BM&FBOVESPA is a Brazilian company formed in 2008 through the merger of the São Paulo Stock Exchange and the Brazilian Mercantile & Futures Exchange. It is the largest securities, commodities, and futures exchange in Brazil. The document discusses various types of direct market access available to BM&FBOVESPA, including connections through brokerages or direct technological connections. It also covers recent tax measures in Brazil affecting foreign investors and expectations that alternative trading platforms may emerge to challenge BM&FBOVESPA's dominance.