 Shares of ShiftPixy Inc. PIXY, 90.37 skyrocketed 84.1 in very active morning trading Thursday, enough to make them the biggest gainers trading on major U.S. exchanges, after the gig-economy focused workforce management company announces plans to spin off its ShiftPixy Labs business. Trading volume reached 7.1 million shares in the first half hour after the open, already more than triple the stocks previous one-day volume record of 2.2 million shares set Sept. 