The Billion Dollar Sure Thing by Paul E. Erdman (1973)

While slow flowing at times, this is still a good read. The information on the planned devaluation of the dollar is stolen (and just simply deducted by some quick minds), and memorable characters of international finance get into the action, including sleazy Swiss bankers, a US hedge fund manager, the Arab/Lebanese money changer and Russian foreign exchange bankers. The author, as the founder of a Swiss bank, is able to put real life perspective into the imaginary events.