3 Asian billionaires among world’s 5 biggest single-day weath losers

Japan’s second-richest man Masayoshi Son led globally in wealth loss with a $4.2 billion decline. His fortune shrunk 6.9% to $56.2 billion, ranking 34th in the world, according to real-time data by Forbes.

SoftBank group Chairman and CEO Japanese Masayoshi Son arrives for a meeting with French president at The Elysee Presidential Palace in Paris on June 1, 2026. Photo by AFP

The CEO of investment giant SoftBank Group posted a wealth loss after the company’s stock dipped 5.24% on Tuesday morning, having fallen almost 15% in the last five sessions.

SoftBank, which has stakes in Apple, Qualcomm and OpenAI, has been among AI-related stocks that have weakened this month amid concerns of high debts.

Chinese battery tycoon Robin Zeng posted the second-largest wealth loss in the world, losing $2.4 billion in his fortune.

Robin Zeng, founder and CEO of Contemporary Amperex Technology. Photo courtesy of CATL

Robin Zeng, founder and CEO of Contemporary Amperex Technology. Photo courtesy of CATL

Zeng’s net worth dropped 5.3% to $43.3 billion, ranking 47th globally. He is the chairman and CEO of Contemporary Amperex Technology (CATL), the world’s largest battery maker.

The company’s shares fell 2.6% Tuesday, having fallen 31% year-to-date. It is now 35% pricier in Hong Kong than on the mainland bourse, down from June’s record premium of roughly 60%, according to Bloomberg.

Southeast Asia’s richest man Pham Nhat Vuong ranked fifth in wealth loss with $1.4 billion wiped off his fortune.

Vingroup chairman Pham Nhat Vuong. Photo courtesy of Vingroup

Vingroup chairman Pham Nhat Vuong. Photo courtesy of Vingroup

His net worth dropped 4% to $32.4 billion shares of his company Vingroup tumbled to the lowest in two months on Monday.

Vingroup shares have been on a downward trend since they reached a historic peak in early September amid the company’s expansion in electric car production and investment in key infrastructure projects in Vietnam, including metro lines and high-speed rails.

Other major wealth losers in the world on Tuesday were French fashion tycoon Bernard Arnault, whose wealth fell $1.9 billion to $119 billion.

American stock brokerage tycoon Thomas Peterffy’s net worth dropped $1.5 billion to $94.8 billion.

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