Currency pricing and valuation services; determining and providing trade-weighted index valuation of foreign and domestic currencies; providing currency exchange rates for foreign and domestic currencies; providing currency benchmark values; valuation of financial transactions involving foreign or domestic currencies; providing real-time and historic financial information related to foreign and domestic currencies; determining and providing financial information relating to the value of the Chinese Yuan relative to other foreign and domestic currencies; providing currency index and valuation services and information on a subscription basis to participants via a computer terminal or a mobile communication device; and providing any or all of the aforesaid services on-line from a global computer network, the Internet, and via interactive electronic media