World Shares Sharply Lower After Wobbly Day on Wall Street

A person wearing a protective mask walks in front of an electronic stock board showing Japan's Nikkei 225 index at a securities firm in Tokyo, Japan, on Sept. 28, 2022. Eugene Hoshiko/AP Photo

TOKYO—World shares tumbled Wednesday after a wobbly day on Wall Street as markets churned over the prospect of a possible recession.

U.S. futures and oil prices declined and China’s yuan weakened sharply.