Traders work on the floor of the Brazilian Mercantile and Futures Exchange in Sao Paulo, Monday, September 15, 2008. Investors bailed from Brazilian stocks and the nation's currency fell sharply against the US dollar following news that Wall Street's Lehman Brothers had filed for bankruptcy and Merrill Lynch would be sold to Bank of America. The main index of Brazil's Bovespa index was down 3.3 percent in midday trading and the Brazilian real was off 1.2 percent against the greenback. [Agencies]