To sum up, these are multi-leg trades where the MM sells without matching sold shares to a buy immediately. They are required to register each sale as "long", "short", or "short exempt". The daily numbers are those registered as "short" but are for the most part reconciled the same day.
The RegSHO bi-weekly reports are the numbers that we need to pay attention to. They have the most accurate information. Here is the link:
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