KB Financial Group Inc. filed a Form 6-K on November 11, 2026, disclosing that the Korea Fair Trade Commission imposed an administrative fine of KRW 332,178,000,000 on its consolidated subsidiary KB Securities Co., Ltd. in connection with allegations of collusion among primary dealers in Korea Treasury Bond auctions.

Key Highlights

  • Fine amount: The Korea Fair Trade Commission imposed an administrative fine of KRW 332,178,000,000 on KB Securities Co., Ltd.
  • Fine as share of equity: According to the filing, the fine equals 3.87% of KB Securities' equity capital of KRW 8,594,434,928,099.
  • Equity capital basis: The equity capital figure represents KB Securities' consolidated equity as of December 31, 2025, plus increases in share capital and capital surplus up to the date of the report.
  • Alleged conduct: The penalty was imposed in connection with allegations of collusion among primary dealers participating in Korea Treasury Bond auctions.
  • Date basis: The filing states the imposition date reflects when KB Securities became aware of the matter through the KFTC's press release, and the fine amount is based on that press release, which "may be different from the final amount imposed by the KFTC."
  • Next steps: KB Securities disclosed it plans to "carefully review" the official written decision upon receipt and "take relevant follow-up measures accordingly."

KFTC Fine on KB Securities: Details of the Disclosure

KB Financial Group Inc. (NYSE:KB) reported that on November 11, 2026, the Korea Fair Trade Commission imposed an administrative fine of KRW 332,178,000,000 on KB Securities Co., Ltd., a consolidated subsidiary of the group. According to the filing, the penalty relates to allegations of collusion among primary dealers participating in Korea Treasury Bond auctions. The fine represents 3.87% of KB Securities' equity capital, which the filing calculates at KRW 8,594,434,928,099 on a consolidated basis.

The filing notes an important caveat regarding the figures disclosed: the date of imposition is based on when KB Securities learned of the matter through the KFTC's press release, and "the amount of the administrative fine is based on such press release which may be different from the final amount imposed by the KFTC." KB Financial Group indicated that the official written decision and related documents from the KFTC will be received at a later date.

Upon receipt of the official decision, KB Securities stated it plans to carefully review the documentation and take relevant follow-up measures. The Form 6-K was signed by Sang Rok Na, Senior Managing Director and Chief Financial Officer of KB Financial Group Inc., and filed for the month of November 2026 under Commission File Number 000-53445.

What Was Disclosed

KB Financial Group disclosed via Form 6-K that its subsidiary KB Securities received an administrative fine of KRW 332,178,000,000 from the Korea Fair Trade Commission related to alleged collusion in Korea Treasury Bond auctions, noting the final amount may differ from the press-release figure.