Japan's Nikkei 225 share average climbed more than 3% on Wednesday, marking a sharp acceleration in the index's recent upward momentum.
The broad-based rally was driven by a surge in artificial intelligence-related equities, which rallied in lockstep with their US counterparts, alongside renewed investor appetite for companies with robust earnings outlooks.
21% to 4,047.62, signaling that buying interest is spreading beyond the largest caps.
The move extends a three-session winning streak for the benchmark index, which had previously advanced 0.6% to 70,497.49 by midday trading.
The broader Topix index also posted gains, edging up 0.21% to 4,047.62, signaling that buying interest is spreading beyond the largest caps.
The session's strength reflects a growing alignment between Japanese tech valuations and the US market, as investors continue to rotate into growth sectors with clear AI exposure.
This repricing underscores the persistent influence of US tech trends on Asian markets.