[6-K] ASE Technology Holding Co., Ltd. Current Report (Foreign Issuer)

Rhea-AI Filing Summary

ASE Technology Holding Co., Ltd. reported unaudited consolidated net revenues showing growth in both September and the third quarter of 2025. Consolidated net revenues in September were NT$60,561M ($1,995M), up 7.3% sequentially and 9.0% year‑over‑year in NT$. For the three months ended Q3, consolidated net revenues were NT$168,569M ($5,663M), rising 11.8% sequentially and 5.3% year‑over‑year in NT$; on a US$ basis Q3 revenues increased 17.1% sequentially and 14.3% year‑over‑year. Business segments shown also posted increases: one segment recorded September net revenues of NT$34,997M ($1,153M), up 4.4% sequentially and 20.0% YoY in NT$, while another reported Q3 net revenues of NT$100,289M ($3,371M), up 8.3% sequentially and 16.9% YoY in NT$. The figures are unaudited and presented in both NT$ and US$.

Positive

• Consolidated Q3 net revenues rose to NT$168,569M ($5,663M), a 11.8% sequential increase in NT$
• Year‑over‑year growth of 14.3% in US$ for Q3, indicating stronger revenue compared with Q3 2024
• September monthly revenue increased sequentially to NT$60,561M ($1,995M), up 7.3% from August
• Segment performance: one segment delivered 20.0% YoY growth in September (to NT$34,997M) and another posted 16.9% YoY growth for Q3 (to NT$100,289M)

Negative

• Unaudited figures are provided, so final audited results could differ
• No profitability, margin, or cash‑flow details are included here, limiting assessment of earnings quality

Insights

Financial Analyst

Revenue trend is broadly positive with double‑digit sequential Q3 growth in both NT$ and US$.

The company shows clear sequential acceleration: Q3 consolidated revenues rose to NT$168,569M ($5,663M), a 11.8% sequential increase in NT$ and 17.1% in US$. This indicates stronger demand or seasonally higher shipments in the quarter.

Key dependencies include currency translation and the unaudited status of the numbers; exchange rates drove larger percentage gains in US$ versus NT$. Watch quarterly results and audited filings over the next month for margin and cash‑flow detail.

Industry/Market Analyst

Segment-level data show one unit with >20% YoY September revenue growth, suggesting product mix or end‑market strength.

One reported segment posted September net revenues of NT$34,997M ($1,153M), up 20.0% YoY in NT$, while another segment recorded Q3 revenues of NT$100,289M ($3,371M), up 16.9% YoY. These moves may reflect concentration in higher‑demand product lines or regional sales shifts.

Risks include lack of margin, backlog, or product‑level disclosure here; investors should monitor the next full earnings release for profitability, order trends, and customer concentration over the coming quarter.

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

October, 2025

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: October 9, 2025	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., october 9, 2025 – ASE Technology Holding Co., Ltd. (NYSE: ASX, TAIEX: 3711, “ASEH” or the “Company”), announces its unaudited consolidated net revenues for September and 3^rd quarter of 2025.

Consolidated net revenues (unaudited)

		Sept		Aug		Sept		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		60,561		56,466		55,579		+7.3%		+9.0%
		Sept		Aug		Sept		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		1,995		1,899		1,739		+5.1%		+14.7%
		Q3		Q2		Q3		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		168,569		150,750		160,105		+11.8%		+5.3%
		Q3		Q2		Q3		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		5,663		4,838		4,956		+17.1%		+14.3%

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

atm net revenues (unaudited)

		Sept		Aug		Sept		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		34,997		33,510		29,172		+4.4%		+20.0%
		Sept		Aug		Sept		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		1,153		1,127		913		+2.3%		+26.3%
		Q3		Q2		Q3		Sequential		YoY
(NT$ Million)		2025		2025		2024		Change		Change
Net Revenues		100,289		92,565		85,791		+8.3%		+16.9%
		Q3		Q2		Q3		Sequential		YoY
(US$ Million)		2025		2025		2024		Change		Change
Net Revenues		3,371		2,972		2,655		+13.4%		+26.9%

*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.

FAQ

What were ASE (ASX) consolidated net revenues for Q3 2025?

Consolidated Q3 2025 net revenues were NT$168,569M (approximately $5,663M), up 11.8% sequentially in NT$ and 14.3% YoY in US$.

How did ASE's September 2025 revenue compare to August 2025?

September 2025 consolidated net revenues were NT$60,561M ($1,995M), a +7.3% sequential increase from August 2025.

Which segments showed the strongest growth in the report?

A reported segment had September net revenues of NT$34,997M ($1,153M), up 20.0% YoY in NT$; another segment’s Q3 net revenues reached NT$100,289M ($3,371M), up 16.9% YoY in NT$.

Are these ASE (ASX) results audited?

No, the reported consolidated net revenues are unaudited.

Why do percentage changes differ between NT$ and US$?

Reported percentage changes differ because figures are shown in both NT$ and US$, and currency translation effects altered the reported US$ growth rates.