Annual Report for Fiscal Year Ending December 31, 2025 (Form 10-K)

Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations.

The following section discusses management's view of the financial condition, results of operations and cash flows of Diodes Incorporated and its subsidiaries (collectively, "the Company," "our Company," "we," "our," "ours," or "us") and should be read together with the consolidated financial statements and the notes to consolidated financial statements included elsewhere in this Annual Report on Form 10-K.

The following discussion contains forward-looking statements and information relating to our Company. We generally identify forward-looking statements by the use of terminology such as "may," "will," "could," "should," "potential," "continue," "expect," "intend," "plan," "estimate," "anticipate," "believe," "project," or similar phrases or the negatives of such terms. We base these statements on our beliefs as well as assumptions we made using information currently available to us. Such statements are subject to risks, uncertainties and assumptions, including those identified in Part I, Item 1A."Risk Factors," as well as other matters not yet known to us or not currently considered material by us. Should one or more of these risks or uncertainties materialize, or should underlying assumptions prove incorrect, actual results may vary materially from those anticipated, estimated or projected. Given these risks and uncertainties, prospective investors are cautioned not to place undue reliance on such forward-looking statements. Forward-looking statements do not guarantee future performance and should not be considered as statements of fact.

You should not unduly rely on these forward-looking statements, which speak only as of the date of this Annual Report on Form 10-K. Unless required by law, we undertake no obligation to publicly update or revise any forward-looking statements to reflect new information or future events or otherwise. The Private Securities Litigation Reform Act of 1995 (the "Act") provides certain "safe harbor" provisions for forward-looking statements. All forward-looking statements made in this Annual Report on Form 10-K are made pursuant to the Act.

A discussion of our results of operations for the year ended December 31, 2025 compared to December 31, 2024 is included below. For a discussion and comparison of the results of our operations for the year ended December 31, 2024 with the year ended December 31, 2023, refer to "Management's Discussion and Analysis of Financial Conditions and Results of Operations" in our Form 10-K for the year ended December 31, 2024 filed with the SEC on February 14, 2025.

General

Diodes Incorporated, together with its subsidiaries (collectively the "Company," "we," or "our" (Nasdaq: DIOD)), delivers high-quality semiconductor products to the world's leading companies in the automotive, industrial, computing, consumer electronics, and communications markets. We leverage our expanded product portfolio of analog and power solutions combined with a flexible hybrid manufacturing model that meet customers' needs. Our broad range of application-specific products, delivered through a total solutions sales approach and supported by global operations including engineering, testing, manufacturing, and customer service, enable us to be a premier provider for high-growth markets. For more information, visit www.diodes.com.

We operate from the following locations, with additional support offices throughout the world:

Plano, Texas, United States

Shanghai, Yangzhou, Shenzhen, and Hong Kong, China

Oldham, England

Greenock, Scotland

Bratislava, Slovakia

New Taipei City, Hsinchu, and Tainan, Taiwan

Milpitas, California, and Plano, Texas, United States

Shanghai and Wuxi, China

Oldham, England

Greenock, Scotland

Hsinchu, Taiwan

South Portland, Maine, United States

Shanghai, Chengdu, and Wuxi, China

Neuhaus am Rennweg, Germany

Chongli, Taiwan

Hong Kong, Shanghai, Beijing, Shenzhen, Wuhan, Qingdao, and Xiamen, China

Oldham, England

Frankfurt and Munich, Germany

Milan, Italy

Tokyo, Japan

Singapore

Seongnam-si, South Korea

New Taipei City, Taiwan

Milpitas, California and Plano, Texas, United States

The Company's manufacturing facilities have achieved certifications in the internationally recognized standards of ISO 9001:2015, ISO 14001:2015, and, for automotive products, IATF 16949:2016 and the Company is also C-TPAT certified. We believe these quality awards reflect the superior quality-control techniques established at the Company and further enhance our credibility as a vendor-of-choice to original equipment manufacturers ("OEMs") increasingly concerned with quality and consistency.

Our market focus is on high-growth, end-user applications in the following areas:

This discussion summarizes the significant factors affecting the consolidated operating results, financial condition, and liquidity of the Company for the twelve months ended December 31, 2025. This discussion should be read in conjunction with Item 8, the consolidated financial statements and the notes to consolidated financial statements.

