6-K 1 d182035d6k.htm FORM 6-K Form 6-K

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

For the month of October 2026

Commission File Number: 000-53445

KB Financial Group Inc.

(Translation of registrant’s name into English)

26, Gukjegeumyung-ro 8-gil, Yeongdeungpo-gu, Seoul 07331, 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 Operating Results for the Third Quarter of 2026

On October 29, 2026, KB Financial Group Inc. (“KB Financial Group”) held an earnings conference and released its preliminary operating results for the third quarter of fiscal year 2026. The following tables reflect the key figures released during the conference. The presentation materials for the conference, which contain further details, are available at KB Financial Group’s website (http://www.kbfg.com).

The preliminary figures presented herein are based on International Financial Reporting Standards as adopted by the Republic of Korea (“K-IFRS”) and are currently being reviewed by KB Financial Group’s independent auditors and are therefore subject to change.

1.

Preliminary Operating Results of KB Financial Group (Consolidated)

(Won in millions, %)

3Q 2026 2Q 2026 % Change
Increase
(Decrease)

(Q to Q)
3Q 2025 % Change
Increase

(Y to Y)

Operating revenue

Specified Quarter 24,498,249 31,757,381 (22.86 ) 14,972,327 63.62
Cumulative 86,954,553 —  —  58,916,784 47.59

Net operating profit

Specified Quarter 2,367,289 2,712,548 (12.73 ) 2,334,990 1.38
Cumulative 7,807,403 —  —  6,760,989 15.48

Profit before income tax

Specified Quarter 2,349,191 2,732,758 (14.04 ) 2,261,433 3.88
Cumulative 7,713,089 —  —  6,911,180 11.60

Profit for the period

Specified Quarter 1,913,172 2,010,508 (4.84 ) 1,655,228 15.58
Cumulative 5,840,149 —  —  5,101,930 14.47

Profit attributable to shareholders of the parent company

Specified Quarter 1,907,460 1,992,189 (4.25 ) 1,686,040 13.13
Cumulative 5,792,050 —  —  5,121,733 13.09
Notes: 1)

“Operating revenue” represents the sum of interest income, fee and commission income, insurance income, reinsurance income, gain on financial assets/liabilities at fair value through profit or loss, other insurance finance income and other operating income.


2.

Preliminary Operating Results of Kookmin Bank (Consolidated)

(Won in millions, %)

3Q 2026 2Q 2026 % Change
Increase

(Q to Q)
3Q 2025 % Change
Increase
(Decrease)

(Y to Y)

Operating revenue

Specified Quarter 13,826,377 11,750,941 17.66 6,444,666 114.54
Cumulative 41,495,236 —  —  31,425,703 32.04

Net operating profit

Specified Quarter 1,573,164 1,505,435 4.50 1,573,852 (0.04 )
Cumulative 4,703,549 —  —  4,519,186 4.08

Profit before income tax

Specified Quarter 1,549,031 1,509,062 2.65 1,578,930 (1.89 )
Cumulative 4,575,832 —  —  4,490,178 1.91

Profit for the period

Specified Quarter 1,340,604 1,124,017 19.27 1,175,328 14.06
Cumulative 3,564,846 —  —  3,345,168 6.57

Profit attributable to shareholders of the parent company

Specified Quarter 1,350,858 1,124,363 20.14 1,176,943 14.78
Cumulative 3,576,260 —  —  3,364,548 6.29
Note: 1)

“Operating revenue” represents the sum of interest income, fee and commission income, gain on financial assets/liabilities at fair value through profit or loss and other operating income.


3.

Preliminary Operating Results of KB Securities Co., Ltd. (“KB Securities”) (Consolidated)

(Won in millions, %)

3Q 2026 2Q 2026 % Change
Increase
(Decrease)

(Q to Q)
3Q 2025 % Change
Increase

(Y to Y)

Operating revenue

Specified Quarter 5,441,505 12,277,933 (55.68 ) 2,746,467 98.13
Cumulative 26,070,376 —  —  8,951,291 191.25

Net operating profit

Specified Quarter 380,995 600,609 (36.57 ) 225,264 69.13
Cumulative 1,434,718 —  —  667,919 114.80

Profit before income tax

Specified Quarter 392,601 608,584 (35.49 ) 213,389 83.98
Cumulative 1,472,590 —  —  673,908 118.51

Profit for the period

Specified Quarter 273,040 450,769 (39.43 ) 160,067 70.58
Cumulative 1,074,044 —  —  502,428 113.77

Profit attributable to shareholders of the parent company

Specified Quarter 272,582 449,886 (39.41 ) 159,172 71.25
Cumulative 1,071,564 —  —  500,768 113.98
Notes: 1)

The above figures are based on KB Securities’ consolidated financial statements, as a result of which the figures may differ from KB Securities’ earnings results to be released at KB Financial Group’s earnings conference for the third quarter of fiscal year 2026, which are based on KB Financial Group’s consolidated financial statements.

2)  “Operating revenue” represents operating income based on KB Securities’ financial statements.


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.

KB Financial Group Inc.
(Registrant)
Date: October 29, 2026 By: /s/ Sang Rok Na
(Signature)
Name: Sang Rok Na
Title: Senior Managing Director and Chief Financial Officer