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Company Profile

MPWR insider trades (13 months) →

Today's multi-factor rank: 262 of 466 · see the ranking

Monolithic Power Systems, Inc. (MPWR): Quantitative Analysis

Monolithic Power Systems, Inc. (MPWR) — Technology — Semiconductors. MPWR is in the S&P 500 today. Model factor scores and market data, recalculated every trading day.

So far in 2026, MPWR has returned +34.8% against +12.2% for the S&P 500 (SPY): total return, dividends included on both sides, from Dec 31, 2025 to Sep 18, 2026.

MPWR ranks 262 of 466 on today's multifactor score, and 49 of the 83 Technology companies that score. Its strongest factor is quality (Z 0.46, ranked 79 of 473); its weakest is value (Z -0.82, ranked 480 of 494). Each factor ranks only the companies with data for it, and the multifactor score only those with all four: that is why the totals differ.

Factor scores

The Z-Score is how many standard deviations the company sits from the index average: 0 is average, positive is better than average, negative is worse.

FactorZ-ScoreRank
Multifactor-0.098262 of 466 ↓8
Momentum0.312150 of 497 ↓19
Value-0.821480 of 494 ↓2
Quality0.45979 of 473 =
Growth-0.343362 of 494 =

Market data

MetricValue
Price$1,217.80
Market Cap59.85B
P/E71.43
Revenue (last 12 months)3.27B
Price / book15.36
Book value per share$79.27
52-week range$833.18 – $1,714.09
Dividend yield0.68%
Beta1.66
Average volume875,446
Shares outstanding49.14M
Short interest (% of float)5.47% (as of Aug 31, 2026)

When does MPWR report earnings? 10 of its last 10, after the close →

What are MPWR insiders doing? 101 transactions filed with the SEC, of them 64 sells, the last one on Aug 31, 2026 →

Data as of Sep 18, 2026. Source: point-in-time SEC fundamentals and closing prices. Method and formulas are on the home page.

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S&P 500 market gravity