While Tether may be technically insolvent there looks like there would need to be another $40 Billion in redemptions to really test the peg based on the latest attestation. (They had $82B MC & now have a $72B MC. Cash Equiv. - Comm. Paper & COD = $50B back in March).

My guess is they may have weathered the storm for now. Probably need a few more weeks to fully confirm, but high price today was .9995. If redemptions fully stop or MC goes back up slightly then peg probably returns.