That compares to a primary market of $100 billion value at retail, pretty much in line with the $66.7 billion that we estimate the wholesale market in our annual study. However, in five years, StockX projects that the secondary market will grow to 15-25% of the size of the wholesale market, citing surveys from Piper Jaffray and NPD in a report it issued on trends in the secondary market. The report also claimed gross merchandise sales of over $1 billion during 2019 in which the company raised $110 million at a $1 billion valuation, doubled its registrations, operated in 197 ... Log in to view full article.