Monolithic Power Systems
Maker of power management chips that convert and regulate electricity for AI servers, cars, and electronics.
MPS grows fast on Nvidia's AI buildout, but the same customer building its own power design is the biggest question mark hanging over that growth.
Monolithic Power Systems designs and sells power management chips that go into servers and data centers, especially those running artificial intelligence. The company has been profitable and growing for 14 years, and it has built some technical expertise and customer relationships that are genuinely hard to copy. However, Nvidia, which has been MPS's biggest customer and accounts for over one-third of its sales, has started designing its own power solutions with a different supplier called LITEON instead. This matters because Nvidia could keep shifting more orders away from MPS, and other competitors like Texas Instruments and Infineon are also competing for the same AI power chip business. The one thing that could change everything is whether Nvidia stays committed to buying from MPS going forward or continues moving that business elsewhere, plus whether MPS can win new customers on major new projects over the next couple of years.
Q2 2026 earnings on July 30, 2026 versus $890-910M guidance. A miss or Enterprise Data growth under 50% YoY would confirm the Nvidia relationship is weakening.
Outcome of the WD Wash. securities class action motion to dismiss. A denial would keep litigation live and signal deeper Nvidia-related disclosure problems.
- FY2025 revenue $2.79B, up 26.4% year over year
- 14th straight year of revenue growth
- Q4 2025 revenue record $751.2M, up 20.8% year over year
- Heavy revenue concentration in Nvidia, which is insourcing power-system design with LITEON.
- Active securities fraud class action and multiple new shareholder-fiduciary investigations in 2026.
- CFO transition in February 2026 during high-growth, high-scrutiny period.
- Wide-bandgap SiC and GaN technology shifts from Infineon and Wolfspeed could pressure product roadmap.
- Unresolved headquarters and incorporation location across filings suggests unfinished corporate restructuring.
| Rival | Direction | Evidence |
|---|---|---|
| Texas Instruments | contesting | ~19% analog market share as of June 2026, largest scale incumbent not blocked from AI power niche |
| Vicor | gaining on | ~15% share in advanced AI-accelerator power modules, reported June 2026 |
| Infineon | gaining on | Active Nvidia 800V HVDC design engagement plus ~1B euro AI revenue target, June 2026 |
| Nvidia (platform insourcing) | losing to | Co-designed GB300 PSU with LITEON, not MPS, and allegedly cut ~half of MPS orders in 2024 |
- Is Monolithic Power Systems profitable in 2026?
- Yes. Monolithic Power Systems reported FY2025 revenue of $2.79 billion, up 26.4% year over year, marking its 14th consecutive year of revenue growth. It raised its dividend 28% and returned over 72% of cumulative free cash flow to shareholders over the prior three years, as of February 5, 2026.
- Could AI replace Monolithic Power Systems?
- No, its core product is physical power-delivery silicon that AI software cannot substitute. The real threat is platform insourcing: Nvidia's GB300 NVL72 rack, detailed July 28, 2025, uses a PSU co-designed with LITEON rather than MPS, showing customers can design power systems in-house.
- Who is Monolithic Power Systems' biggest competitor?
- Texas Instruments leads analog power with about 19% market share as of June 2026, while Vicor holds roughly 15% share specifically in AI-accelerator power modules and Infineon has an active Nvidia 800V power-design engagement, all contesting MPS's data-center power niche.
- Did Nvidia cut orders from Monolithic Power Systems?
- A securities fraud class action covering February 8 to November 11, 2024 alleges Nvidia cancelled roughly half of outstanding MPS orders and planned to remove MPS from most Blackwell-generation allocations over cited performance issues. The case remained active with new law-firm investigations opened in June and July 2026.
- What is Monolithic Power Systems' market cap?
- Monolithic Power Systems had a market capitalization of approximately $68.6 to $68.7 billion as of July 24, 2026, per gurufocus.com, reflecting a high valuation built on 26%-plus revenue growth and a raised AI-datacenter power guidance floor.
- When does Monolithic Power Systems report Q2 2026 earnings?
- Monolithic Power Systems is scheduled to report Q2 2026 results on July 30, 2026, with company guidance of $890 to $910 million in revenue against a consensus estimate of about $903.3 million as of July 22, 2026.
- 2026-07-24Market cap reaches approximately $68.65 billion
- 2026-07-10Kahn Swick & Foti opens investigation into MPS officers and directors over Nvidia allegations
- 2026-06-11Securities fraud class action details reported: Nvidia allegedly cancelled half of orders
- 2026-03-31Q1 2026 revenue hits $804.19 million, up 26.1% YoY, beating consensus
- 2026-02-05Q4 2025 earnings released, dividend raised 28%, CFO Bernie Blegen announces retirement
- 2025-12-31FY2025 revenue reaches $2.79 billion, 14th straight year of growth, headcount hits 4,501
- 2025-07-28Nvidia details GB300 NVL72 PSU co-designed with LITEON, not MPS
- 2024-11-11End of class-action period alleging Nvidia cut MPS orders and Blackwell allocation
- 2024-02-08Start of securities fraud class-action period against MPS
- 2024-01MPS completes acquisition of Axign B.V., a Netherlands fabless semiconductor firm
- Q4 2025 Earnings Release (2026-02-05)
- Monolithic Power Systems (MPWR) Earnings Date and Reports 2026 (2026-07-18)
- Monolithic Power Systems (MPWR) Revenue 2005-2026 (2026-07-05)
- Monolithic Power (MPWR) Earnings Transcript (2026-02-05)
- Monolithic Power Systems Inc. Securities Fraud Class Action (2026-06-11)
- gurufocus.com (2026-07-24)
- The PMIC / Power Management IC Sector Analysis (2026-06-18)
- Monolithic Power Systems (MPWR) Number of Employees 2004-2025 (2026-06-15)
- Monolithic Power Systems Number of Employees 2026 (2026-06-29)
- MPS 10-K FY2023
- MPWR Q4 2025 Summary (2026-04-13)
- MPS CFO Transition press release (2026-02-05)