This is actually a warning to all non-chess HIN brokerage customers. I found this article last year about the BBY collapse and the custodian customers will only be getting a fraction of their stock portfolio. Scary stuff.
https://www.fool.com.au/2020/08/21/bby-clients-to-get-some-m…
More details:
https://home.kpmg/au/en/home/services/advisory/deal-advisory…
Don't worry. The feds will bail out the investors.