U.S. technology futures jumped in early European trading after Nvidia’s stronger earnings forecast and higher revenue outlook renewed optimism about artificial-intelligence stocks. Nvidia (NVDA) was down 1.59%, but the world’s most valuable company’s guidance suggested greater confidence in the durability of AI demand, lifting sentiment across AI-linked equities globally. Software earnings also eased investor pessimism about the sector. U.S. Treasurys were little changed as markets focused on Federal Reserve Chair Kevin Warsh’s highly anticipated appearance at the Jackson Hole symposium on Friday.