ASE Technology Holding posts strong 2025 revenue and ATM growth

ASE Technology Holding Co., Ltd. reports unaudited consolidated net revenues for December, the fourth quarter, and full year 2025, showing solid growth year over year.

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. reports unaudited consolidated net revenues for December, the fourth quarter, and full year 2025, showing solid growth year over year. December consolidated net revenues were NT$58,865 million, up 11.3% from December 2024 (US$1,880 million, up 15.3%). Fourth-quarter 2025 consolidated net revenues reached NT$177,915 million, a 9.6% increase from a year earlier (US$5,763 million, up 14.2%). Full-year 2025 consolidated net revenues were NT$645,388 million, up 8.4% from 2024 (US$20,782 million, up 11.8%).

The ATM assembly, testing and material business was a key growth driver. December 2025 ATM net revenues were NT$37,586 million, 25.9% higher than a year earlier (US$1,201 million, up 30.4%). Fourth-quarter 2025 ATM net revenues were NT$109,707 million, up 24.2% year over year (US$3,553 million, up 29.3%), and full-year 2025 ATM net revenues rose to NT$389,228 million, 19.4% above 2024 (US$12,539 million, up 23.2%).

Insights

Semiconductor sector equity analyst

ASEH delivers broad-based 2025 revenue growth, led by ATM segment strength.

ASE Technology Holding shows a year of healthy topline expansion. Consolidated net revenues for full-year 2025 reached NT$645,388 million, up 8.4% from 2024, or US$20,782 million, up 11.8%. Fourth-quarter 2025 revenue also grew versus both the prior quarter and prior year, indicating steady demand into year-end.

The ATM assembly, testing and material business stands out as the main engine. Full-year 2025 ATM net revenues of NT$389,228 million rose 19.4% year over year, with Q4 ATM revenue up 24.2% in NT$ terms and 29.3% in US$ terms. This suggests strong outsourcing demand for back-end semiconductor services relative to the broader business mix.

December 2025 ATM net revenues grew 25.9% year over year to NT$37,586 million, reinforcing that momentum carried into the final month. Actual implications for margins and cash flow are not detailed here, so a fuller picture will depend on upcoming financial statements, but these revenue trends indicate a positive demand backdrop through 2025.

FAQ

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What net revenues did ASE Technology Holding (ASX) report for December 2025?

For December 2025, ASE Technology Holding reported unaudited consolidated net revenues of NT$58,865 million, up 11.3% year over year, or US$1,880 million, up 15.3%.

How did ASE Technology Holding’s consolidated revenues perform in Q4 2025?

In Q4 2025, consolidated net revenues were NT$177,915 million, a 9.6% year-over-year increase, or US$5,763 million, up 14.2% from Q4 2024.

What were ASE Technology Holding’s full-year 2025 consolidated net revenues?

Full-year 2025 consolidated net revenues were NT$645,388 million, up 8.4% from 2024, equivalent to US$20,782 million, an 11.8% increase year over year.

How did the ATM assembly, testing and material business perform in 2025 for ASX?

ASE’s ATM business generated full-year 2025 net revenues of NT$389,228 million, up 19.4% year over year, or US$12,539 million, up 23.2%.

What were ASE Technology Holding’s ATM net revenues in Q4 2025?

ATM net revenues in Q4 2025 were NT$109,707 million, an increase of 24.2% from Q4 2024, or US$3,553 million, up 29.3% year over year.

How did ASE Technology Holding’s ATM revenues trend in December 2025?

December 2025 ATM net revenues were NT$37,586 million, up 25.9% year over year, or US$1,201 million, up 30.4% from December 2024.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 01/09/2026 - 07:53 AM Learn about SEC filing dates

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

January 2026 

Commission File Number 001-16125

ASE Technology Holding Co., Ltd.

