Shares of Paramount and Warner Bros. Discovery led gains on the S&P 500 Friday on speculation about a deal. Erik McGregor / LightRocket / Getty Images Close Key Takeaways Shares of two entertainment giants pushed higher for a second straight day as investors weighed the possibility of a takeover bid, while vaccine makers came under pressure following a report that health officials from the Trump administration seek to link COVID-19 vaccines with child deaths. Major U.S. equities indexes were mixed as invest ...