An investor looks at an electronic board showing the stock information at a brokerage house in Hefei, Anhui province September 25, 2008. China's benchmark stock index rose more than three percent in early trade on Thursday to its highest in three weeks, buoyed by share buybacks by state-owned firms and by signs of progress in market reforms. REUTERS/Stringer (CHINA). CHINA OUT. NO COMMERCIAL OR EDITORIAL SALES IN CHINA.