Wall Street was mixed in premarket trading on Thursday as major U.S. airlines stumbled and health insurance companies soared. Futures for the S&P 500 lost 0.1% before the opening bell, while futures for the Dow Jones Industrial Average ticked up 0.

Asian shares traded mixed Tuesday, echoing Wall Street trading, where gains for oil-and-gas producers helped offset drops for Nvidia and other Big Tech companies. Japan's benchmark Nikkei 225 slipped 1.

Netflix, Oracle and other technology stocks are lifting U.S. indexes Wednesday as their profits pile higher and excitement builds around the moneymaking prospects of artificial intelligence. The S&P 500 was up 0.

Netflix shot up 14.6% after it reported adding nearly 19 million subscribers during the holiday-season quarter and it topped sales and profit targets. The video streaming service’s expansion into live programming appears to be paying off as it wrapped up its best year ever with more than $40 billion in revenue.