Tehran Stock Exchange (TSE)’s main index (TEDPIX) gained 3.459 points or 4.2 percent to 85,832 in the sixth Iranian calendar month Shahrivar (August 23-Septemebr 22), Tasnim news agency reported on Wednesday. As reported, 16.979 billion securities worth 45.874 trillion rials (about $1.174 billion) were traded through 1.170 million deals in the stock market.