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Monolithic Power Systems, Inc.

MPWR · NASDAQ

Market closed$1,312.00$6.35 (+0.49%)After hours $1,311.47 · -0.04%

Key statistics

Previous close$1,305.65
Open$1,248.73
Day high$1,343.44
Day low$1,231.00
52-week high$1,714.09
52-week low$702.32
Market cap64.46B
Volume985.31K
Average volume872.62K
P/E ratio69.68
Forward P/E—
EPS18.83
Dividend yield+0.54%

Market context

Why it moved

MPWR edged higher as IBM's CEO commentary highlighting stronger enterprise AI infrastructure spending boosted demand expectations for Monolithic Power Systems' power management chips used in data center servers, while KeyCorp's maintained Overweight rating and raised earnings forecasts further supported bullish sentiment.

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What is happening

Recent company-specific developments and publisher coverage.

July 18, 2026Monolithic Power Systems edged up during Thursday's regular session but is pulling back in after-hours trade, caught in a broad semiconductor sell-off as investors rotate out of AI chip names. The sector faces a 'show me' moment ahead of hyperscaler earnings, with JPMorgan warning that the next leg higher for chips hinges on cloud giants reaffirming AI capex commitments. Adding to caution, MPWR's EVP of Worldwide Sales sold $20.2M in shares on July 15, and the stock's premium valuation — near 95x earnings versus an industry average around 60x — leaves little room for disappointment. Investors are also looking ahead to MPWR's Q2 2026 earnings report on July 30, where strong guidance (revenue of $890M–$910M, ~36% YoY growth) and AI data center momentum will be in focus.

0.4863

July 17, 2026Monolithic Power Systems fell sharply, caught in a broad semiconductor sector selloff triggered by TSMC's Q2 earnings report. Despite TSMC posting a 77% jump in quarterly profit, investors focused on its elevated capital expenditure guidance of $60–$64 billion and a Q3 gross margin outlook roughly 70 basis points below consensus, sparking concerns that scaling AI manufacturing capacity will compress near-term free cash flow across the sector. The decline retraced a portion of MPWR's 6.6% surge on July 14, when cooler June CPI data and IBM's comments validating firm AI hardware demand had lifted the stock. With Q2 2026 earnings scheduled for July 30, investors are weighing MPWR's strong AI data center exposure and analyst consensus target near $1,800 against its premium ~97x P/E valuation and the sector's broader repricing of AI-linked multiples.

-3.4754

July 16, 2026Monolithic Power Systems declined despite a broader semiconductor rebound, as profit-taking and valuation concerns weighed on the high-multiple stock even as peers rallied. The session was volatile — shares touched an intraday high of $1,406 before reversing sharply — amid choppy sector sentiment following a rocky stretch for chip stocks that saw the Philadelphia Semiconductor Index fall over 11% from its June peak. Investors are now focused on MPWR's Q2 2026 earnings report scheduled for July 30, where management has guided for revenue of $890M–$910M (roughly 36% YoY growth), driven by an 85%+ Enterprise Data growth floor. Analyst consensus remains bullish with an average 12-month price target near $1,801.

-1.7255

July 15, 2026Monolithic Power Systems surged nearly 6.6%, outperforming the broader technology sector (XLK essentially flat) as a cooler-than-expected June CPI report — headline inflation dropping to 3.5% from 4.2% — sparked a broad semiconductor rally and relieved pressure on high-multiple growth stocks. The macro tailwind arrived just as MPWR announced it will report Q2 2026 results on July 30, stoking investor anticipation ahead of a quarter where management had guided for over 50% enterprise data segment growth. Despite Monday's sector-wide chip selloff driven by AI valuation concerns and Iran-linked oil price spikes, Tuesday's inflation relief and renewed AI infrastructure optimism swiftly reversed sentiment for MPWR, whose Q1 revenue of $804.2M (+26% YoY) and strong analyst consensus (median price target ~$1,662) underscore the bullish fundamental backdrop.

6.5844

July 14, 2026Monolithic Power Systems fell sharply, caught in a broad semiconductor sector selloff triggered by renewed U.S.-Iran military tensions that rattled risk sentiment and sent oil prices surging. The decline came amid a wider chip stock retreat—with the Philadelphia Semiconductor Index down over 11% from its June record high—as investors weighed elevated valuations, profit-taking, and a sharp plunge in SK Hynix shares. Adding to MPWR's headwinds, law firm Kahn Swick & Foti recently announced an investigation into the company's officers and directors over allegations tied to undisclosed Nvidia order cancellations and product performance issues with Blackwell chips, keeping overhang on the stock even as management guided for $890–$910M in Q2 revenue and 50%+ enterprise data growth in 2026.

