Ann: Mid-season Exploration Update - Last Chance Gold Target, page-23

Pinched from another HC thread. Was curious myself when I saw this go through this morning.

P1XT:
A Put-Through Special Crossing is a type of Block Special Crossing and is used to identify that securities have been transferred from one fund to another on the instruction of a single fund manager. These trades are typically ‘put-through’ the market for a fund manager’s own internal compliance and administration purposes.”