"helpers"
Yes
not in every thread -lately when they land on a digits.
Just a reminder while everyone is paying attention to the banks.
The bank gambling action called 'credit default swaps' and 'derivatives' which lead in-part to 2008 crisis -
was written into Dodd-Frank as a covered by FDIC. It's not just large commercial accounts.
https://content.next.westlaw.com/practical-law/document/Ibb0a1103ef0511e28578f7ccc38dcbee/Summary-of-the-Dodd-Frank-Act-Swaps-and-Derivatives?viewType=FullText&contextData=(sc.Default)&transitionType=Default&firstPage=true
https://www.federalregister.gov/documents/2020/07/01/2020-14097/margin-and-capital-requirements-for-covered-swap-entities