Several high profile SPACs have already been announced in Amsterdam. Citi says it has mandates for several more to be listed in Europe. These are the top three sectors that sponsors are like to tap for merger partners. Special Purpose Acquisition Companies, or SPACs, are all the rage right now in the investing community, as celebrities and finance veterans alike jump in. These "blank check companies" are listed on the stock market and are formed solely to acquire an existing private company to take it public, without the risks and cost inherent in an initial public offering. For some, this is more evidence of market exuberance caused by excess