Asian markets mixed after Wall Street rises on dealmaking

Asian stock markets were mostly higher Tuesday after Wall Street rose on a flurry of corporate deals and China's economic activity improved.

Shanghai, Hong Kong and Seoul gained, while Tokyo retreated.

Wall Street's S&P 500 index closed 1.3% higher, driven by gains for technology, health care and finance stocks after chipmaker Nvidia and other companies announced acquisitions and drugmaker AstraZeneca said clinical trials of its coronavirus vaccine will resume.

“Wall St. appears to have recovered some of its mojo,” Mizuho Bank said in a report. “The question to ask, though, is whether we are dealing with optimism or there is just optimism about deals."

The Shanghai Composite Index gained 0.3% to 3,289.38 after the government reported retail sales rose 0.5% in August over a year earlier for their first positive growth this year. The Chinese statistics agency said that was a sign of “stable and continuous” recovery from the economy's downturn.

The Nikkei 225 in Tokyo lost 0.4% to 23,464.99 while the Hang Seng in Hong Kong added 0.5% to 24,750.45. The S&P-ASX 200 in Sydney was down less than 0.1% at 5,894.50.

India's Sensex opened up 0.1% at 38,800.66. New Zealand, Singapore and Bangkok gained while Jakarta retreated.

On Wall Street, tech stocks gained after Nvidia agreed to buy Softbank's stake in chipmaker Arm for $40 billion.

Oracle climbed 4.3% after the software maker beat out Microsoft to become the “trusted technology provider” of Chinese-owned video app TikTok. The agreement still requires approval from the Trump administration, which deemed TikTok a security risk and demanded its sale to a U.S. owner.

In other deals, Gilead agreed to buy Immunomedics for $21 billion. Verizon purchased Tracfone for US$6.25 billion and Alibaba invested $4...