Monolithic Power Systems, Inc. $MPWR Stock Sold by Vontobel Holding Ltd.

Posted by Stanley Muller on Oct 17th, 2026

Vontobel Holding Ltd. lowered its stake in Monolithic Power Systems, Inc. (NASDAQ:MPWR – Free Report) by 18.3% in the third quarter, according to the company in its most recent disclosure with the Securities and Exchange Commission (SEC). The institutional investor owned 19,540 shares of the semiconductor company’s stock after selling 4,375 shares during the period. Vontobel Holding Ltd.’s holdings in Monolithic Power Systems were worth $26,325,000 at the end of the most recent quarter.

Other hedge funds and other institutional investors have also modified their holdings of the company. BlackRock Inc. bought a new position in Monolithic Power Systems in the 2nd quarter worth approximately $7,727,289,000. State Street Corp boosted its position in Monolithic Power Systems by 4.3% in the 2nd quarter. State Street Corp now owns 2,282,186 shares of the semiconductor company’s stock valued at $3,159,219,000 after buying an additional 93,732 shares during the last quarter. Corient Private Wealth LLC boosted its position in Monolithic Power Systems by 3,719.6% in the 4th quarter. Corient Private Wealth LLC now owns 2,047,173 shares of the semiconductor company’s stock valued at $1,855,476,000 after buying an additional 1,993,576 shares during the last quarter. Invesco Ltd. boosted its position in Monolithic Power Systems by 25.9% in the 4th quarter. Invesco Ltd. now owns 1,434,689 shares of the semiconductor company’s stock valued at $1,300,345,000 after buying an additional 295,556 shares during the last quarter. Finally, Van ECK Associates Corp increased its stake in shares of Monolithic Power Systems by 42.3% in the 2nd quarter. Van ECK Associates Corp now owns 746,237 shares of the semiconductor company’s stock valued at $1,031,568,000 after buying an additional 221,666 shares during the period. Institutional investors and hedge funds own 93.46% of the company’s stock.

Key Monolithic Power Systems News

Here are the key news stories impacting Monolithic Power Systems this week:

Positive Sentiment: KeyCorp significantly raised its earnings forecasts for Monolithic Power Systems across the second half of 2026 and all of 2027. Estimates increased to $7.10 for Q3 2026, $7.56 for Q4 2026, $24.51 for FY2026, and $34.92 for FY2027, up from $29.54 previously. The firm also raised quarterly 2027 estimates to $7.49, $8.14, $9.20, and $10.06, respectively. KeyCorp maintained an “Overweight” rating and a $2,100 price target, implying substantial upside from recent trading levels.
Positive Sentiment: Monolithic Power Systems was upgraded to Zacks Rank #2 (Buy), reflecting growing optimism about its earnings outlook and potentially supporting near-term investor demand. Monolithic Upgraded to Buy: What Does It Mean for the Stock?
Neutral Sentiment: A review of a hypothetical $1,000 investment made in MPWR a decade ago highlights the company’s long-term shareholder returns, but provides limited information about current earnings or valuation drivers. Here’s How Much You’d Have If You Invested $1000 in Monolithic Power a Decade Ago
Negative Sentiment: Wall Street Zen lowered its rating on Monolithic Power Systems, adding a conflicting signal to the otherwise favorable analyst outlook. The downgrade may be contributing to selling pressure, particularly as MPWR trades at a premium valuation with a high price-to-earnings ratio. Monolithic Power Systems Stock Rating Lowered by Wall Street Zen

