Reddit will join the S&P 500 on August 18, 2026 after shares jumped 11% on the announcement, but analysts flag AI-related risks to its ad

Reddit (RDDT) stock jumped more than 12% in extended trading on Thursday after S&P Dow Jones Indices announced that the social media company...

Reddit shares have experienced a remarkable surge following the announcement of their inclusion in the S&P 500 index. With index funds compelled to acquire millions of Reddit…