Short sales during the trading day are sales that
Post# of 72440
So if a certain percentage of sales were "short sales" on a given day,it means that MM's had to sell shares they didn't have to fill the demand.Then they had to "find" shares to make their "obligation" complete by the end of day.
that MM's had
The short sales reported at the end of day only reflects the "difficulty"that MM's had to fulfill trades without using "air shares".
Kelt