The big question with Tether has been, if they are holding commercial paper, whose commercial paper? Traders who deal in commercial paper of real companies that do real stuff don't see Tether present in that market. The dollar amounts are too big to hide. The suspicion is that their "commercial paper" is high-interest loans to other cryptocurrency companies. With the whole crypto sector in decline, those loans are at…
In August 2021 The Economist estimated Tether to be leveraged 383-to-1. That's incredibly unstable. https://www.economist.com/leaders/2021/08/07/why-regulators-...