Insiders Place Their Bets

In related news, EVP Maurice Sciammas sold 30 shares of the company’s stock in a transaction dated Monday, August 3rd. The stock was sold at an average price of $1,343.94, for a total value of $40,318.20. Following the completion of the sale, the executive vice president owned 1,119 shares in the company, valued at approximately $1,503,868.86. This represents a 2.61% decrease in their ownership of the stock. The transaction was disclosed in a document filed with the SEC, which can be accessed through this link. The transaction was executed under a pre-arranged Rule 10b5-1 trading plan. Also, Director Kuo Wei Chang sold 50 shares of the stock in a transaction dated Monday, August 24th. The shares were sold at an average price of $1,281.57, for a total value of $64,078.50. Following the completion of the transaction, the director directly owned 515 shares in the company, valued at $660,008.55. The trade was a 8.85% decrease in their position. Additional details regarding this sale are available in the official SEC disclosure. Over the last ninety days, insiders have sold 130 shares of company stock valued at $175,397. 3.60% of the stock is owned by insiders.

Analyst Ratings Changes

A number of equities research analysts have recently weighed in on the company. Weiss Ratings upgraded Monolithic Power Systems from a “hold (c)” rating to a “hold (c+)” rating in a research report on Thursday, October 8th. Wells Fargo & Company upped their price target on Monolithic Power Systems from $1,700.00 to $1,800.00 and gave the company an “overweight” rating in a research note on Friday, July 31st. Arete Research assumed coverage on Monolithic Power Systems in a report on Thursday, August 20th. They issued a “buy” rating and a $2,013.00 price target on the stock. Rosenblatt Securities reiterated a “neutral” rating and issued a $1,575.00 price objective on shares of Monolithic Power Systems in a research report on Friday, July 31st. Finally, Raymond James Financial reiterated an “outperform” rating on shares of Monolithic Power Systems in a research report on Wednesday, August 12th. Thirteen research analysts have rated the stock with a Buy rating and three have given a Hold rating to the company. According to MarketBeat, the stock presently has a consensus rating of “Moderate Buy” and an average price target of $1,735.50.

Check Out Our Latest Research Report on Monolithic Power Systems

Monolithic Power Systems Stock Down 3.1%

MPWR stock traded down $38.34 during midday trading on Friday, reaching $1,210.86. The company’s stock had a trading volume of 834,215 shares, compared to its average volume of 755,201. Monolithic Power Systems, Inc. has a 52 week low of $833.18 and a 52 week high of $1,714.09. The stock has a market cap of $59.50 billion, a PE ratio of 74.24 and a beta of 1.68. The business’s 50-day simple moving average is $1,303.94 and its 200-day simple moving average is $1,391.23.

Monolithic Power Systems (NASDAQ:MPWR – Get Free Report) last issued its earnings results on Thursday, July 30th. The semiconductor company reported $6.50 EPS for the quarter, beating the consensus estimate of $5.87 by $0.63. The company had revenue of $980.64 million during the quarter, compared to analysts’ expectations of $903.30 million. Monolithic Power Systems had a net margin of 24.41% and a return on equity of 22.31%. The business’s revenue for the quarter was up 47.6% compared to the same quarter last year. During the same quarter in the previous year, the company posted $4.21 EPS. As a group, equities analysts forecast that Monolithic Power Systems, Inc. will post 23.86 earnings per share for the current fiscal year.

Monolithic Power Systems Announces Dividend

The business also recently disclosed a quarterly dividend, which was paid on Thursday, October 15th. Investors of record on Wednesday, September 30th were paid a dividend of $2.00 per share. The ex-dividend date of this dividend was Wednesday, September 30th. This represents a $8.00 dividend on an annualized basis and a dividend yield of 0.7%. Monolithic Power Systems’s payout ratio is 49.05%.

Monolithic Power Systems Profile

(Free Report)

Monolithic Power Systems, Inc (NASDAQ: MPWR) is a semiconductor company that designs, develops and markets high-performance power-management solutions. Its products help convert, regulate and control electrical power in electronic systems, with applications spanning computing and storage, automotive, industrial, communications infrastructure, consumer electronics and other markets.

The company’s product portfolio includes power-management integrated circuits, DC-to-DC converters, power modules, battery-charging and management solutions, LED drivers, motor drivers, voltage regulators and related analog and mixed-signal devices.