(Image credit: Getty Images) Stocks were mixed to start a major week for earnings, with Big Tech and Big Energy set to report results and offer guidance amid a still-simmering war in the Middle East. Meanwhile, the Federal Reserve and the rest of the Group of Seven central banks are all set to meet this week to discuss monetary policy for economies accounting for about half of global GDP. "Despite bouts of volatility," E*TRADE from Morgan Stanley Managing Director Chris Larkin observes, "for most of this month the showdown between geopolitical uncertainty and enthusiasm over AI-driven earnings growth has been a one-sided battle." Indeed, the S&P 500 was up 9.8% from the end of March through Friday, the Dow Jones Industrial average 6.2% and the Nasdaq Composite more than 15%. From just $107.88 $24.99 for Kiplinger Personal Finance Become a smarter, better informed investor.…