Summary for the Twelve Months Ended December 31, 2025

Summary for the Twelve Months Ended December 31, 2024

Business Outlook and Factors Relevant to Our Results of Operations

The Company ended 2025 with net sales growing 13% for the full year, which is the highest level of annual growth since 2021. Additionally, the fourth quarter of 2025 represented the fourth consecutive quarter of double-digit growth year-over-year, further highlighting the success of the Company's design win initiatives and content expansion over the past year. The Company has continued to see demand improvements across all target markets and geographies, with the most significant growth for the full year driven by strength in the computing market for AI server-related applications as well as increases in our automotive and industrial end markets.

More recently, we have been strategically supporting key customers on new opportunities and orders specifically in the automotive and communications markets, while also further extending our design-in momentum across all end markets.

The success of our business depends on, among other factors, the strength of the global economy and the stability of the financial markets, our customers' demand for our products, the ability of our customers to meet their payment obligations, customers not canceling or deferring existing orders, and the strength of consumers' demand for items containing our products in the end-markets we serve. We believe the long-term outlook for our business remains generally favorable despite the uncertainties in the global economy as we continue to execute on the strategy that has proven successful for us over the years. See "Risk Factors - The success of our business depends on the strength of the global economy and the stability of the financial markets, and any weaknesses in these areas may have a material adverse effect on our net sales, operating results, and financial condition." in Part I, Item 1A of this Annual Report for additional information.

Description of Sales and Expenses

Net sales

The principal factors that have affected or could affect our net sales from period to period are:

Cost of goods sold

Cost of goods sold includes manufacturing costs for our semiconductors and our wafers. These costs include raw materials used in our manufacturing processes as well as labor costs and overhead expenses. Cost of goods sold is also impacted by yield improvements, capacity utilization, and manufacturing efficiencies. In addition, cost of goods sold includes the cost of products that we purchase from other manufacturers and sell to our customers. Cost of goods sold is also affected by inventory obsolescence if our inventory management is not efficient.

Selling, general, and administrative

Selling, general, and administrative expenses relate primarily to compensation and associated expenses for personnel in general management, sales and marketing, information technology, engineering, human resources, procurement, planning and finance, and sales commissions, as well as outside legal, investor relations, accounting, consulting and other operating expenses. Also included in selling, general, and administrative expenses are acquisition costs from business combinations.

Research and development

Research and development expenses consist of compensation and associated costs of employees engaged in research and development projects, as well as materials and equipment used for new product development and technology qualification. Research and development expenses are executed on a global basis and are primarily associated with where the engineering talent is located, as well as the location of manufacturing sites participating in any required technology or process development. All research and development expenses are expensed as incurred.

Amortization of acquisition-related intangible assets

Amortization of acquisition-related intangible assets consists of assets such as developed technologies and customer relationships.

Interest income / expense

Interest income consists of interest earned on our cash and investment balances. Interest expense consists of interest payable on our outstanding credit facilities and other debt instruments.

Foreign currency (loss) gain, net

This income account is used to show the amount gained or lost as a result of foreign currency transactions.

Unrealized (loss) gain on investments

We hold investments in the form of common stock or some other similar equivalent accounted for under fair-value accounting. This account is used to show the necessary mark-to-market adjustments.

Income tax provision

Our global presence requires us to pay income taxes in a number of jurisdictions. See Note 12 of "Notes to Consolidated Financial Statements" for additional information.

Net income attributable to noncontrolling interest

This represents the minority investors' share of our subsidiaries' earnings.

Net income attributable to common stockholders

Net income attributable to common stockholders is net income less net income attributable to noncontrolling interest.

Results of Operations

The following table sets forth, for the periods indicated, the percentage that certain items in the statements of income bear to net sales:

The following discussion explains in greater detail our consolidated operating results and financial condition. This discussion should be read in conjunction with the consolidated financial statements and notes thereto appearing elsewhere in this Annual Report (in thousands).

Net Sales

Our net sales increased approximately $171.0 million, or 13.0%, for the twelve months ended December 31, 2025, compared to the prior year, as we experienced stronger sales across all end markets. For the twelve months ended December 31, 2025, weighted-average sales price of the Company's products decreased 1.7% and volumes increased 15.0% when compared to the prior year. The decline in weighted-average sales price was primarily due to product mix.