-4.536

July 11, 2026Monolithic Power Systems declined modestly, pulling back from recent highs as the broader semiconductor sector digested a volatile week marked by Samsung's record-but-disappointing earnings and ensuing AI spending concerns. Despite the session's dip, MPWR remains well-supported by strong fundamentals heading into its upcoming Q2 earnings report, where analysts expect EPS of $4.83—up 64% year-over-year—and full-year EPS of $20.13, up 57%. The company's raised enterprise data segment guidance of 85% year-over-year growth and expanded manufacturing capacity target of $6B underpin Wall Street's consensus 'Strong Buy' with a mean price target of ~$1,812, implying ~34% upside from current levels.

-1.5566

July 10, 2026Monolithic Power Systems advanced sharply, outperforming the broader XLK technology sector amid a rebound in chip stocks following Tuesday's broad semiconductor selloff triggered by Samsung's record-but-disappointing earnings. Investor attention is squarely on MPWR's upcoming Q2 earnings report, where analysts expect EPS of $4.83—up 63.7% year-over-year—and consensus carries a 'Strong Buy' with an average price target of ~$1,812, implying roughly 38% upside. The bullish case centers on MPWR's AI power management exposure, with management having raised enterprise data growth guidance to 85% YoY after a record Q1 that beat estimates.

4.4561

July 9, 2026Monolithic Power Systems rebounded sharply, outperforming semiconductor peers after the sector was hammered on Tuesday by Samsung's disappointing-relative-to-expectations earnings and reports that DeepSeek is developing its own AI chip. The recovery came as investors rotated back into AI power management names with strong fundamentals — MPWR's Q1 2026 results featured record revenue of $804.2M (+26% YoY), a beat on EPS ($5.10 vs. $4.90 est.), and a raised Enterprise Data growth floor to 85% YoY, reinforcing its position as a key supplier of power management solutions for AI servers. Analyst consensus remains "Moderate Buy" with a mean price target of ~$1,789, implying significant upside even as broader macro headwinds — Middle East tensions, rising oil prices, and Fed rate-hike concerns — weigh on tech valuations.

3.3548

Investing.com · July 17, 2026Monolithic Power Systems EVP Maurice Sciammas sells $20.2m stockYahoo Finance UK · July 17, 2026Monolithic Power Systems (MPWR) Stock Gets An AI Boost From IBM Spending Signalswww.marketscreener.com · July 17, 2026Monolithic Power Systems Insider Sold Shares Worth $20,245,937, According to a Recent SEC FilingKavout | AI · July 16, 2026AI's Dual Catalyst: Monolithic Power Systems and Amkor Technology Surge, But Valuation Divides Their Futuresmarkets.businessinsider.com · July 14, 2026Monolithic Power Systems to Report Second Quarter 2026 Results on July 30, 2026TIKR.com · June 12, 2026Monolithic Power Systems Stock Is Up 7% Today. Here’s What the AI Power Surge Could Mean for MPWRMoomoo · May 30, 2026Monolithic Power Systems(MPWR.US) Officer Sells US$12.86 Million in Common StockInvestor's Business Daily · February 5, 2026Monolithic Power Systems Beats Estimates, Hikes Dividend
Mt Newswire · July 17, 2026Monolithic Power Systems Insider Sold Shares Worth $20,245,937, According to a Recent SEC Filing
Benzinga · July 3, 2026If You Invested $1000 In Monolithic Power Systems Stock 15 Years Ago, You Would Have This Much Today
Benzinga · June 15, 2026Here's How Much $1000 Invested In Monolithic Power Systems 5 Years Ago Would Be Worth Today
Mt Newswire · June 12, 2026Monolithic Power Systems Keeps Quarterly Dividend at $2 per Share, Payable July 15 to Shareholders of Record June 30
Benzinga · June 9, 2026$100 Invested In Monolithic Power Systems 15 Years Ago Would Be Worth This Much Today
Mt Newswire · June 1, 2026Monolithic Power Systems Insider Sold Shares Worth $12,860,500, According to a Recent SEC Filing
Mt Newswire · May 27, 2026Monolithic Power Systems Insider Sold Shares Worth $7,932,150, According to a Recent SEC Filing
Mt Newswire · May 20, 2026Monolithic Power Systems Insider Sold Shares Worth $18,736,850, According to a Recent SEC Filing

Peers

S&P 500SPX · $7,457.78-1.01%Analog Devices, Inc.ADI · $375.36-1.36%Texas Instruments IncorporatedTXN · $284.02-2.47%Infineon Technologies AGIFNNF · $72.60-2.99%ON Semiconductor CorporationON · $87.37-0.85%NXP Semiconductors N.V.NXPI · $266.53-1.53%Microchip Technology IncorporatedMCHP · $80.96-0.88%STMicroelectronics N.V.STM · $62.06-1.13%Semtech CorporationSMTC · $124.96-2.11%Power Integrations, Inc.POWI · $70.45+0.87%Skyworks Solutions, Inc.SWKS · $59.35+2.98%Marvell Technology, Inc.MRVL · $188.68+0.20%