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Finance

Toss paper accepted to NeurIPS 2025 on federated learning optimisation

Toss said its federated learning paper was accepted to NeurIPS 2025, highlighting joint work with Seoul National University. The research proposes a method that addresses performance drops caused by differing or unseen data types across countries or user groups. It combines Infomap-based clustering with local prior alignment to improve learning stability and supports discovery of new categories in environments where data distribution is unknown. Toss said the acceptance marks its first formal recognition at a global AI conference.

Finance

Hana Financial supports ESG startups with 22 billion won

Hana Financial Group held a demo day for the 2025 Hana ESG Double Impact Matching Fund at Dongdaemun Design Plaza in Seoul. The fund, financed entirely by donations, supports ESG startups with capital for growth and follow-on funding. Since 2022, it has invested in 52 companies with 9.05 billion won and helped attract 61.4 billion won in follow-on funding. This year, 232 companies applied, and 15 were selected to receive 22 billion won.

Finance

Margin calls surge in November as retail investors hit by leveraged bets

Margin calls in South Korea jumped to a record level in November as retail investors who had borrowed to buy shares were hit by a rapid market drop. Daily forced sales exceeded 37 billion won on several days, while credit loan balances and stock margin financing reached new highs. Analysts warned that December could remain volatile due to concerns over AI-related valuations and uncertainty about the US Federal Reserve’s rate path.