The table below sets forth our revenue as a percentage of product revenue by end-user market:

Gross profit

For the twelve months ended December 31, 2025, gross profit increased approximately 6.1% when compared to the prior year, reflective of the increased revenue in 2025. Gross profit margin for the twelve month periods ended December 31, 2025 and 2024, was 31.2% and 33.2%, respectively. The decrease in gross profit margin was primarily due to product mix and slower growth in the industrial end market. Average unit cost increased 1.3% for the twelve months ended December 31, 2025, compared to the same period last year, due to the mix of the product being on lower margin/lower cost products, as well as raw material price increases, including gold.

Operating expenses

Operating expenses for the twelve months ended December 31, 2025 increased approximately $41.6 million, or 10.8%, compared to the same period last year. Selling, general, and administrative expenses ("SG&A") increased approximately $7.7 million or 3.3%, compared to the same period last year. The increase in SG&A was due to an increase in salaries and wages and freight and duty expense of approximately $18.3 million and $2.3 million respectively. The increase in salaries and wages in 2025 when compared to 2024 is partially related to a reversal of bonus accruals in 2024 for bonuses that were not paid. The increase was partially offset by lower selling expenses of approximately $6.0 million, lower bad debt expense of approximately $5.9 million, and lower professional services expenses of approximately $1.5 million, including audit, consulting, and legal expenses.

Research and development expenses ("R&D") increased $28.1 million when compared to the same period last year. R&D, as a percentage of net sales, was 10.9% and 10.2% for the twelve-month periods ended December 31, 2025 and 2024, respectively. The increases in R&D expense are related to increases in wages and benefits of approximately $9.3 million, marketing expense of approximately $6.2 million, depreciation and amortization of approximately $5.3 million, and supplies expense of approximately $2.3 million. R&D is a priority of the company and new products and new technologies are a life blood, reflected in the increased spending, but staying relatively consistent as a percentage of net sales. Amortization of acquisition-related intangibles increased approximately 34.7% reflecting a full year of the increased amortization expense due to the acquisition of Fortemedia in October 2024.

Other (expense)/income

Interest income increased $10.0 million or 54.6% when compared to 2024 due to increased interest income received on derivative financial instruments. Interest expense was relatively flat from 2024 to 2025. The change in unrealized gain on investments in 2025 compared to 2024 was due to mark-to-market adjustments to adjust the value of the investments, including a $33.3 million increase in the value of the Company's investment in Atlas. The Company recognized a gain of approximately $13.7 million related to the disposal of a subsidiary. During the the twelve months ended December 31, 2025, the Company recognized an impairment loss on an equity investment of $5.8 million, due to a decline in the value of the investment.

Income tax provision

We recognized income tax expense of approximately $14.8 million for the twelve months ended December 31, 2025, and income tax expense of approximately $11.8 million for the twelve months ended December 31, 2024, resulting in effective income tax rates of 17.6% and 18.9%, respectively. The decrease in the effective tax rate for 2025 compared to 2024 is primarily attributable to an increase in overall pre-tax book income and the impact of the geographical mix of pre-tax income. Our undistributed foreign earnings continue to be indefinitely reinvested in foreign operations, with limited exceptions related to earnings of European and Asian subsidiaries. Any future distributions of foreign earnings will not be subject to additional U.S. income tax but may be subject to foreign withholding taxes. The Company has recorded outside basis differences in the limited instances where they do not assert permanent reinvestment. As of December 31, 2025, our foreign subsidiaries held approximately $221.2 million of cash, cash equivalents, and investments, of which approximately $80.1 million would be subject to foreign withholding tax if distributed outside the country in which the related earnings were generated.

Financial Condition

Liquidity and Capital Resources

Our primary sources of liquidity are cash and cash equivalents, short-term investments, funds from operations, and, if necessary, borrowings under our credit facilities.

Liquidity requirements

Our primary liquidity requirements have been to meet our capital expenditure needs and to fund ongoing operations. For 2025 and 2024 our working capital was $878.6 million and $848.6 million, respectively. The Company's working capital account balances reflect fluctuations from normal business activities. We expect cash generated by our operations together with existing cash, cash equivalents, short-term investments and available credit facilities to be sufficient to satisfy our working capital needs, capital asset purchases, outstanding commitments, and other liquidity requirements associated with our existing operations for at least the next 12 months.

