Monolithic Power Systems · Earnings release

PRESS RELEASE

For Immediate Release

Monolithic Power Systems Announces

Results for the Third Quarter Ended September 30, 2025

Schaffhausen, Switzerland, October 30, 2025 -- Monolithic Power Systems, Inc. (“MPS”) (Nasdaq: MPWR), a fabless global company that provides high-performance, semiconductor-based power electronics solutions, today announced financial results for the quarter ended September 30, 2025.

The financial results for the quarter ended September 30, 2025 were as follows:

●

Revenue was $737.2 million for the quarter ended September 30, 2025, a 10.9% increase from $664.6 million for the quarter ended June 30, 2025 and an 18.9% increase from $620.1 million for the quarter ended September 30, 2024.

●

GAAP gross margin was 55.1% for the quarter ended September 30, 2025, compared with 55.4% for the quarter ended September 30, 2024.

●

Non-GAAP gross margin (1) was 55.5% for the quarter ended September 30, 2025, excluding the impact of $1.9 million for stock-based compensation and related expenses, $0.5 million for deferred compensation plan expense and $0.3 million for amortization of acquisition-related intangible assets, compared with 55.8% for the quarter ended September 30, 2024, excluding the impact of $1.7 million for stock-based compensation and related expenses, $0.5 million for deferred compensation plan expense and $0.3 million for amortization of acquisition-related intangible assets.

●

GAAP operating expenses were $211.0 million for the quarter ended September 30, 2025, compared with $179.4 million for the quarter ended September 30, 2024.

●

Non-GAAP operating expenses (1) were $148.3 million for the quarter ended September 30, 2025, excluding $59.0 million for stock-based compensation and related expenses and $3.7 million for deferred compensation plan expense, compared with $125.2 million for the quarter ended September 30, 2024, excluding $50.7 million for stock-based compensation and related expenses and $3.5 million for deferred compensation plan expense.

●

GAAP operating income was $195.2 million for the quarter ended September 30, 2025, compared with $164.0 million for the quarter ended September 30, 2024.

●

Non-GAAP operating income (1) was $260.6 million for the quarter ended September 30, 2025, excluding $60.9 million for stock-based compensation and related expenses, $4.2 million for deferred compensation plan expense and $0.3 million for amortization of acquisition-related intangible assets, compared with $220.8 million for the quarter ended September 30, 2024, excluding $52.4 million for stock-based compensation and related expenses, $4.0 million for deferred compensation plan expense and $0.3 million for amortization of acquisition-related intangible assets.

●

GAAP other income, net was $10.4 million for the quarter ended September 30, 2025, compared with $10.3 million for the quarter ended September 30, 2024.

●

Non-GAAP other income, net (1) was $6.6 million for the quarter ended September 30, 2025, excluding $3.8 million for deferred compensation plan income, compared with $6.4 million for the quarter ended September 30, 2024, excluding $3.9 million for deferred compensation plan income.

●

GAAP income before income taxes was $205.6 million for the quarter ended September 30, 2025, compared with $174.3 million for the quarter ended September 30, 2024.

●

Non-GAAP income before income taxes (1) was $267.2 million for the quarter ended September 30, 2025, excluding $60.9 million for stock-based compensation and related expenses, $0.4 million for net deferred compensation plan expense and $0.3 million for amortization of acquisition-related intangible assets, compared with $227.2 million for the quarter ended September 30, 2024, excluding $52.4 million for stock-based compensation and related expenses, $0.3 million for amortization of acquisition-related intangible assets and $0.1 million for net deferred compensation plan expense.

●

GAAP net income was $178.3 million and $3.71 per diluted share for the quarter ended September 30, 2025. Comparatively, GAAP net income was $144.4 million and $2.95 per diluted share for the quarter ended September 30, 2024.

