterprise Data accounted for $701.8 million, down 2.0%. This balanced performance underscores MPS’s resilience across data center, automotive electronics, and industrial power solutions.

Monolithic Power announced that Executive Vice President and CFO Bernie Blegen will retire after the 2025 annual report filing, capping a 15-year tenure including ten years as CFO. Under his leadership, the company achieved consistent above-market growth and strengthened investor trust. Corporate Controller Rob Dean, a nine-year MPS veteran, will serve as interim CFO to ensure continuity while a permanent successor is appointed.