[News Space=Reporter seungwon lee] The valuation of the top 20 minor stock rich people, including the owners of domestic listed companies, surged by more than 300% in 2025, exceeding 109.3 billion won.

According to a comprehensive survey of 60 minor shareholders from the families of owners of 2,300 listed companies conducted by Leaders Index and Sisa Journal, the total stock held by minors reached KRW 113.5 billion (as of December 15, 2025). While the KOSPI rose 75.42% over the same period, the value of these minors' shares rose 300.73%, significantly exceeding the market average.

Top 20 Rankings and Ratings

Among the top 20, Jeong Da-na (18), the third-generation heir to the Hyundai Department Store Group, ranked first with a Hyundai Green Food stock valuation of KRW 15.8 billion. She received 999,752 shares as a gift from Chairman Jeong Ji-seon in July 2024, and despite some selling in November, the value of her shares increased due to a 15.82% rise in stock price. Cho In-seo (19), the second daughter of Hyosung Group Chairman Cho In-seo, ranked second with KRW 12.6 billion, a 248% increase from KRW 3.6 billion at the beginning of the year, driven by rising stock prices of affiliates such as Hyosung and Hyosung TNC.

The eldest son of the third-ranked Vice Chairman of Daishin Securities, Yang Seung-joo (14), held 10.7 billion won, a 336.6% increase from the beginning of the year, and increased his stake to 394,240 shares through on-market purchases in May and July 2025.

KCC Glass Chairman Jeong Han-seon (18), the second son, ranked fourth with 9.9 billion won, a 15.9% increase, while his younger sister Jeong Yeon-seon (14) soared 668.6% to 4.5 billion won. Four individuals within the Hyundai Department Store Group (including Jeong Chang-wook, Jeong Chang-jun, and Jeong Chang-yoon) ranked in the top 20, with a combined 39.1 billion won.

Strengthening the control of minors by group

Hyosung Group accelerated the decentralization of its holdings, with Chairman Cho Hyun-joon's children and Vice Chairman Cho Hyun-sang's three siblings (Cho In-hee, Su-in, and Jae-ha) sweeping the top rankings. Daishin Financial Group's ownership family holds a relatively low 16% stake, but Yang Seung-joo, along with sisters Yang Chae-yu and Yang Chae-rin (each worth 1.3 billion won), ranked 16th and 17th, respectively. Hong Seung-woo (6) also held 800 million won.

KCC Group has begun to implement third-generation succession by meeting the Fair Trade Act's requirement for separation of affiliates (less than 3%) through cross-gifts between brothers, and cross-gifts between Chairman Chung Mong-jin and Chairman Chung Mong-ik have continued.

Third- and fourth-generation members of traditional conglomerates like GS and LS also ranked high in the top tier, and the decentralization of Chairman Chung Ji-sun's stake following the establishment of the Hyundai Department Store Group's holding company structure was notable. Leaders Index analyzed, "As the pace of succession in the business world accelerates, the average age of minors has dropped from 13.9 to 12.6 in 2022."

The youngest richest person and market linkage

The youngest stock rich people in 2025 were KG Group twins Kwak Tae-i and Kwak Ji-i (each 1 year old), who purchased 16,000 shares of KG Chemical stock on the market in July 2024, just 23 days after birth, and each acquired a valuation of 924.8 million won.

The era of the KOSPI 4000 index directly led to the wealth accumulation of the owner's family, and with the stock value of minors quadrupling the market's gains (75.5% to 75.6%), the inheritance of wealth began at a young age. However, some minors in the KG Group (e.g., Kwak Tae-min) and the Sae-A and Samyang Groups recorded declines of 18% to 24%.