●

Non-GAAP net income (1) was $227.1 million and $4.73 per diluted share for the quarter ended September 30, 2025, excluding $60.9 million for stock-based compensation and related expenses, $0.4 million for net deferred compensation plan expense, $0.3 million for amortization of acquisition-related intangible assets and $12.8 million for related tax effects, compared with $198.8 million and $4.06 per diluted share for the quarter ended September 30, 2024, excluding $52.4 million for stock-based compensation and related expenses, $0.3 million for amortization of acquisition-related intangible assets, $0.1 million for net deferred compensation plan expense and $1.5 million for related tax effects.

The financial results for the nine months ended September 30, 2025 were as follows:

●

Revenue was $2,039.3 million for the nine months ended September 30, 2025, a 28.6% increase from $1,585.4 million for the nine months ended September 30, 2024.

●

GAAP gross margin was 55.2% for the nine months ended September 30, 2025, compared with 55.3% for the nine months ended September 30, 2024.

●

Non-GAAP gross margin (1) was 55.5% for the nine months ended September 30, 2025, excluding the impact of $5.5 million for stock-based compensation and related expenses, $0.9 million for deferred compensation plan expense and $0.9 million for amortization of acquisition-related intangible assets, compared with 55.7% for the nine months ended September 30, 2024, excluding the impact of $5.2 million for stock-based compensation and related expenses, $1.1 million for deferred compensation plan expense and $0.9 million for amortization of acquisition-related intangible assets.

●

GAAP operating expenses were $596.8 million for the nine months ended September 30, 2025, compared with $500.4 million for the nine months ended September 30, 2024.

●

Non-GAAP operating expenses (1) were $419.5 million for the nine months ended September 30, 2025, excluding $169.4 million for stock-based compensation and related expenses, $7.8 million for deferred compensation plan expense and $0.1 million for amortization of acquisition-related intangible assets, compared with $340.3 million for the nine months ended September 30, 2024, excluding $151.7 million for stock-based compensation and related expenses, $8.4 million for deferred compensation plan expense and $0.1 million for amortization of acquisition-related intangible assets.

●

GAAP operating income was $528.7 million for the nine months ended September 30, 2025, compared with $376.1 million for the nine months ended September 30, 2024.

●

Non-GAAP operating income (1) was $713.3 million for the nine months ended September 30, 2025, excluding $175.0 million for stock-based compensation and related expenses, $8.7 million for deferred compensation plan expense and $1.0 million for amortization of acquisition-related intangible assets, compared with $543.4 million for the nine months ended September 30, 2024, excluding $156.9 million for stock-based compensation and related expenses, $9.5 million for deferred compensation plan expense and $1.0 million for amortization of acquisition-related intangible assets.

●

GAAP other income, net was $27.7 million for the nine months ended September 30, 2025, compared with $27.3 million for the nine months ended September 30, 2024.

●

Non-GAAP other income, net (1) was $19.7 million for the nine months ended September 30, 2025, excluding $8.0 million for deferred compensation plan income, compared with $18.2 million for the nine months ended September 30, 2024, excluding $9.2 million for deferred compensation plan income.

●

GAAP income before income taxes was $556.4 million for the nine months ended September 30, 2025, compared with $403.4 million for the nine months ended September 30, 2024.

●

Non-GAAP income before income taxes (1) was $733.1 million for the nine months ended September 30, 2025, excluding $175.0 million for stock-based compensation and related expenses, $1.0 million for amortization of acquisition-related intangible assets and $0.7 million for net deferred compensation plan expense, compared with $561.5 million for the nine months ended September 30, 2024, excluding $156.9 million for stock-based compensation and related expenses, $1.0 million for amortization of acquisition-related intangible assets and $0.3 million for net deferred compensation plan expense.

●

GAAP net income was $445.8 million and $9.28 per diluted share for the nine months ended September 30, 2025. Comparatively, GAAP net income was $337.3 million and $6.89 per diluted share for the nine months ended September 30, 2024.

