U.S. stocks closed mixed on Thursday as investors sifted through the country's jobs data and a batch of corporate quarterly reports.

The Dow Jones Industrial Average was down 28.97 points, or 0.13 percent, to 21,611.78. The S&P 500 lost 0.38 points, or 0.02 percent, to 2,473.45. The Nasdaq Composite Index gained 4.96 points, or 0.08 percent, to 6,390.00.

The number of Americans filing for unemployment benefits fell more than expected last week, touching its lowest level in nearly five months, suggesting another month of strong job growth.

In the week ending July 15, the advance figure for seasonally adjusted initial jobless claims was 233,000, a decrease of 15,000 from the previous week's revised level, the Labor Department said on Thursday. The latest reading was lower than market consensus of a 246,000-decline.

In corporate news, shares of T-Mobile U.S. rose over 2 percent on Thursday after the company reported a jump in second quarter earnings.

The wireless network operator's profit surged to 67 cents a share from 25 cents a year earlier and came in far higher than expectations of 38 cents. Moreover, the company added 1.3 million customers over the three-month period.

Earnings season has gotten off to a solid start. Of the 76 S&P 500 components that had reported, 76 percent exceeded earnings expectations while 74 percent topped on revenue, according to latest data from consulting firm The Earnings Scout.

In the previous session, U.S. stocks closed at record highs as market sentiment was lifted by the country's upbeat housing data and better-than-expected corporate quarterly reports.