Long term investors cannot achieve complete diversification without at least considering the possibility of adding foreign bonds and equities, which may be denominated in foreign currencies, to their portfolio.  Likewise, an investor cannot properly protect those investment against adverse movements in underlying currencies or interest rates without a wide array of instruments with which to hedge those investments.  Speculators, on the other hand, may wish to perform analysis on and trade in many different markets.  These are the reasons why we strive to offer trading in the widest possible array of markets and financial instruments, and why we will continue to add new markets whenever possible.