Power management chips maker Monolithic Power Systems (NASDAQ: MPWR) reported Q2 CY2026 results beating Wall Street’s revenue expectations, with sales up 47.6% year on year to $980.6 million. On top of that, next quarter’s revenue guidance ($1.15 billion at the midpoint) was surprisingly good and 16.5% above what analysts were expecting. Its non-GAAP profit of $6.50 per share was 10.5% above analysts’ consensus estimates.

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“Our results demonstrate the strength of our diversified model and our continued success in transforming from a chip-only, semiconductor supplier to a full service solutions provider,” said Michael Hsing, CEO and founder of MPS.

Company Overview

Founded in 1997 by its longtime CEO Michael Hsing, Monolithic Power Systems (NASDAQ: MPWR) is an analog and mixed signal chipmaker that specializes in power management chips meant to minimize total energy consumption.

Revenue Growth

A company’s long-term sales performance can indicate its overall quality. Any business can put up a good quarter or two, but many enduring ones grow for years. Thankfully, Monolithic Power Systems’s 25.8% annualized revenue growth over the last five years was incredible. Its growth surpassed the average semiconductor company and shows its offerings resonate with customers, a great starting point for our analysis. Semiconductors are a cyclical industry, and long-term investors should be prepared for periods of high growth followed by periods of revenue contractions (which can sometimes offer opportune times to buy).

We at StockStory place the most emphasis on long-term growth, but within semiconductors, a half-decade historical view may miss new demand cycles or industry trends like AI. Monolithic Power Systems’s annualized revenue growth of 31.5% over the last two years is above its five-year trend, suggesting its demand was strong and recently accelerated.

This quarter, Monolithic Power Systems reported magnificent year-on-year revenue growth of 47.6%, and its $980.6 million of revenue beat Wall Street’s estimates by 8.6%. Beyond the beat, this marks 10 straight quarters of growth, showing that the current upcycle has had a good run - a typical upcycle usually lasts 8-10 quarters. Company management is currently guiding for a 56% year-on-year increase in sales next quarter.

Looking further ahead, sell-side analysts expect revenue to grow 26.4% over the next 12 months, a deceleration versus the last two years. This projection is underwhelming and suggests its products and services will see some demand headwinds. At least the company is tracking well in other measures of financial health.

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Product Demand & Outstanding Inventory

Days Inventory Outstanding (DIO) is an important metric for chipmakers, as it reflects a business’s capital intensity and the cyclical nature of semiconductor supply and demand. In a tight supply environment, inventories tend to be stable, allowing chipmakers to exert pricing power. Steadily increasing DIO can be a warning sign that demand is weak, and if inventories continue to rise, the company may have to downsize production.

This quarter, Monolithic Power Systems’s DIO came in at 140, which is 25 days below its five-year average. At the moment, these numbers show no indication of an excessive inventory buildup.

Key Takeaways from Monolithic Power Systems’s Q2 Results

We were impressed by Monolithic Power Systems’s strong improvement in inventory levels. We were also glad its revenue and EPS outperformed Wall Street’s estimates. Looking ahead, guidance impressed as well, coming in above expectations. Zooming out, we think this quarter featured many important positives. The stock traded up 10.5% to $1,448 immediately after reporting.

Monolithic Power Systems may have had a good quarter, but does that mean you should invest right now? When making that decision, it’s important to consider its valuation, business qualities, as well as what has happened in the latest quarter. We cover that in our actionable full research report which you can read here (it’s free).