On August 11, 2011, the CMB announced that Article 25 the Communiqué Regarding Margin Trading, Short Sales and Lending and Borrowing of Securities (Communiqué Serial No. V/65) (published in the Official Gazette dated July 14, 2003, No. 25168) was amended. According to such amendment, the CMB increased the minimum margin ratio that a client of a brokerage firm shall maintain in order to start short selling transactions from 50% to 70%.