Since February 2021, when the SPAC (special-purpose acquisition company) craze was booming, a market selloff has wiped out about $75 billion of the value of companies that went public using SPACs, according to a Dow Jones Market Data analysis of figures from SPAC research. The analysis examined a group of 137 companies that went public using SPACs by mid-February this year. According to the analysis, these companies have lost 25 percent of their combined value since then. Over the same period, the Dow Jones Industrial gained 13 percent.