This article was automatically generated by MarketWatch using technology from Automated Insights.
Shares of Monolithic Power Systems Inc. (MPWR) slid 4.11% to $1,486.33 Monday, on what proved to be an all-around mixed trading session for the stock market, with the Dow Jones Industrial Average rising 0.32% to 49,686.12 and the S&amp;P 500 Index falling 0.07% to 7,403.05.
This was the stock's third consecutive day of losses.
Monolithic Power Systems Inc. closed 11.29% below its 52-week high of $1,675.42, which the company achieved on May 13th.
The stock underperformed when compared to some of its competitors Monday, as Texas Instruments Inc. (TXN) fell 0.70% to $300.60, Analog Devices Inc. (ADI) rose 0.26% to $418.58, and NXP Semiconductors N.V. (NXPI) rose 0.06% to $291.68.
Trading volume (806,298) eclipsed its 50-day average volume of 588,281.
Data source: Dow Jones Market Data, FactSet. Data compiled May 18, 2026.
This content was created by MarketWatch, which is operated by Dow Jones &amp; Co. MarketWatch is published independently from Dow Jones Newswires and The Wall Street Journal.
(END) Dow Jones Newswires
05-18-26 1642ET

MPWR

SOXX

FTXL

SOXL

Monolithic Power Systems Inc. (MPWR) shares fell 4.11% to $1,486.33 on Monday, marking the third consecutive day of losses. The stock is now 11.29% below its 52-week high of $1,675.42. In comparison, competitors Texas Instruments Inc. and Analog Devices Inc. had mixed performances, with Texas Instruments down 0.70% and Analog Devices up 0.26%. Trading volume for MPWR was 806,298, surpassing its 50-day average of 588,281.

MarketWatch Automated

Monolithic Power

iShares Semiconductor ETF

First Trust Nasdaq Food & Semicon

VanEck Semiconductor ETF

SPDR S&P Semicon

Direxion Semicon Bull 3X

Invesco Semiconductors ETF

Dow Jones Industrial Average

Texas Instruments

Analog Devices

NXP Semiconductors

Monolithic Power Systems Inc. Stock Underperforms Monday When Compared To Competitors