Nikkei rises as Anthropic IPO filing lifts AI-related shares

TOKYO: Japan’s Nikkei share average rebounded on Tuesday after optimism returned to the AI sector following a filing by industry bellwether Anthropic to list its shares.

The benchmark Nikkei 225 advanced 1.73 percent to close at 63,268.37, paring an earlier gain of more than 2 percent. The broader Topix rose 0.61 percent to 3,997.37.

Anthropic disclosed steep losses and red-hot revenue growth in its filing for a US initial public offering, laying out its ambition to build AI systems capable of reshaping the global economy despite the high costs of developing the technology. The tech-heavy Nikkei tends to move in tandem with the US Philadelphia chips index, which rose 2.8 percent overnight.

Chip-testing equipment maker Advantest surged 8.98 percent, giving the Nikkei its biggest boost. Technology investor SoftBank Group rose 4.95 percent. Chip-making equipment maker Tokyo Electron added 3.07 percent.