The Nikkei 225 Index rallied 1.8% at 47,672.67, recovering part of its 2.6% slide in the previous session as Japanese markets returned from a holiday.
The broader Topix rose 1.6%.
SoftBank Group, a major investor in chips and artificial intelligence, rose 5.1%, recovering from a 6% slide on Tuesday. Chip-testing equipment maker Advantest rallied 2.2% after a two-day skid.
Investor sentiment has been dented by an escalation of tensions between the United States and China, as well as political haggling to decide Japan’s next prime minister.
“We’re seeing a corrective rebound in semiconductor-related stocks that fell sharply yesterday,” said Fumika Shimizu, a strategist at Nomura Securities.”Uncertainty surrounding Japan’s political situation has persisted since last Friday,” Shimizu said. “Achieving clarity on that front would likely be the driver needed for a genuine return to an upward trend.”China last week announced a major expansion of its rare earths export controls, and U.S. President Donald Trump threatened to raise tariffs on Chinese goods to triple digits.
Sanae Takaichi, the head of Japan’s ruling Liberal Democratic Party (LDP), is making arrangements to hold meetings with three major opposition parties on Wednesday, the Jiji news agency reported.
Her bid to become prime minister was thrown into doubt when the LDP’s junior coalition partner quit on Friday.
Online retailer Mercari surged 14% after saying it was pulling out of its on-demand employment service. Mall operator Aeon jumped 9.4% after reporting record sales and operating profit for the half-year period.
Sapporo Holdings advanced 1.8% after the Nikkei newspaper said the beer maker was close to a deal to sell its real estate business. (Editing by Subhranshu Sahu)