Notable healthcare headlines for the week: Merck, Roche and Bausch Health in focus

Wall Street powered to its second-best weekly advance of 2025 on Friday, with the benchmark S&P 500 (SP500) jumping nearly 5%.

For the week, the S&P advanced +4.6%, while the tech-heavy Nasdaq Composite jumped +6.7%. The blue-chip Dow climbed +2.5%.