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MPWR: what changed in its latest quarter. Quarter ended Sep 30, 2026 vs the same quarter a year earlier, from MONOLITHIC POWER SYSTEMS, INC.’s SEC filing.

2026-11-09 · MPWR

MPWR: what changed in its latest quarter

Quarter ended Sep 30, 2026 vs the same quarter a year earlier, from MONOLITHIC POWER SYSTEMS, INC.’s SEC filing.

The story in plain words

Monday, November 9, 2026. MPWR: what changed in its latest quarter. Quarter ended Sep 30, 2026 vs the same quarter a year earlier, from MONOLITHIC POWER SYSTEMS, INC.’s SEC filing.

What the data shows for Monolithic Power Systems (MPWR): Revenue growth: +63.1% vs the same quarter a year earlier. EPS growth: +47.3% vs the same quarter a year earlier. Gross margin: +0.2 pts vs the same quarter a year earlier. Operating margin: +3.3 pts vs the same quarter a year earlier. Free cash flow: +12.1% vs the same quarter a year earlier.

About the company: Monolithic Power Systems trades as MPWR and is part of the S&P 500, in the Information Technology sector (Semiconductors), headquartered in Kirkland, Washington, founded in 1997.

This is one of CookieStocks’ daily stock stories about the biggest year-over-year changes in S&P 500 companies’ reported results, straight from SEC filings. Stories are found automatically each trading day from market data and SEC filings, and every claim is labelled as observed, calculated or a possible contributor. Statistics only, not investment advice.

Prove it

Every claim on the graphic, labelled: observed (straight from the data), calculated (worked out from it), or possible contributor (lines up in time, not a confirmed cause).

  • OBSERVED
    Revenue growth: +63.1% vs the same quarter a year earlierHow: this year ÷ last year − 1 · Source: SEC EDGAR · Nov 3, 2026, 3:00 PM ET
  • OBSERVED
    EPS growth: +47.3% vs the same quarter a year earlierHow: this year ÷ last year − 1 · Source: SEC EDGAR · Nov 3, 2026, 3:00 PM ET
  • OBSERVED
    Gross margin: +0.2 pts vs the same quarter a year earlierHow: this year’s margin − last year’s margin · Source: SEC EDGAR · Nov 3, 2026, 3:00 PM ET
  • OBSERVED
    Operating margin: +3.3 pts vs the same quarter a year earlierHow: this year’s margin − last year’s margin · Source: SEC EDGAR · Nov 3, 2026, 3:00 PM ET
  • OBSERVED
    Free cash flow: +12.1% vs the same quarter a year earlierHow: this year ÷ last year − 1 · Source: SEC EDGAR · Nov 3, 2026, 3:00 PM ET

Monolithic Power Systems (MPWR) financials and filings →

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Statistics only, not investment advice. Past moves don’t predict future ones. Data as of Nov 9, 2026, 4:35 PM ET.