By Anora Mahmudova, MarketWatch

NEW YORK (MarketWatch) -- U.S. stocks rose Tuesday after China's central bank injected liquidity into the financial system, though gains in blue-chips evaporated on earnings disappointments.

The S&P 500(SPX) edged up 1.9 points, or 0.1%, to 1,840.58, at its highs surpassing a recent record close. The Dow Jones Industrial Average (DJI) rose at the open and then turned lower. It was last down 53 points at 16,405. The Nasdaq Composite(RIXF) was up 12 points at 4,209.

U.S. markets were closed on Monday in observance of Martin Luther King Jr. Day.

Investors focused on earnings releases in a week light on economic news ahead of the Federal Reserve meeting scheduled for next week.

Dragging on the Dow, Verizon Communication Inc. (VZ) shares fell 1.8%. The firm said it swung to a profit amid a growth in subscribers, particularly in its wireless and FiOS divisions. The firm said it had adjusted earnings of 66 cents, beating Wall Street estimates of 65 cents, according to Thomson Reuters poll.

Shares in Johnson & Johnson(JNJ) fell 1.6%, also hitting the Dow, after the company reported fourth-quarter results. While the quarterly earnings per share were above analyst expectations, the full-year outlook disappointed investors.

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Delta Air Lines Inc. (DAL) shares climbed 3.1% on Tuesday after the firm's fourth-quarter earnings beat Wall Street expectations and Delta offered an upbeat outlook for the current quarter.

Forest Laboratories Inc. (FRX) gained 2.6% after the pharmaceuticals firm reported that it swung to a profit in the third-quarter and upgraded its outlook for the current quarter.

The S&P 500's cyclical sectors -- energy and natural resources -- were among the biggest gainers after the People's Bank of China said it provided emergency funding support for commercial banks as they gear up to meet demands for cash ahead of the Lunar New Year. The news lifted Hong Kong stocks as well as European stocks.

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