A TV cameraman films the screens showing the Korea Composite Stock Price Index (KOSPI) and the foreign exchange rate between U.S. dollar and South Korean won at a dealing room of Hana Bank in Seoul, South Korea, Thursday, June 18, 2026. (AP Photo/Lee Jin-man)

Dealers work at a dealing room of Hana Bank in Seoul, South Korea, Thursday, June 18, 2026. (AP Photo/Lee Jin-man)

A statue is placed on a bench near monitors showing Japan's Nikkei 225 index, hanging in a business building in Tokyo, Thursday, June 18, 2026. (AP Photo/Hiro Komae)

Colin Jarvis, head of Forward Deployed Engineering for OpenAI, speaks during its business event with SoftBank at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)

Mark Chen, chief research officer for OpenAI, speaks during a talk with Masayoshi Son, chairman and CEO of SoftBank Group, at their business event at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)

Colin Jarvis, head of Forward Deployed Engineering for OpenAI, speaks during its business event with SoftBank at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)

Masayoshi Son, left, chairman and CEO of SoftBank Group, listens to Mark Chen, chief research officer for OpenAI, during a talk at their business event in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)

Masayoshi Son, left, chairman and CEO of SoftBank Group, speaks as Mark Chen, chief research officer for OpenAI, listens during a talk at their business event at a hotel in Tokyo, Tuesday, June 16, 2026. (AP Photo/Hiro Komae)