You can't trust short volume as short interest. It is so misunderstood in otc land that Finra put out a report about it last year. For example the MM that sells for the noteholder will sell short all day and cover the same day using shares from the noteholder (that t-trade posted after hours). That shows up as short volume. Anyone daytrading wouldn't have the actual shares they just bought to sell back the same day, so those show up as short. As does other many long transactions.

But with that said, the noteholder has been selling new shares every day for a month, which has the same effect on the share price as if those were new short shares entering the market selling borrowed shares.

https://www.finra.org/rules-guidance/notices/...ice-051019