Monolithic Power Systems vs Celestica
Power management chip designer for data centers and automotive vs Publicly traded company. Which is the better buy for your portfolio in September 2026? Plain-English answer below.
Monolithic Power Systems designs high-performance analog semiconductors targeting fast-growing end markets like AI infrastructure and EVs, while Celestica operates as an electronics manufacturing services provider living on razor-thin margins with massive revenue scale. Both companies benefit from accelerating hardware demand, but their financial profiles couldn't be more different: one captures premium margins through IP, the other competes on operational efficiency. The Monolithic Power Systems vs Celestica comparison examines return on capital, revenue quality, and exposure to the semiconductor supply chain to determine where the better business fundamentals sit.
Monolithic Power Systems designs high-performance analog semiconductors targeting fast-growing end markets like AI infrastructure and EVs, while Celestica operates as an electronics manufacturing serv...
Why It’s Moving
MPWR is drawing support from upbeat analyst calls and AI manufacturing expansion ahead of its next earnings update.
- Stifel reiterated a Buy rating on MPWR on September 10, reinforcing a constructive analyst backdrop as investors look ahead to the next earnings update.
- StoneX initiated coverage on September 3 with a Buy rating and a notably higher target range, adding to the sense that analysts see room for further upside tied to the company’s data-center exposure.
- Recent attention has also centered on capacity expansion and manufacturing scale-up, with the GlobalFoundries partnership and related production plans feeding expectations for stronger AI-related supply capabilities.
- MPWR’s next earnings report is expected on October 29, 2026, so traders are positioning around what the company says about demand trends, margins, and execution before that date.
MPWR is drawing support from upbeat analyst calls and AI manufacturing expansion ahead of its next earnings update.
- Stifel reiterated a Buy rating on MPWR on September 10, reinforcing a constructive analyst backdrop as investors look ahead to the next earnings update.
- StoneX initiated coverage on September 3 with a Buy rating and a notably higher target range, adding to the sense that analysts see room for further upside tied to the company’s data-center exposure.
- Recent attention has also centered on capacity expansion and manufacturing scale-up, with the GlobalFoundries partnership and related production plans feeding expectations for stronger AI-related supply capabilities.
- MPWR’s next earnings report is expected on October 29, 2026, so traders are positioning around what the company says about demand trends, margins, and execution before that date.
Investment Analysis
Pros
- Monolithic Power Systems reported strong revenue growth of 31% year-over-year in Q2 2025, reaching $664.6 million.
- The company is strategically focused on high-growth areas such as AI ASIC-based power solutions and advanced data center systems.
- It has maintained impressive profitability metrics, including a net margin over 73% and a return on equity around 19%.
Considerations
- Despite strong fundamentals, the stock price has experienced a slight decline post-earnings and is considered overvalued by some valuation models, trading significantly above intrinsic value estimates.
- The forward price-to-earnings ratio is relatively high at over 50, which could indicate elevated valuation risks.
- Growth in some legacy markets like communications and networking is plateauing, potentially limiting diversification benefits.
Celestica
CLS
Pros
- Celestica beat earnings estimates in Q3 2025 with EPS of $1.58, up significantly from $1.04 in the prior year.
- The company is expected to continue EPS growth, with analysts forecasting $1.60 EPS in the next quarter.
- Celestica operates globally as a major provider of supply chain solutions to equipment manufacturers and service providers, indicating a broad market presence.
Considerations
- Celestica's stock trades at a high price-to-earnings ratio above 57, suggesting investors price in substantial future growth.
- The company faces risks associated with the cyclicality of the supply chain and manufacturing outsourcing industries.
- Upcoming earnings and forward guidance remain key uncertainty points that could affect near-term stock performance.
Monolithic Power Systems (MPWR) Next Earnings Date
The next earnings date for MPWR is expected to be October 29, 2026, based on its recent reporting pattern. This release should cover Q3 2026 results. The company has not yet formally confirmed the date, so this remains an estimate rather than a scheduled announcement.
Monolithic Power Systems (MPWR) Next Earnings Date
The next earnings date for MPWR is expected to be October 29, 2026, based on its recent reporting pattern. This release should cover Q3 2026 results. The company has not yet formally confirmed the date, so this remains an estimate rather than a scheduled announcement.
Buy MPWR or CLS in Nemo
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