U.S. stocks closed mostly unchanged but Facebook (FB) helped to push the S&P 500 to end on another record high. Mixed economic data on the jobs and housing fronts came on one of the heaviest days of the earnings season. The benchmark 10-year note yield ended the day up about 2.5% as investors favored stocks. Both gold futures and crude oil prices were also down about 1%. Facebook was really â€œLIKEDâ€ by investors. The social media stock added to gains after reporting results that far exceeded Wall Streetâ€™s expectations. But shares of Caterpillar (CAT)tumbled after the company disappointed sales expectations. Similar story for Dunkin Brands (DNKN). The chain lowered its full-year earnings target. AT&T (T) also lost more than 1 percent after its second-quarter earnings fell. On tap to report earnings Friday include Xerox (XRX), Black and Decker (SWK)and Tyco (TYC).