Companies whose shares are expected to trade actively in today’s session after the holidays are GOL Linhas Aereas Inteligentes SA (NYSE:GOL), Netflix Inc. (NASDAQ:NFLX), Infinity Pharmaceuticals Inc. (NASDAQ:INFI), EnCana Corporation (NYSE:ECA) and Herbalife Ltd (NYSE:HLF).

stocks to watch

GOL Linhas Aereas Inteligentes SA (NYSE:GOL): Shares of the U.S.-listed Brazilian carrier rose 13.04 percent to $6.58 in early trading. The stocks were already up 7.4 percent before the markets closed for Christmas on Tuesday. The company announced Friday that it is considering an IPO for its Smiles frequent-flyer business. The company also added that domestic available seats declined 17 percent in November from a year ago.

Netflix Inc. (NASDAQ:NFLX): Netflix officially restored streaming video services Tuesday. A technical glitch at Netflix’s web service provider Amazon.com Inc. (NASDAQ:AMZN) had triggered an outage across the North America. Engineers at Amazon and Netflix worked all night to repair it. Netflix shares are down 0.60 percent in early trading to $89.69.

Infinity Pharmaceuticals Inc. (NASDAQ:INFI): The drug maker has signed a development and license agreement with Japan’s Takeda Pharmaceutical Co. (TYO:4502) for an enzyme that can fight cancer. RBS analysts have increased their price target for Infinity Pharmaceuticals to $38 from $32. The stocks also got a boost earlier this month after the company sold shares worth $170 million to fund the research & development activities. Infinity shares were up 2.17 percent to $34.82 in early market trading.

EnCana Corporation (NYSE:ECA): The company’s shares plunged 2.12 percent to $19.82 at the close of Tuesday trading session, after EnCana announced to sell 30 percent of its stake in Kitimat LNG export terminal project to Chevron Canada Ltd. However, shares were almost flat at the start of today’s trading session.

Herbalife Ltd. (NYSE:HLF): The nutritional supplements producer is working with the law firm Boies, Schiller & Flexner LLP to defend itself against attacks by William Ackman. The law firm founded by David Boies handles complex corporate litigation. Last week, Ackman announced that he had been shorting Herbalife for months and called the company an unsustainable “pyramid scheme.” Herbalife shares were up 5.79 percent to $27.56 in early trading.