Main Securities Limited | Business Overview | Exchange Rankings   Clients Market Coverage Memberships Exchange Rankings Technology Platforms Strategy & Support Benefits RTS OTKRITIE Financial Corporation ranks TOP-10 among leading RTS Classic market operators FORTS OTKRITIE Financial Corporation ranks TOP-3 among the most active derivatives operators MICEX OTKRITIE Financial Corporation ranks TOP-10 among the largest stock market operators /main trading mode/ by the size of registered client base as well as amount of active clients and their trading volume