Do you know these words: alphabet stock, barstrier, bookbuld, cartwheel, G-hedge, haircut, spider, swaption, vanna, wrangle......? Each term has its unique meaning you may not be able to find its definition in an ordinary dictionary. Derivatives market is a dynamic area with a vocabulary that is constantly changing. It is this dictionary's purpose to present an up-to-date vocabulary. About 10,000 entries have been drawn from futures, options, securities and financial engineering. Definitions are precise and right to the point. Whether you are an investor, a professional trader or an amateur, you will find this dictionary of immeasurable help.