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 OF

THE SECURITIES EXCHANGE ACT OF 1934

FOR THE MONTH OF JULY 2026

Commission File Number: 001-43391

SK hynix Inc.

(Translation of registrant’s name into English)

2091, Gyeongchung-daero

Bubal-eup, Icheon-si

Gyeonggi-do 17336, Korea

(Address of principal executive office)

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 ☐

Preliminary Results of Operations

•

The preliminary results of SK hynix Inc. (“SK hynix” or the “Company”) shown below may differ from the final results.

1. Basis: Consolidated

Classification

(unit : in millions of Won or %)

Current Period
(Second
quarter⁽¹⁾
of 2026)

Previous Period
(First
quarter⁽²⁾
of 2026)

Changes
(%)

Year to Year
Comparison
(Second
quarter⁽¹⁾
of 2025)

Changes
(%)

Revenue

Quarterly Results
Year-to-date (“YTD”)⁽³⁾ Results

79,318,746
131,895,033

52,576,287
N.A.

50.9
N.A.

22,231,952
39,871,093

256.8
230.8

Operating Profit (Loss)

Quarterly Results YTD⁽³⁾
Results

60,542,608
98,152,891

37,610,283
N.A

61.0
N.A

9,212,851
16,653,355

557.2
489.4

Profit (Loss) from Continuing Operations Before Income Tax

Quarterly Results YTD⁽³⁾
Results

122,708,355
174,325,213

51,616,858
N.A.

137.7
N.A.

8,722,583
18,021,812

1,306.8
867.3

Profit (Loss) for the Period

Quarterly Results YTD⁽³⁾
Results

93,922,593
134,268,502

40,345,909
N.A.

132.8
N.A.

6,996,216
15,104,411

1,242.5
788.9

Attributable To: Controlling Interests

Quarterly Results YTD⁽³⁾
Results

93,820,236
134,150,412

40,330,176
N.A.

132.6
N.A.

6,997,228
15,104,309

1,240.8
788.2

(1)	Refers to the three-month period from April 1 to June 30 of a given year.

(2)	Refers to the three-month period from January 1 to March 31 of a given year.

(3)	Refers to the six-month period from January 1 to June 30 of a given year.

*	Means “not applicable.”


2. Source of Data	Data Provider	Investor Relations, SK hynix

	Provided for	Investors and Press

	(Expected) Date / Time of Provision	July 29, 2026 / 9:00 a.m. (Seoul time)

	Location	2026 2Q Earnings Results Conference Call

	Organizing Team	Investor Relations, SK hynix (+82-31-5185-4114)

3. Other Important Matters Relating to an Investment Decision	- The preliminary results set forth in this report have been prepared on a consolidated basis in accordance with International Financial Reporting Standards as adopted in Korea (“K-IFRS”). As these results are provisional figures for which the audit by the Company’s external auditor has not yet been completed, they may be subject to change. - The materials for the Company’s conference call will be available on its Investor Relations website on July 29, 2026 (Seoul time) (https://www.skhynix.com g IR g Financial Information g Earnings Release).

SIGNATURE

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.


SK hynix Inc.
(Registrant)

By:		/s/ Seonghwan Park
(Signature)
Name:		Seonghwan Park
Title:		Head of Investor Relations

Date: July 29, 2026

SK hynix Inc. 6-K