"Click-Bait" otcshortreport intentionally misrepresents MM intra-day "Volume" as short "Interest". Meaningless numbers, and completely unrelated to "shorts" as generally understood to be borrowed & sold shares, needing to be bought back.
If you're going to use that site (not recommended) , instead of getting numbers directly from FINRA, make sure you're looking at short "Interest" to get open short positions.