●

Non-GAAP net income (1) was $623.1 million and $12.98 per diluted share for the nine months ended September 30, 2025, excluding $175.0 million for stock-based compensation and related expenses, $1.0 million for amortization of acquisition-related intangible assets, $0.7 million for net deferred compensation plan expense and $0.7 million for related tax effects, compared with $491.4 million and $10.04 per diluted share for the nine months ended September 30, 2024, excluding $156.9 million for stock-based compensation and related expenses, $1.0 million for amortization of acquisition-related intangible assets, $0.3 million for net deferred compensation plan expense and $4.1 million for related tax effects.

The following is a summary of revenue by end market (in thousands):

Three Months Ended September 30,

Nine Months Ended September 30,

End Market

Storage and Computing

$

$

$

$

Enterprise Data

Automotive

Communications

Consumer

Industrial

Total

$

$

$

$

“Our results demonstrate our continued success in transforming from a chip-only, semiconductor supplier to a full service, silicon-based solutions provider,” said Michael Hsing, CEO and founder of MPS.

Business Outlook

The following are MPS’s financial targets for the fourth quarter ending December 31, 2025:

●

G1Revenue in the range of $730.0 million to $750.0 million.

●

G2GAAP gross margin between 54.9% and 55.5%. G3Non-GAAP gross margin (1) between 55.2% and 55.8%, which excludes the impact from stock-based compensation and related expenses as well as the impact from amortization of acquisition-related intangible assets.

●

G4GAAP operating expenses between $206.8 million and $212.8 million. G5Non-GAAP operating expenses (1) between $145.5 million and $149.5 million, which excludes estimated stock-based compensation and related expenses in the range of $61.3 million to $63.3 million.

●

G6Total stock-based compensation and related expenses of $63.2 million to $65.2 million including approximately $1.9 million that would be charged to cost of goods sold.

●

G7Interest and other income in the range of $7.4 million to $7.8 million before foreign exchange gains or losses.

●

●

G9Fully diluted shares outstanding between 48.5 million and 48.9 million.

(1) Non-GAAP net income, non-GAAP net income per share, non-GAAP gross margin, non-GAAP operating expenses, non-GAAP operating income, non-GAAP other income, net and non-GAAP income before income taxes differ from net income, net income per share, gross margin, operating expenses, operating income, other income, net and income before income taxes determined in accordance with U.S. Generally Accepted Accounting Principles (“GAAP”). Non-GAAP net income and non-GAAP net income per share exclude the effect of stock-based compensation and related expenses, which include stock-based compensation expense and employer payroll taxes in relation to the stock-based compensation, net deferred compensation plan expense, amortization of acquisition-related intangible assets and related tax effects. Non-GAAP gross margin excludes the effect of stock-based compensation and related expenses, amortization of acquisition-related intangible assets and deferred compensation plan expense.

Non-GAAP operating expenses exclude the effect of stock-based compensation and related expenses, amortization of acquisition-related intangible assets and deferred compensation plan expense. Non-GAAP operating income excludes the effect of stock-based compensation and related expenses, amortization of acquisition-related intangible assets and deferred compensation plan expense. Non-GAAP other income, net excludes the effect of deferred compensation plan income. Non-GAAP income before income taxes excludes the effect of stock-based compensation and related expenses, amortization of acquisition-related intangible assets and net deferred compensation plan expense. Projected non-GAAP gross margin excludes the effect of stock-based compensation and related expenses, and amortization of acquisition-related intangible assets. Projected non-GAAP operating expenses exclude the effect of stock-based compensation and related expenses.

These non-GAAP financial measures are not prepared in accordance with GAAP and should not be considered as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP. A schedule reconciling non-GAAP financial measures is included at the end of this press release. MPS utilizes both GAAP and non-GAAP financial measures to assess what it believes to be its core operating performance and to evaluate and manage its internal business and assist in making financial operating decisions. MPS believes that the inclusion of non-GAAP financial measures, together with GAAP measures, provides investors with an alternative presentation useful to investors’ understanding of MPS’s core operating results and trends.