The Company's restricted cash primarily consisted of the cash required to be on deposit under contractual agreements with banks to support outstanding loan and import/export guarantees. As of December 31, 2025, restricted cash of $5.1 million was pledged as collateral for issuance of bank loans, bank acceptance notes, letters of credit, and funds held in escrow related to the Fortemedia acquisition.

Short-term investments

As of December 31, 2025, we had short-term investments of approximately $9.8 million. These investments are highly liquid with maturity dates greater than three months at the date of purchase. We generally can access these investments in a relatively short amount of time but in doing so we generally forfeit a portion of interest income.

Short-term debt

Our Asia subsidiaries maintain credit facilities with several financial institutions through our foreign entities worldwide totaling $150.3 million. Other than two Taiwanese credit facilities that are collateralized by assets, our foreign credit lines are unsecured, uncommitted and contain no restrictive covenants. These credit facilities bear interest at the Taipei Interbank Offered Rate (or similar indices) plus a specified margin. Interest payments are due monthly on outstanding amounts under the credit lines. The unused and available credit under the various facilities as of December 31, 2025, was approximately $119.6 million, net of $30.3 million advanced under our foreign credit lines and $0.4 million credit used for import and export guarantee.

Long-term debt

The Company maintains a long-term credit facility ("Credit Agreement"). The Credit Agreement consists of a Revolving Credit Facility in the amount of $225.0 million, including a swing line sublimit equal to the lesser of $50.0 million and the Revolving Credit Facility, a letter of credit sublimit equal to the lesser of $100.0 million and the Revolving Credit Facility, and an alternative currency sublimit equal to the lesser of $40.0 million and the Revolving Credit Facility. The Company has the option to increase the Revolving Credit Facility and/or incur Incremental Term Loans in an aggregate principal amount of up to $350.0 million. The Credit Agreement bears interest at Term Secured Overnight Financing Rate ("SOFR") or similar other indices plus a specified margin and matures in May 2028. There was no outstanding balance under the Credit Agreement at December 31, 2025.

Because some of our outstanding debt is subject to variable interest rates, the recent rise in interest rates will potentially increase our overall debt service cost. If interest rates continue to rise globally, our cost of capital may increase in the future.

Capital expenditures and investments

In 2025 and 2024, our total cash capital expenditures were approximately $78.4 million and $73.0 million, respectively. Our capital expenditures for these periods were primarily related to manufacturing expansion in both our assembly/test and wafer fabrication facilities. Cash capital expenditures in 2025 were approximately 5.3% of our net sales, inline with the Company's target model of 5% to 9% of net sales. Going forward, over the long term, the Company expects capital expenditures to continue to be within the 5% to 9% of net sales target model range.

Our foreign operations expose us to unique intellectual property technology and other risks compared to a company with fewer or no international operations. For example, we are exposed to potential cyber security breaches that may target our employees or infrastructure outside the United States. These risks may result in material and adverse impacts on our financial condition and results of operations. See "Risk Factors - Risks Related to Our International Operations" in Part I, Item 1A of this Annual Report for a more detailed summary of the intellectual property technology risks and other associated with our international business operations.

Discussion of Cash Flows

Cash and cash equivalents, including restricted cash, increased approximately $57.6 million to $372.3 million in 2025 from $314.7 million in 2024. The table below sets forth summary information from our statements of cash flows:

Operating Activities

Net cash flows from operating activities for 2025 was approximately $215.5 million, due primarily to $69.2 million of net income, $143.7 million in depreciation expense and amortization of intangible assets expense and $25.7 million from non-cash share-based compensation expense, and a net increase in cash attributable to changes in operating assets and liabilities of $36.5 million. These increases were partially offset by interest income from derivative financial instruments of $20.0 million, gain on disposal of property, plant and equipment of $0.6 million, non-cash gains on investments of $25.9 million, and a decrease in deferred income taxes of $7.5 million.

