London Stock Exchange International Order Book (IOB) enables investors to unlock the potential of some of the world’s fastest growing markets through a single central electronic order book. It offers easy, cost-efficient and direct access to securities via global depositary receipts (GDRs) from over 30 countries, including markets in Central and Eastern Europe, Asia and the Middle East. The market has grown rapidly since its inception in 2001, with Gazprom, Sberbank and Lukoil among the most heavily traded securities on London Stock Exchange. Shanghai-London Stock Connect GDRs are also traded on the International Order Book, on the Shanghai Segment.