From this article:
https://sports.yahoo.com/chaos-in-co...191058703.html
In May 2020, the president and CEO of Collectors Universe (PSA's parent company), Joe Orlando, revealed to shareholders that the card backlog was more than one million cards. It grew since, prompting the shutdown.
Does anyone have firm data on what the PSA backlog is right now? I have seen numbers thrown around (5 million, 10 million) but no hard evidence.