Summary of Operations and Significant Accounting Policies	6 Months Ended
Jun. 30, 2026
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Summary of Operations and Significant Accounting Policies	NOTE 1 – Summary of Operations and Significant Accounting Policies Background Diodes Incorporated (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. Basis of Presentation The unaudited condensed consolidated financial data at December 31, 2025 are derived from audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on February 10, 2026 (“Form 10-K”). The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. Accordingly, the unaudited condensed consolidated financial statements do not include all information and footnotes necessary for a fair statement of financial position, operating results, and cash flows in conformity with GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Form 10-K. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair statement of the operating results for the periods presented have been included in the interim periods. Operating results for the three and six months ended June 30, 2026 are not necessarily indicative of the results that may be expected for other interim periods or the year ending December 31, 2026. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. As permitted under GAAP, interim accounting for certain expenses, including income taxes, are based on full year forecasts. For interim financial reporting purposes, income taxes are recorded based upon estimated annual effective income tax rates taking into consideration discrete items occurring in a quarter. Dollar amounts and share amounts are presented in thousands, except per share amounts, unless otherwise noted. Certain prior period balances were reclassified to conform to the current condensed consolidated financial statement presentation. Recently Issued Accounting Pronouncements The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact to the Company’s consolidated financial statements: In May 2026, the FASB issued ASU 2026-02, Environmental Credits and Environmental Credit Obligations (Topic 818), which establishes new guidance for the recognition, measurement, presentation, and disclosure of environmental credits and environmental credit obligations. The guidance applies to environmental credits that are acquired, generated, granted, or received by an entity and to obligations that may be settled using such credits. The standard is effective for public business entities for fiscal years beginning after December 15, 2027, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effect that adoption of ASU 2026-02 will have on its consolidated financial statements and related disclosures. In December 2025, the FASB issued ASU 2025-09 to amend certain aspects of its hedge accounting guidance to better reflect an entity’s risk management activities in the financial statements. The guidance expands the hedged risks permitted to be aggregated in a group of individual forecasted transactions and increases the variable price components eligible to be designated as the hedged risk in the forecasted purchase or sale of non-financial assets. For public business entities, the provisions of ASU 2025-09 are effective for fiscal years beginning after December 15, 2026. Early adoption is permitted. The Company has adopted the provisions set forth in ASU 2025-09 in the three months ended June 30, 2026, which did not have a material impact on the Company’s consolidated financial statements. In July 2025, the FASB issued ASU 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets” (“ASU 2025-05”). ASU 2025-05 provides a practical expedient that all entities can use when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under ASC 606, Revenue from Contracts with Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain unchanged for the remaining life of those assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods in those years. Entities that elect the practical expedient and, if applicable, make the accounting policy election are required to apply the amendments prospectively. In the first quarter of 2026, the Company adopted this standard which did not have a material impact on the Company’s consolidated financial statements. In May 2025, the FASB issued ASU 2025-03, “Business Combination and Consolidation: Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity” (“ASU 2025-03”). ASU 2025-03 provides clarifying guidance on determining the accounting acquirer in certain transactions involving VIEs. The update aims to improve consistency and comparability in financial reporting, especially when companies merge with a special-purpose acquisition company (“SPAC”). ASU 2025-03 requires entities to apply the same factors used for determining the accounting acquirer in other acquisition transactions. Essentially, it aims to make financial reporting more comparable and decision-useful for investors by ensuring that the accounting acquirer is appropriately identified in acquisitions of VIEs, particularly in SPAC transactions. ASU 2025-03 is effective for fiscal years beginning after December 15, 2026 including interim periods within those annual periods, with early adoption permitted. The Company is currently evaluating the impact this amended guidance may have on its consolidated financial statements. In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The amendments in this update require that at each interim and annual reporting period an entity disclose: • The amounts of purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. A relevant expense caption is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed above; • Companies are also required to include certain amounts that are already required to be disclosed under current generally accepted accounting principles in the same disclosure as the other disaggregation requirements; • Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and • Disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses. The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact this amended guidance may have on its consolidated financial statements.

Diodes Incorporated (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.

Basis of Presentation

The unaudited condensed consolidated financial data at December 31, 2025 are derived from audited financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2025 filed with the Securities and Exchange Commission (“SEC”) on February 10, 2026 (“Form 10-K”). The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with United States Generally Accepted Accounting Principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q. Accordingly, the unaudited condensed consolidated financial statements do not include all information and footnotes necessary for a fair statement of financial position, operating results, and cash flows in conformity with GAAP for complete financial statements. These condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and related notes contained in our Form 10-K. All significant intercompany balances and transactions have been eliminated in consolidation. In the opinion of management, all adjustments (consisting of normal recurring adjustments and accruals) considered necessary for a fair statement of the operating results for the periods presented have been included in the interim periods. Operating results for the three and six months ended June 30, 2026 are not necessarily indicative of the results that may be expected for other interim periods or the year ending December 31, 2026.

