Traders on the floor of the New York Stock Exchange.Source: NYSEEnthusiastic SPAC financiers drove shares of numerous pre-merger deals up drastically prior to theres even a rumor about a target business, and they could end badly if their chosen takeover flops.A handful of current blank-check business are trading more than 40% above their initial public offering rate, according Goldman Sachs data. Such high expectations might be hard to fulfill these days given the large variety of SPACs rushing to get their deals done. There are an overall of 326 SPACs seeking acquisitions with $103 billion of capital, according to Goldman.Take a take a look at the SPACs trading at the biggest premiums to their IPO price.