Wall Street rises on Nvidia earnings, Fed speech in focus

Wall Street opened higher on Thursday, driven by extraordinary results from chip giant Nvidia, with investors also awaiting a speech from the US Federal Reserve chair. The positive market reaction follows Nvidia's strong earnings report, which boosted investor confidence in the tech sector. The Fed chair's upcoming speech is expected to provide clues on the future direction of US monetary policy. These gains come amid broader economic uncertainty, including trade tensions between the US and Canada, though the tech sector's performance helped lift overall market sentiment at the opening bell.