Additionally, MPS believes that the inclusion of non-GAAP measures, together with GAAP measures, provides investors with an additional dimension of comparability to similar companies. However, investors should be aware that non-GAAP financial measures utilized by other companies are not likely to be comparable in most cases to the non-GAAP financial measures used by MPS. See the GAAP to non-GAAP reconciliations in the tables set forth below.

Earnings Commentary

Earnings commentary on the results of operations for the quarter ended September 30, 2025 is available under the Investor Relations page on the MPS website.

Earnings Webinar

MPS plans to host a question-and-answer webinar covering its financial results at 2:00 p.m. PT / 5:00 p.m. ET, October 30, 2025. The live event will be held via a Zoom webcast, which can be accessed at: https://mpsic.zoom.us/j/95600837087. The Zoom webcast can also be accessed live over the phone by dialing (669) 444-9171; the webcast ID is 95600837087. A replay of the event will be archived and available for replay for one year under the Investor Relations page on the MPS website.

Safe Harbor Statement

This press release contains, and statements that will be made during the accompanying earnings webinar will contain, forward-looking statements, as that term is defined in the Private Securities Litigation Reform Act of 1995, including under the “Business Outlook” section, including, among other things, (i) projected revenue, GAAP and non-GAAP gross margin, GAAP and non-GAAP operating expenses, stock-based compensation and related expenses, amortization of acquisition-related intangible assets, other income before foreign exchange gains or losses, and fully diluted shares outstanding, (ii) our outlook for the fourth quarter of fiscal year 2025 and the near-term, medium-term and long-term prospects of MPS, including our ability to adapt to changing market conditions, performance against our business plan, our ability to grow despite the various challenges facing our business, our industry and the global economic environment, revenue growth in certain of our end markets, potential new business segments, our continued investment in research and development (“R&D”), expected revenue growth, customers’ acceptance of our new product offerings, the prospects of our new product development, our expectations regarding market and industry trends and prospects, and our projected expansion of capacity and the impact it may have on our business, (iii) our ability to penetrate new markets and expand our market share, (iv) our ability to reduce our expenses, and (v) statements regarding the assumptions underlying or relating to any statement described in (i), (ii), (iii), or (iv).

These forward-looking statements are not historical facts or guarantees of future performance or events, are based on current expectations, estimates, beliefs, assumptions, goals, and objectives, and involve significant known and unknown risks, uncertainties and other factors that may cause actual results to be materially different from the results expressed by these statements. Readers of this press release and listeners to the accompanying earnings webinar are cautioned not to place undue reliance on any forward-looking statements, which speak only as of the date hereof. Factors that could cause actual results to differ include, but are not limited to, continued uncertainties in the global economy, including due to the Russia-Ukraine and Middle East conflicts, global tariffs, export controls and retaliatory measures and announcements regarding same, inflation, consumer sentiment and other factors; adverse events arising from orders or regulations of governmental entities, including such orders or regulations that impact our customers or suppliers, and adoption of new or amended accounting standards; adverse changes in laws and government regulations such as tariffs on imports of foreign goods, export regulations and export classifications, and tax laws (including the H.R.1 Act signed into law on July 4, 2025) or the interpretation of same, including in foreign countries where MPS has offices or operations; the effect of export controls, trade and economic sanctions regulations and other regulatory or contractual limitations on our ability to sell or develop our products in certain foreign markets, particularly in China; our ability to obtain governmental licenses and approvals for international trading activities or technology transfers, including export licenses; acceptance of, or demand for, our products, in particular the new products launched recently, being different than expected; our ability to increase market share in our targeted markets; difficulty in predicting or budgeting for future customer demand and channel inventories, expenses and financial contingencies (including as a result of any continuing impact from the Russia-Ukraine and Middle East conflicts); our ability to efficiently and effectively develop new products and receive a return on our R&D expense investment; our ability to attract new customers and retain existing customers; our ability to meet customer demand for our products due to constraints on our third-party suppliers’ ability to manufacture sufficient quantities of our products or otherwise; our ability to expand manufacturing capacity to support future growth; adverse changes in production and testing efficiency of our products; any political, cultural, military, regulatory, economic, foreign exchange and operational changes in China, where a significant portion of our manufacturing capacity comes from; any market disruptions or interruptions in our schedule of new product development releases; our ability to manage our inventory levels; adequate supply of our products from our third-party manufacturing partners; adverse changes or developments in the semiconductor industry generally, which is cyclical in nature, and our ability to adjust our operations to address such changes or developments; the ongoing consolidation of companies in the semiconductor industry; competition generally and the increasingly competitive nature of our industry; our ability to realize the anticipated benefits of companies and products that MPS acquires, and our ability to effectively and efficiently integrate these acquired companies and products into our operations; the risks, uncertainties and costs of litigation in which MPS is involved; the outcome of any upcoming trials, hearings, motions and appeals; the adverse impact on our financial performance if our tax and litigation provisions are inadequate; our ability to effectively manage our growth and attract and retain qualified personnel; the effect of epidemics and pandemics on the global economy and on our business; the risks associated with the financial market, economy, global tariffs, export controls and retaliatory measures and announcements regarding same, and geopolitical uncertainties, including the Russia-Ukraine and Middle East conflicts; and other important risk factors identified under the caption “Risk Factors” and elsewhere in our Securities and Exchange Commission (“SEC”) filings, including, but not limited to, our Annual Report on Form 10-K filed with the SEC on March 3, 2025. MPS assumes no obligation to update the information in this press release or in the accompanying earnings webinar.