Investing Activities

Net cash flows from investing activities for 2025 was approximately $(116.2) million. The Company invested approximately $78.4 million in property, plant, and equipment, primarily at its production facilities in Asia. The Company made purchases of equity securities of $49.3 million, including making an investment in ATX of approximately $30.0 million, increasing its investment in Atlas by approximately $17.3 million, and the acquisition of the minority interest in a joint venture in Taiwan for approximately $4.1 million, bringing the Company's ownership to 100%. The Company also paid approximately $4.0 million, net, due to the expiration of a hedge instrument. These uses of cash for investing were partially offset by the receipt of approximately $16.0 million related to the sale of TF Semiconductor Solutions, Inc.

Financing Activities

Net cash flows from financing activities for 2025 was approximately $(54.8) million, due primarily to repurchases of our common stock of $33.8 million, net changes in noncontrolling interests of $18.1 million, taxes on net share settlements of $4.3 million, and the net reduction in our outstanding indebtedness of $1.2 million.

Contractual Obligations

Our estimated future obligations consist of debt, interest on long-term debt, leases, defined benefit obligation and purchase obligations. See Note 8-"Bank Credit Agreements and Other Short-term and Long-term Debt, Note 9-"Leases", Note 13- "Employee Benefit Plans", and Note 17-"Commitments and Contingencies" of the notes to consolidated financial statements" included elsewhere in this Annual Report for additional information.

We cannot make reasonable estimates of the amount and period in which our tax liabilities will be paid. See "Accounting for income taxes" below and Note 12 of "Notes to Consolidated Financial Statements" of this Annual Report for additional information.

Critical Accounting Policies and Estimates

The preparation of financial statements in conformity with generally accepted principles in the United States of America ("U.S. GAAP") requires that management make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of net sales and expenses during the reporting period. On an ongoing basis, we evaluate our estimates, which are based upon historical experiences, market trends, and financial forecasts and projections, and upon various assumptions that management believes to be reasonable under the circumstances at that certain point in time. Actual results may differ, significantly at times, from these estimates under different assumptions or conditions.

We believe the following critical accounting policies and estimates affect the significant estimates and judgments we use in the preparation of our consolidated financial statements, and may involve a higher degree of judgment and complexity than others.

Revenue recognition

In relation to our revenue recognition, we record estimated allowances/reserves for the following items;

Our reserve estimates are based upon historical data as well as projections of sales, distributor inventories, price adjustments, average selling prices, and market conditions. Actual returns and adjustments could be significantly different from our estimates and provisions, resulting in an adjustment to net sales. Based on the allowance/reserve balance as of December 31, 2025, a 1% change would increase or decrease the estimated allowance/reserve and net revenue by approximately $1.0 million.

Inventories

Inventories are stated at the lower of cost or net realizable value. Cost is determined principally by the first-in, first-out method. On an ongoing basis, we evaluate our inventory for salability, obsolescence and any other available applicable information. If our review indicates a reduction in utility below carrying value, we reduce our inventory to a new cost basis. If future demand or market conditions are different than our current estimates, an inventory adjustment may be required, and would be reflected in cost of goods sold in the period the revision is made.

Accounting for income taxes

As part of the process of preparing our consolidated financial statements, we are required to estimate our income taxes in each of the tax jurisdictions in which we operate. This process involves using an asset and liability approach whereby deferred tax assets and liabilities are recorded for differences in the financial reporting bases and tax bases of our assets and liabilities. A valuation allowance is provided against deferred tax assets unless it is more likely than not that such deferred tax assets will be realized. This analysis requires considerable judgment and is subject to change to reflect future events and changes in the tax laws.

The benefit of a tax position is recognized only if it is more likely than not that the tax position would be sustained based on its technical merits in a tax examination, using the presumption the tax authority has full knowledge of all relevant facts regarding the position. The amount of benefit recognized is the largest amount of tax benefit that is greater than 50% likely of being realized on ultimate settlement with the tax authority. For tax positions not meeting the more likely than not test, no tax benefit is recorded.

Business Combinations

Significant judgment is often required in estimating the fair value of assets acquired and liabilities assumed. The Company makes estimates and assumptions about conditions of the assets, other costs not captured in the base costs, and consideration for entrepreneurial profit, depreciation, functional obsolescence, and economic obsolescence allocated to the various property, plant, and equipment categories considering the perspective of marketplace participants.

Recently Issued Accounting Pronouncements

See Note 1 of "Notes to Consolidated Financial Statements" of this Annual Report for additional information regarding the status of recently issued accounting pronouncements.