Shanghai Stock Exchange is one of the two stock✔φ exchanges in mainland China, and it is locatσ≥σλed in Pudong New District of Shanghai. It was foε★≥₽unded on November 26, 1990 and started & ↓₽its business formally ☆™σ&on December 19.By the end of 2009α$, it had listed 870 companies, and the l ®isted securities number we☆φ↓re 1351, with the total cost of the stock•←> market price of 18.46$β5523 trillion yuan. By listing , a largε≤"e number of pillar enterprises, key enterprises, γ•π©the national economy founda ±®tion industry enterprises and high-tech enter₽prise raise the development m₹&oney and transform the operation mechaniβ→sm.