completion, has diversified the market. As of 2015, TSE does not offer much complicated Islamic finance instruments such as derivatives (except ETFs and a few put options), nor does it allow short sales or margin trading (except for futures) in contrast to the neighboring Dubai Financial Market. Futures In 2008, commodity Futures came onto the Iran Mercantile Exchange (IME). In July 2010, TSE introduced six single-stock futures contracts based on Parsian Bank and Karafarin Bank, which will expire in two, four and six months. Thirty-one of the 88 brokerages active in the TSE are licensed to trade the futures contracts. The leverage for futures contracts is set at 1-to-10. TSE will only deal in the derivatives through electronic trading. In the TSE's derivatives market, over 13,200 single stock futures contracts were traded in 2011 with a value of over 510 billion Rials. Outlook Economic sectors According to the Wall Street Journal in 2015, Iran is "full of well-run companies". Also true, there are companies in Iran which suffer problems such as mismanagement, energy inefficiency, overstaffing, opaque auditing systems, obsolete marketing and distribution networks and high levels of debt. 2007: There were 324 companies listed on the TSE with a total market capitalization (MC) of US$42,452 million. Close to 60% of the MC relates to listed companies from the following sectors: Basic Metals, Motor Vehicles and Trailers, Chemicals and By-Products, Non-Metallic Minerals Products. A total of 161 companies from these sectors are listed on the TSE, which translates to 49.7% of total companies listed. Largest stocks include: Mobarakeh Steel Co. with MC of US$3,218 million, which translates to 7.6% of MC, National Iranian Copper Industries Company (Persian: Sanaye Mese Iran) at 6.8% of MC, SAIPA at 5.3% of MC. 2008: other companies in the top spots included: Gol Gohar Iron Ore Company ($2.1 billion MC), Chadormalu Mining and Industrial Company ($2 billion), Kharg Petrochemical Company (over $1 billion), Ghadir petrochemical companies (over $1 billion), Khouzestan Steel Company (over $1 billion), Power Plant Projects Management Company (MAPNA) (over $1 billion), Retirement Investment Firm (over $1 billion), Iran Khodro (over $1 billion), Metal and Mine Investment Companies (over $1 billion). This indicates that the capital market in Tehran is heavily concentrated on four economic sectors with companies that make up nearly half of the total listed companies on the exchange. While 163 companies listed are spread out amongst 26 sectors, with the "Food