S&P 500 flat as higher bond yields counter tech optimism

By Shashwat Chauhan and Tharuniyaa LakshmiThe benchmark S&P 500 was flat on Tuesday, as rising government bond yields hurt risk sentiment and offset gains in AI-related stocks driven by optimism about Anthropic's plan to go public.The yield on the benchmark 10-year Treasury bond TVC:US10Y climbed t…