Global stocks gained on Wednesday as a flurry of new policies from U.S. President Donald Trump combined with robust corporate earnings to bolster investor optimism, while tariff uncertainty kept the dollar near two-week lows.

Netflix shares (NFLX.O) surged 14% in after-hours trading as the streaming giant added a record number of subscribers last quarter, enabling it to increase prices for most service plans in the United States and other countries.

That helped lift Nasdaq futures 0.5% in Asia. S&P 500 futures also rose 0.2%.

Late on Tuesday, Trump announced that OpenAI, SoftBank and Oracle will form a joint venture called Stargate and invest up to $500 billion in artificial intelligence infrastructure. Shares of SoftBank (9984.T) surged 9% in Tokyo, while Oracle (ORCL.N) already gained 7% overnight.

Helping risk sentiment is also relief that Trump did not announce a more comprehensive sweep of tariffs at the start of his second presidency. Many investors and foreign capitals had expected tariffs to be among a raft of executive orders Trump signed in his first day in office.

Japan's Nikkei (.N225) jumped 1.4%, tracking broad gains on Wall Street. MSCI's broadest index of Asia-Pacific shares outside Japan (.MIAPJ0000PUS) rose 0.1% as falls in Chinese stocks offset broad gains in Taiwan and South Korea.   

Chinese blue chips (.CSI300) fell 1.2% and the Hong Kong's Hang Seng index (.HSI) lost 1.5%.

The temporary tariff relief has supported a pullback in Treasury yields. The U.S. 10-year Treasury yield was, however, 2 basis points higher in Asia at 4.595%, having dipped 4 bps overnight.