You are using meaningless daily data - you don't seem to understand the trade cycle is 3 days plus the trade - you are using the FINRA Daily Reg SHO data which is meaningless.
There aren't any serious investors that use the OTCShortreport to verify shorting. The data from the OTCShortreport uses short volume - it certainly isn't short interest.
This was pretty funny:
I have zero interest in the Reg SHO bi-weekly reports as the data is always aged.
Once again, you haven't taken the trade cycle into account - and that is why the daily data is meaningless.
Short Volume: Intraday volume Market Makers transactions when they temporarily short a stock for a couple of seconds or a minute to fill an order in a timely manner, then cover a couple minutes later (otcshortreport).
When a MM doesn't have the stock in his own inventory, he has to mark the trade "short" even though it is 99.9% of the time covered within seconds with a corresponding trade or from his own customer. Ironically, stocks that have large amounts of toxic death spiral convertible debt usually have the highest daily short volume percentages, because the MM is selling stock all day and only at the end of the trading session to they acquire the stock from their toxic convertible debt holding client. Which means at the end of the day short interest is zero because all the trades marked "short" during the day by FINRA regulation have been covered. Not a single share of short interest remains at the end of the day.