New York - US stocks rose early on Tuesday, joining a global rally as slower growth in China fuelled speculation of more government stimulus in the world's second-biggest economy.
Thirty minutes into trade, the Dow Jones Industrial Average stood at 16 101.45, up 113.37 points (0.71%).
The broad-based S&P 500 rose 11.87 (0.63%) to 1 892.20, while the tech-rich Nasdaq Composite Index gained 26.81 (0.60%) at 4 515.22.
The stock market was closed for a public holiday on Monday.
China's gross domestic product (GDP) expanded 6.9% in 2015, official data showed on Tuesday, which was the slowest growth since 1990 but met analysts' expectations.
Analysts cited speculation of more Chinese stimulus as a driver of stock buying globally, as well as the bounce from a bruising open to 2016 that has left the S&P 500 down about 8% for the year.
Worldwide sales declined
Delta Air Lines rose 2.7% after reporting fourth-quarter earnings of $980m compared to a loss of $712m in the year-ago period. Results were boosted by a 42% drop in fuel expenses.
Morgan Stanley rose 1.9% as it reported fourth-quarter earnings per share of 39c, 6c above analyst expectations.
Bank of America rose 0.6% after reporting a 9.3% rise in fourth-quarter earnings to $3.3bn, besting expectations.
Petroleum-linked stocks were lower, with Dow member Chevron down 0.6%, EOG 1.4% and Halliburton 0.4%.
Twitter fell 2.2% on news the microblogging company suffered outages in much of Europe and in some other countries, including Brazil, the Philippines, Nigeria and Uganda.
Tiffany fell 5.8% as it said worldwide net sales declined 3% in the key November-December period due in part to the strong dollar and weak tourist activity in some markets. The jeweller also lowered its earnings forecast, projecting a decline of 10% for the year, in part due to severance expenses from cutting staff.