U.S. Bank Launches Cash Solutions Money Fund Trading Portal. Minneapolis-based U.S. Bancorp is now officially live with its U.S. Bank Cash Solutions Portal, an online money market fund trading platform. The new website is powered by technology from CacheMatrix Holdings LLC. "With corporate cash reserves at historic levels, U.S. Bank Cash Solutions Portal provides treasury professionals with a terrific fund management solution," said CacheMatrix Founder & CEO George Hagerman. AFP recently released a survey showing the number of corporate users of money fund "portal" technology plateauing, 23% of companies in the 2007 survey "use an electronic, multi-family trading portal to execute" some short-term investment trades vs. 24% in the 2006 survey.