yesterday's reg sho data was easy since there was only one trade ending in 15 (clearly yours) that was marked short (that is the data i've shown in green)
That's all fine and good in the land of rose colored glasses but people have posted in this very *venue* that individual trades are sometimes bundled into much larger lots that are shown on the tape. Is it not possible that the true RegSho trades cannot accurately be pinpointed from the tape or is there some *magical* keycode for interpreting those as well as resets/compression/share swaps/wash trades/etc.?