About Monolithic Power Systems

Monolithic Power Systems, Inc. (“MPS”) is a fabless global company that provides high-performance, semiconductor-based power electronics solutions. MPS’s mission is to reduce energy and material consumption to improve all aspects of quality of life. Founded in 1997 by our CEO Michael Hsing, MPS has three core strengths: deep system-level knowledge, strong semiconductor expertise, and innovative proprietary technologies in the areas of semiconductor processes, system integration, and packaging. These combined advantages enable MPS to deliver reliable, compact, and monolithic solutions that are highly energy-efficient, cost-effective, and environmentally responsible while providing a consistent return on investment to our stockholders. MPS can be contacted through its website at www.monolithicpower.com or its support offices around the world.

Monolithic Power Systems, MPS, and the MPS logo are registered trademarks of Monolithic Power Systems, Inc. in the U.S. and trademarked in certain other countries.

Contact:

Bernie Blegen

Executive Vice President and Chief Financial Officer

Monolithic Power Systems, Inc.

MPSInvestor.Relations@monolithicpower.com

Monolithic Power Systems, Inc.

Condensed Consolidated Balance Sheets

(Unaudited, in thousands, except par value)

ASSETS

Current assets:

Cash and cash equivalents

$

$

Short-term investments

Accounts receivable, net

Inventories

Other current assets

Total current assets

Property and equipment, net

Acquisition-related intangible assets, net

Goodwill

Deferred tax assets, net

Other long-term assets

Total assets

$

$

LIABILITIES AND STOCKHOLDERS’ EQUITY

Current liabilities:

Accounts payable

$

$

Accrued compensation and related benefits

Other accrued liabilities

Total current liabilities

Income tax liabilities

Other long-term liabilities

Total liabilities

Commitments and contingencies

Stockholders’ equity:

Common stock and additional paid-in capital: $0.001 par value; shares authorized: 150,000; shares issued and outstanding: 47,905 and 47,823, respectively

Retained earnings

Accumulated other comprehensive loss

)

)

Total stockholders’ equity

Total liabilities and stockholders’ equity

$

$

Monolithic Power Systems, Inc.

