A person walks in front of an electronic stock board showing Japan's Nikkei index at a securities firm Tuesday, Sept. 15, 2026, in Tokyo. (AP Photo/Eugene Hoshiko)

A person walks in front of an electronic stock board showing Japan's Nikkei index at a securities firm Tuesday, Sept. 15, 2026, in Tokyo. (AP Photo/Eugene Hoshiko)

A person stands in front of an electronic stock board showing Japan's Nikkei index at a securities firm Tuesday, Sept. 15, 2026, in Tokyo. (AP Photo/Eugene Hoshiko)

A person walks in front of an electronic stock board showing Japan's Nikkei index at a securities firm Tuesday, Sept. 15, 2026, in Tokyo. (AP Photo/Eugene Hoshiko)

Canadian Prime Minister Mark Carney speaks to Canadian business leaders at the Canada Investment Summit welcome reception in Toronto, Sunday, Sept. 13, 2026. (Jon Blacker/The Canadian Press via AP)

Canadian Prime Minister Mark Carney speaks to Canadian business leaders at the Canada Investment Summit welcome reception in Toronto, Sunday, Sept. 13, 2026. (Jon Blacker/The Canadian Press via AP)

Canadian Prime Minister Mark Carney speaks to Canadian business leaders at the Canada Investment Summit welcome reception in Toronto, Sunday, Sept. 13, 2026. (Jon Blacker/The Canadian Press via AP)

FILE - A general view shows the New York Stock Exchange, Friday, Aug. 7, 2026, in New York. (AP Photo/Yuki Iwamura, File)