The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from these estimates. As permitted under GAAP, interim accounting for certain expenses, including income taxes, are based on full year forecasts. For interim financial reporting purposes, income taxes are recorded based upon estimated annual effective income tax rates taking into consideration discrete items occurring in a quarter.

Dollar amounts and share amounts are presented in thousands, except per share amounts, unless otherwise noted. Certain prior period balances were reclassified to conform to the current condensed consolidated financial statement presentation.

Recently Issued Accounting Pronouncements

The Financial Accounting Standards Board (“FASB”) issued the following Accounting Standards Updates (“ASU”) which could have potential impact to the Company’s consolidated financial statements:

In May 2026, the FASB issued ASU 2026-02, Environmental Credits and Environmental Credit Obligations (Topic 818), which establishes new guidance for the recognition, measurement, presentation, and disclosure of environmental credits and environmental credit obligations. The guidance applies to environmental credits that are acquired, generated, granted, or received by an entity and to obligations that may be settled using such credits.

The standard is effective for public business entities for fiscal years beginning after December 15, 2027, including interim periods within those fiscal years. Early adoption is permitted. The Company is currently evaluating the effect that adoption of ASU 2026-02 will have on its consolidated financial statements and related disclosures.

In December 2025, the FASB issued ASU 2025-09 to amend certain aspects of its hedge accounting guidance to better reflect an entity’s risk management activities in the financial statements. The guidance expands the hedged risks permitted to be aggregated in a group of individual forecasted transactions and increases the variable price components eligible to be designated as the hedged risk in the forecasted purchase or sale of non-financial assets. For public business entities, the provisions of ASU 2025-09 are effective for fiscal years beginning after December 15, 2026. Early adoption is permitted. The Company has adopted the provisions set forth in ASU 2025-09 in the three months ended June 30, 2026, which did not have a material impact on the Company’s consolidated financial statements.

In July 2025, the FASB issued ASU 2025-05, “Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses for Accounts Receivable and Contract Assets” (“ASU 2025-05”). ASU 2025-05 provides a practical expedient that all entities can use when estimating expected credit losses for current accounts receivable and current contract assets arising from transactions accounted for under ASC 606, Revenue from Contracts with Customers. Under this practical expedient, an entity is allowed to assume that the current conditions it has applied in determining credit loss allowances for current accounts receivable and current contract assets remain

unchanged for the remaining life of those assets. ASU 2025-05 is effective for fiscal years beginning after December 15, 2025, and interim reporting periods in those years. Entities that elect the practical expedient and, if applicable, make the accounting policy election are required to apply the amendments prospectively. In the first quarter of 2026, the Company adopted this standard which did not have a material impact on the Company’s consolidated financial statements.

In May 2025, the FASB issued ASU 2025-03, “Business Combination and Consolidation: Determining the Accounting Acquirer in the Acquisition of a Variable Interest Entity” (“ASU 2025-03”). ASU 2025-03 provides clarifying guidance on determining the accounting acquirer in certain transactions involving VIEs. The update aims to improve consistency and comparability in financial reporting, especially when companies merge with a special-purpose acquisition company (“SPAC”). ASU 2025-03 requires entities to apply the same factors used for determining the accounting acquirer in other acquisition transactions. Essentially, it aims to make financial reporting more comparable and decision-useful for investors by ensuring that the accounting acquirer is appropriately identified in acquisitions of VIEs, particularly in SPAC transactions. ASU 2025-03 is effective for fiscal years beginning after December 15, 2026 including interim periods within those annual periods, with early adoption permitted. The Company is currently evaluating the impact this amended guidance may have on its consolidated financial statements.

In November 2024, the FASB issued ASU 2024-03, Income Statement—Reporting Comprehensive Income—Expense Disaggregation Disclosures (Subtopic 220-40). The amendments in this update require that at each interim and annual reporting period an entity disclose:

•

The amounts of purchases of inventory, employee compensation, depreciation, intangible asset amortization, and depreciation, depletion, and amortization recognized as part of oil and gas-producing activities (or other amounts of depletion expense) included in each relevant expense caption. A relevant expense caption is an expense caption presented on the face of the income statement within continuing operations that contains any of the expense categories listed above;

•

Companies are also required to include certain amounts that are already required to be disclosed under current generally accepted accounting principles in the same disclosure as the other disaggregation requirements;

•

Disclose a qualitative description of the amounts remaining in relevant expense captions that are not separately disaggregated quantitatively; and

•

Disclose the total amount of selling expenses and, in annual reporting periods, an entity’s definition of selling expenses.

The amendments in this update are effective for annual reporting periods beginning after December 15, 2026, and interim reporting periods beginning after December 15, 2027. Early adoption is permitted. The Company is currently evaluating the impact this amended guidance may have on its consolidated financial statements.