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Monolithic Power Systems, Inc. logo

NASDAQ · MPWR

Monolithic Power Systems, Inc.

Technology · Semiconductors

$1,386.29

Down-$62.87 (-4.54%)

Updated Oct 12, 2026, 5:26 PM

SID Score

7.6/10

Composite research score

Smart Money

58/100

Neutral

Market cap
47.03B
P/E ratio
24.81
Dividend yield
0.43%
52-week range
$906.33 – $1,714.09
Volume
433.75K
Avg. volume
603.65K

Price performance · MPWR

MPWR price history

1M range · 20 trading sessions · Daily adjusted prices

Prices through Oct 9, 2026

MPWR closed at $1,386.29 after 20 trading sessions, up 21.26% for the selected period.

Last close
$1,386.29
Period change
+21.26%
Period low
$1,142.46
Period high
$1,479.89
Daily close
View OHLC price history
MPWR OHLC price history, latest 40 sessions
DateOpenHighLowCloseVolume
Oct 9, 2026$1,396.53$1,401.76$1,351.26$1,386.29433.75K
Oct 8, 2026$1,405.99$1,416.62$1,349.39$1,369.80848.19K
Oct 7, 2026$1,447.64$1,450.705$1,412.68$1,425.98481.96K
Oct 6, 2026$1,487.88$1,491.64$1,458.79$1,473.69375.08K
Oct 5, 2026$1,444.412$1,482.97$1,432.38$1,479.89685.46K
Oct 2, 2026$1,406.00$1,455.99$1,393.132$1,439.73705.81K
Oct 1, 2026$1,359.98$1,368.665$1,331.00$1,360.97492.35K
Sep 30, 2026$1,353.765$1,361.44$1,324.96$1,347.22465.26K
Sep 29, 2026$1,372.05$1,374.32$1,347.85$1,355.99450.39K
Sep 28, 2026$1,353.13$1,359.76$1,320.80$1,351.20660.02K
Sep 25, 2026$1,332.63$1,377.14$1,329.47$1,367.43536.88K
Sep 24, 2026$1,317.09$1,349.64$1,313.09$1,335.55492.63K
Sep 23, 2026$1,367.08$1,371.66$1,302.10$1,355.47767.41K
Sep 22, 2026$1,278.08$1,387.455$1,271.03$1,380.621.54M
Sep 21, 2026$1,243.25$1,283.83$1,217.24$1,277.681.03M
Sep 18, 2026$1,185.52$1,221.51$1,176.21$1,217.801.43M
Sep 17, 2026$1,183.15$1,184.15$1,146.40$1,169.58950.23K
Sep 16, 2026$1,157.42$1,176.05$1,133.83$1,147.61625.21K
Sep 15, 2026$1,164.97$1,171.18$1,136.65$1,142.46557.09K
Sep 14, 2026$1,184.43$1,185.885$1,141.38$1,143.24984.7K

Latest MPWR news

The latest Smart Investors Daily articles mentioning MPWR.

Stock researchCompany · Overview

MPWR research

Overview

Company profile and research snapshot.

Company profile

Monolithic Power Systems is an analog and mixed-signal chipmaker specializing in power management solutions. Its mission is to reduce total energy consumption in end systems. It serves the computing, automotive, industrial, communications, and consumer end markets. MPS uses a fabless manufacturing model, partnering with third-party chip foundries to host its proprietary BCD process technology.

Visit company website

Analyst outlook

Consensus and target data currently published for this company.

Consensus
Buy
Average target
$1,119.00
Implied upside
—
Analysts
9
MPWR recent ratings
DateFirmRatingTarget
Sep 3, 2026StoneXBuy—
Jul 31, 2026Wells FargoOverweight—
Jul 31, 2026Truist SecuritiesBuy—
Jul 31, 2026KeybancOverweight—
Jul 31, 2026RosenblattNeutral—
Open full forecast

News briefing

Generated Oct 12, 2026, 5:15 PM

Why Is MPWR Down Today?

Monolithic Power Systems (MPWR) dropped 4.36% today despite a flurry of positive headlines highlighting record data-center sales and potential undervaluation. The sell-off suggests investors may be taking profits after a strong run, or the market is pricing in concerns about valuation at current levels despite operational excellence.

    Bottom line: MPWR's 4.36% decline appears to be a consolidation move amid conflicting sentiment: the company's operational achievements in data-center markets are genuine and impressive, yet valuation concerns are limiting further upside in the immediate term. Investors should monitor whether the stock finds support and whether margin expansion continues, as the long-term AI infrastructure thesis remains intact despite today's weakness.

    Yahoo · Oct 10, 2026

    How Record Data-Center Sales And Margin Gains At Monolithic Power Systems (MPWR) Have Changed Its Investment Story

    Monolithic Power Systems recently reported record quarterly revenue of US$980.6 million, driven by strong enterprise data demand and over 1,500 new automotive product introductions, while lifting its operating margin to 31% from 24.8% with largely unchanged gross margin. The combination of faster-growing revenue than operating expenses and quicker inventory turnover shows how Monolithic Power Systems is currently extracting more earnings power from its existing cost base, while also...

    Yahoo · Oct 10, 2026

    Monolithic Power Systems (MPWR) Could Be 25% Undervalued As Record Revenue Fuels Debate

    Monolithic Power Systems (MPWR) is back in focus after reporting record quarterly revenue, driven by enterprise data demand and a surge of new automotive products that has drawn heavier institutional trading interest. After a sharp breakout earlier in the year and a more recent consolidation, Monolithic Power Systems now trades at US$1,386.29, with a 30-day share price return of 16.88% and a 1-year total shareholder return of 54.30%. This reflects strong momentum supported by record results...

    Yahoo · Oct 10, 2026

    Monolithic Power Systems (MPWR) Stock Could Look Fully Priced On Earnings

    Monolithic Power Systems has delivered strong multi year gains, so the key question now is whether its current share price lines up with what the business earns. With the stock recently closing at US$1,386.29, investors are asking if those earnings are doing enough work to support that level. Over the past 5 years the stock has returned 198.9%, which puts a lot of weight on the argument that its earnings justify a much higher valuation than in the past. The company’s model of converting chip...

    Yahoo · Oct 9, 2026

    Top AI Semiconductor Stocks According to Stifel Analysis

    Investing.com -- Stifel analysts highlighted five top AI semiconductor stocks as data center fundamentals strengthened through the summer reporting season, even as stock performance lagged. AI stocks underwent a valuation reset in the September quarter despite underlying fundamentals remaining strong, with median next-twelve-month price-to-earnings ratios compressing from approximately 60 times to 38 times. The drawdown tracked macro conditions and sentiment rather than fundamentals, according t

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