Matrix SCS Kicks Off "Get Connected in Keystone 2007" Conference. Matrix Settlement & Clearance Services LLC (MSCS), the latest entrant in the rapidly growing online money market fund trading portal market, hosts a conference starting today in Keystone, Colorado. Monday morning, Crane Data's Peter Crane will join Matrix's Michael Rice, Dreyfus' Sue Ann Cormack, and Western Asset's John Bonczek on an "Introduction to Money Fund Portals" panel. While other portals are courting large corporate and securities lending investors, Matrix is targeting the middle market of banks and financial institutions.