March 20, 2011 weekend, BAC will upgrade the electronic trading system, BAC,banks and exchanges will be jointly launched six more accurate quotation system. As the market has consistently adhered to the principle of BAC, the changes do not affect the BAC to continue to provide fixed-spread variety of transactions. The upgrade is intended to reduce the customer's transaction costs,for customers in the rapid fluctuations in the market to seek better investment opportunities. For more information, please visit on March 20 announced a new variety of spreads and margin trading policy table. If encounter unexpected risks and problems, we may at any time announce a new upgrade program to upgrade delay time, please pay attention.