According to SPAC Research, almost 600 SPACs are looking for acquisition targets after a year of increased issuance. Some deals that were announced failed to materialize due to the increasing competition in this market. At the close of the last year, Fertitta Entertainment's planned merger with blank-check company Fast Acquisition Corp was canceled. Some of the recent deals to be scrapped include Acorns fintech company, ServiceMax cloud-based software platform and online grill seller BBQGuys. There has been an increase in SPAC listing withdrawals. This means that sponsors have decided to terminate their S-1 listing. According to SPAC Research, there were almost 20 of these cases during January. This is a significant increase from the single-digits for the previous two quarters. — CNBC's Gina Francolla contributed reporting. Disclosure: Comcast Ventures and NBCUniversal are both investors Acorns CNBC and CNBC have a content partnership.