Still, with SPACs raising more money in the first three months of 2021 than they did throughout all of last year, some of the recent disinterest may be "misplaced," Morgan Creek Capital Management's Mark Yusko told CNBC this week. "This is a long-term trend," Yusko, his firm's founder, CEO and chief investment officer, said Monday on CNBC's "ETF Edge." "The SPAC merger, we believe, will become the preferred method for high-growth, innovative companies, or what we call the companies of the future, to go public." After a "frenetic" first quarter for new issuances and the SEC crackdown, "it's normal and natural to have a little lull," he said.