search: Investec downgrades LLOY LN, MS downgrades LINTA/WLP/CERN/MCK & upgrades FM/WAG Key Research: Citi downgrades BAER VX, Macquarie downgrades XTA LN, UBS downgrades DPW GY, Capstone cuts DGI Key Research: GS downgrades GENL LN & AFR LN, GS upgrades OPHR LN, CS & Numis downgrade CRH LN Key Rese