(Translation of registrant’s name into English)

26, Chin 3rd Road

Kaohsiung, Taiwan

Republic of China

(Address of principal executive offices)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☒         Form 40-F ☐    

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

	ASE TECHNOLOGY HOLDING CO., LTD.
Date: January 9, 2026	By:	/s/ Joseph Tung
		Name:  Joseph Tung
		Title:    Chief Financial Officer

 

Investor Relations Contact 

ir@aseglobal.com 

Tel: +886.2.6636.5678 

https://www.aseglobal.com

ASE Technology Holding Co., Ltd.
Announces Monthly Net Revenues*

Taipei, Taiwan, R.O.C., January 9, 2026 – ASE Technology Holding Co., Ltd. (NYSE: ASX, TAIEX: 3711, “ASEH” or the “Company”), announces its unaudited consolidated net revenues for December, 4^th quarter and full year of 2025.

Consolidated net revenues (unaudited)

		Dec		Nov		Dec		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		58,865		58,820		52,905		+0.1%		+11.3%
		Dec		Nov		Dec		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		1,880		1,903		1,632		-1.2%		+15.3%
		Q4		Q3		Q4		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		177,915		168,569		162,264		+5.5%		+9.6%
		Q4		Q3		Q4		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		5,763		5,663		5,046		+1.8%		+14.2%
		Full Year		Full Year						YoY
(NT$ Million)		2025		2024						Change
Net Revenues		645,388		595,410						+8.4%
		Full Year		Full Year						YoY
(US$ Million)		2025		2024						Change
Net Revenues		20,782		18,596						+11.8%

 

Net revenues for ATM assembly, testing and material business are as follows:

atm net revenues (unaudited)

		Dec		Nov		Dec		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		37,586		36,082		29,858		+4.2%		+25.9%
		Dec		Nov		Dec		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		1,201		1,167		921		+2.9%		+30.4%
		Q4		Q3		Q4		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		109,707		100,289		88,363		+9.4%		+24.2%
		Q4		Q3		Q4		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		3,553		3,371		2,747		+5.4%		+29.3%
		Full Year		Full Year						YoY
(NT$ Million)		2025		2024						Change
Net Revenues		389,228		325,875						+19.4%
		Full Year		Full Year						YoY
(US$ Million)		2025		2024						Change
Net Revenues		12,539		10,178						+23.2%

*This press release is intended to comply with Taiwan regulatory requirements.

Safe Harbor Notice: 

This press release contains "forward-looking statements" within the meaning of Section 27A of the United States Securities Act of 1933, as amended, and Section 21E of the United States Securities Exchange Act of 1934, as amended. These statements are made under the “safe harbor” provisions of the U.S. Private Securities Litigation Reform Act of 1995. Although these forward-looking statements, which may include statements regarding our future results of operations, financial condition or business prospects, are based on our own information and information from other sources we believe to be reliable, you should not place undue reliance on these forward-looking statements, which apply only as of the date of this press release. The words “anticipate,” “believe,” “estimate,” “expect,” “intend,” “plan” and similar expressions, as they relate to us, are intended to identify these forward-looking statements in this press release. These forward-looking statements are necessarily estimates reflecting the best judgment of our senior management and our actual results of operations, financial condition or business prospects may differ materially from those expressed or implied by the forward-looking statements for reasons including, among others, risks associated with cyclicality and market conditions in the semiconductor or electronic industry; changes in our regulatory environment, including our ability to comply with new or stricter environmental regulations and to resolve environmental liabilities; demand for the outsourced semiconductor packaging, testing and electronic manufacturing services we offer and for such outsourced services generally; the highly competitive semiconductor or manufacturing industry we are involved in; our ability to introduce new technologies in order to remain competitive; international business activities; our business strategy; our future expansion plans and capital expenditures; the strained relationship between the Republic of China and the People’s Republic of China; general economic and political conditions; the recent shift in United States trade policies; possible disruptions in commercial activities caused by natural or human-induced disasters; fluctuations in foreign currency exchange rates; and other factors. For a discussion of these risks and other factors, please see the documents we file from time to time with the Securities and Exchange Commission, including the 2024 Annual Report on Form 20-F filed on March 27, 2025.