Monolithic Power Systems Stock On Fire: Up 12% With 8-Day Winning Streak
Monolithic Power Systems (MPWR) stock hit day 8 of a continuous streak of days with gains, with cumulative gains over this period amounting to a 12% return. The company has gained about $4.6 Bil in value over the last 8 days, with its current market capitalization at about $44 Bil. The stock remains 63.0% above its value at the end of 2024. This compares with year-to-date returns of 16.5% for the S&P 500.
Monolithic Power Systems’ recent streak stems from robust Q3 earnings that surpassed estimates and strong guidance. Its strategic embrace of AI-driven power solutions and strong tailwinds in booming data center and diversified industrial markets further fueled the move. Positive analyst sentiment underpinned the rally.
What is the point? Momentum often precedes conviction. A multi-day win streak can signal growing investor confidence or spark follow-on buying. Tracking such trends can help you ride the strength, or prepare for a well-timed entry if momentum fades. Our take: There is not much to fear in MPWR stock given its overall Very Strong operating performance and financial condition. This is aligned with the stock’s High valuation because of which we think it is Fairly Priced (see Buy or Sell MPWR).
For quick background, MPWR provides DC-to-DC integrated circuits for voltage conversion and control in electronic systems, distributed through third-party distributors and value-added resellers.
Comparing MPWR Stock Returns With The S&P 500
The following table summarizes the return for MPWR stock vs. the S&P 500 index over different periods, including the current streak:
| Return Period | MPWR | S&P 500 |
|---|---|---|
| 1D | 0.6% | 0.3% |
| 8D (Current Streak) | 11.8% | 4.8% |
| 1M (21D) | -4.6% | -0.0% |
| 3M (63D) | 13.2% | 5.3% |
| YTD 2025 | 63.0% | 16.5% |
| 2024 | -5.6% | 23.3% |
| 2023 | 79.8% | 24.2% |
| 2022 | -27.8% | -19.4% |
However, big gains can follow sharp reversals – but how has MPWR behaved after prior drops? See MPWR Dip Buyer Analysis to learn more.
Gains and Losses Streaks: S&P 500 Constituents
There are currently 44 S&P constituents with 3 days or more of consecutive gains and 91 constituents with 3 days or more of consecutive losses.
| Consecutive Days | # of Gainers | # of Losers |
|---|---|---|
| 3D | 6 | 64 |
| 4D | 9 | 17 |
| 5D | 8 | 10 |
| 6D | 10 | 0 |
| 7D or more | 11 | 0 |
| Total >=3 D | 44 | 91 |
Key Financials for Monolithic Power Systems (MPWR)
Last 2 Fiscal Years:
| Metric | FY2023 | FY2024 |
|---|---|---|
| Revenues | $1.8 Bil | $2.2 Bil |
| Operating Income | $481.7 Mil | $539.4 Mil |
| Net Income | $427.4 Mil | $1.8 Bil |
Last 2 Fiscal Quarters:
| Metric | 2025 FQ2 | 2025 FQ3 |
|---|---|---|
| Revenues | $664.6 Mil | $737.2 Mil |
| Operating Income | $164.8 Mil | $195.2 Mil |
| Net Income | $133.7 Mil | $178.3 Mil |
While MPWR stock looks attractive given its winning streak, investing in a single stock without detailed, thorough analysis can be risky. The Trefis High Quality (HQ) Portfolio, with a collection of 30 stocks, has a track record of comfortably outperforming its benchmark that includes all 3 — the S&P 500, S&P mid-cap, and Russell 2000 indices. Why is that? As a group, HQ Portfolio stocks provided better returns with less risk versus the benchmark index; less of a roller-coaster ride, as evident in HQ Portfolio performance metrics.