Sunday links: extraordinary longevity

Markets Why municipal bonds are underperforming in 2025. (morningstar.com) How much is too much U.S. stock exposure? (ft.com) Buffett Warren Buffett is stepping down as CEO of Berkshire Hathaway ($BRK.A) (cnbc.com) Who is Greg Abel, the next CEO of Berkshire Hathaway ($BRK.A)? (wsj.com) Nir…