The latest and newest ‘craze’ to hit Wall Street are Special Purpose Acquisition Companies, or SPACs. While SPACs have been around for decades, their popularity has recently increased exponentially. There have been 433 IPOs on the US stock market this year, as of April 21, 2021. That is +982.5% more than the same time in 2020, which had 40 IPOs by this date. The majority of these IPOs have been SPACs.