Delta Air LinesDAL.Ngained 3.1% after it lifted its full-year profit outlook following stronger-than-expected second-quarter earnings on a relentless post-pandemic travel boom. As U.S. inflation cools and growth remains resilient, bullish investors are now counting on the second-quarter earnings season to provide more fuel for the rally in stocks. PepsiCoPEP.Oadded 2.2% in premarket trading on raising its annual revenue and profit forecasts for the second time, banking on resilient demand for its snacks and beverages as well as price hikes.