The latest market swing shows how quickly AI‑related stock moves can affect even the wealthiest people in Asia. On Tuesday, three Asian billionaires ranked among the five biggest single‑day losers worldwide, making this story worth a closer look.

Forbes reported that Masayoshi Son lost $4.2 billion, a 6.9 % drop, as SoftBank’s shares fell 5.24 % on Tuesday, reducing his net worth to $56.2 billion and placing him 34th globally. SoftBank’s stock dip is part of a broader AI‑related weakness this month. According to the source, this weakness is linked to concerns over the company’s high debt levels.

Robin Zeng, founder and CEO of Contemporary Amperex Technology (CATL), saw his fortune shrink by $2.4 billion, a 5.3 % fall, bringing his net worth to $43.3 billion and ranking him 47th worldwide. CATL’s shares dropped 2.6 % on Tuesday and are down 31 % year‑to‑date. The battery maker remains the world’s largest, but its stock has been pressured.

Vietnamese tycoon Pham Nhat Vuong experienced a $1.4 billion loss, a 4 % decline, leaving his net worth at $32.4 billion after Vingroup shares fell to a two‑month low on Monday. The shares have been sliding since reaching a historic peak in early September, amid the group’s expansion into electric cars and infrastructure projects. Vuong’s loss placed him among the top five single‑day wealth losers.

The same AI‑driven market turbulence also hit Bernard Arnault and Thomas Peterffy, who lost $1.9 billion and $1.5 billion respectively. It shows how quickly tech‑related price swings can erase billions from even the richest investors.