U.S. stock futures are poised for gains ahead of Trump-Putin summit. Dow futures up 260 points, S&P 500 climbing 0.1%, Nasdaq 100 falling 0.2%. UnitedHealth boosts Dow with 11% increase after Berkshire Hathaway stake purchase.

Read more at Dow Jones & Company.: Markets Gain Ahead of Trump-Putin Summit as Fed Rate-Cut Picture Blurs