06:59 AM EDT, 10/06/2025 (MT Newswires) -- Asian stock markets were mixed in holiday-thinned trading Monday, with Tokyo staging a powerful rally on a change in government leadership, and Hong Kong falling back as the US government shutdown lengthened.

Trading floors in Shanghai, Seoul, and Taiwan were shuttered, while other regional exchanges were uneven.

In Japan, the Nikkei 225 opened higher and rose to the close, finishing up 4.8% after Japan's ruling political party elected Sanae Takaichi, known as a fiscal expansionist, as its leader. A softer yen boosted export issues.

The benchmark Nikkei 225 rose 2,175.26 to 47,944.76, striking a fresh all-time high, as gaining issues outnumbered losers 209 to 14.

Leading the upside was industrial robot-maker Yaskawa Electric, up 19.3%, while bank Resona declined 1.8%.

In Hong Kong, the Hang Seng Index opened lower and slipped thereafter, closing down 0.7% as traders weighed the Washington shutdown and awaited fresh catalysts from Beijing.

The broad gauge Hang Seng fell 183.15 to 26,957.77, as losing issues outnumbered gainers 71 to 16. The Hang Seng TECH Index lost 1.1% on the day, while the Mainland Properties Index fell 0.7%.

Leading the upside was Zijin Mining, gaining 2.5%, while Li Auto declined 3.3%.

On the other regional exchanges, the Australian ASX 200 declined 0.1%; the Singapore Straits Times Index rose 0.1%, and the Thai Set declined 0.6%. In late trading in Mumbai, the Sensex was up 0.7%.

In other news, Thailand's consumer price index (CPI) declined 0.72% year-on-year in September, on the heels of a 0.79% decrease in August, reported the Ministry of Commerce. The Bank of Thailand meets on Wednesday to ponder monetary policy.