Condensed Consolidated Statements of Operations

(Unaudited, in thousands, except per share amounts)

Three Months Ended September 30,

Nine Months Ended September 30,

Revenue

$

$

$

$

Cost of revenue

Gross profit

Operating expenses:

Research and development

Selling, general and administrative

Total operating expenses

Operating income

Other income, net

Income before income taxes

Income tax expense

Net income

$

$

$

$

Net income per share:

Basic

$

$

$

$

Diluted

$

$

$

$

Weighted-average shares outstanding:

Basic

Diluted

RECONCILIATION OF NET INCOME TO NON-GAAP NET INCOME

(Unaudited, in thousands, except per share amounts)

Three Months Ended September 30,

Nine Months Ended September 30,

Net income

$

$

$

$

Adjustments to reconcile net income to non-GAAP net income:

Stock-based compensation and related expenses

Amortization of acquisition-related intangible assets

Deferred compensation plan expense, net

Tax effect

)

)

Non-GAAP net income

$

$

$

$

Non-GAAP net income per share:

Basic

$

$

$

$

Diluted

$

$

$

$

Shares used in the calculation of non-GAAP net income per share:

Basic

Diluted

RECONCILIATION OF GROSS MARGIN TO NON-GAAP GROSS MARGIN

(Unaudited, in thousands)

Three Months Ended September 30,

Nine Months Ended September 30,

Gross profit

$

$

$

$

Gross margin

%

%

%

%

Adjustments to reconcile gross profit to non-GAAP gross profit:

Stock-based compensation and related expenses

Amortization of acquisition-related intangible assets

Deferred compensation plan expense

Non-GAAP gross profit

$

$

$

$

Non-GAAP gross margin

%

%

%

%

RECONCILIATION OF OPERATING EXPENSES TO NON-GAAP OPERATING EXPENSES

(Unaudited, in thousands)

Three Months Ended September 30,

Nine Months Ended September 30,

Total operating expenses

$

$

$

$

Adjustments to reconcile total operating expenses to non-GAAP total operating expenses:

Stock-based compensation and related expenses

)

)

)

)

Amortization of acquisition-related intangible assets

)

)

)

)

Deferred compensation plan expense

)

)

)

)

Non-GAAP operating expenses

$

$

$

$

RECONCILIATION OF OPERATING INCOME TO NON-GAAP OPERATING INCOME

(Unaudited, in thousands)

Three Months Ended September 30,

Nine Months Ended September 30,

Total operating income

$

$

$

$

Adjustments to reconcile total operating income to non-GAAP total operating income:

Stock-based compensation and related expenses

Amortization of acquisition-related intangible assets

Deferred compensation plan expense

Non-GAAP operating income

$

$

$

$

RECONCILIATION OF OTHER INCOME, NET, TO NON-GAAP OTHER INCOME, NET

(Unaudited, in thousands)

Three Months Ended September 30,

Nine Months Ended September 30,

Total other income, net

$

$

$

$

Adjustments to reconcile other income, net to non-GAAP other income, net:

Deferred compensation plan income

)

)

)

)

Non-GAAP other income, net

$

$

$

$

RECONCILIATION OF INCOME BEFORE INCOME TAXES TO NON-GAAP INCOME BEFORE INCOME TAXES

(Unaudited, in thousands)

Three Months Ended September 30,

Nine Months Ended September 30,

Total income before income taxes

$

$

$

$

Adjustments to reconcile income before income taxes to non-GAAP income before income taxes:

Stock-based compensation and related expenses

Amortization of acquisition-related intangible assets

Deferred compensation plan expense, net

Non-GAAP income before income taxes

$

$

$

$

2025 FOURTH QUARTER OUTLOOK

RECONCILIATION OF GROSS MARGIN TO NON-GAAP GROSS MARGIN

(Unaudited)

Three Months Ending

Low

High

Gross margin

%

%

Adjustment to reconcile gross margin to non-GAAP gross margin:

Stock-based compensation and other expenses

%

%

Non-GAAP gross margin

%

%

RECONCILIATION OF OPERATING EXPENSES TO NON-GAAP OPERATING EXPENSES

(Unaudited, in thousands)

Three Months Ending

Low

High

Operating expenses

$

$

Adjustments to reconcile operating expenses to non-GAAP operating expenses:

Stock-based compensation and other expenses

)

)

Non-GAAP operating expenses

$

$