Tech giant Block Inc (NYSE:XYZ) is charging 9% higher to trade at $79.21 at last glance, after news broke late last week it will be joining the S&P 500 Index (SPX) before the bell on Wednesday. Block stock will replace Hess (HES), after the company was purchased by Chevron (CVX) for $53 billionXYZ is now on track for a fourth-straight daily win, aiding in its attempt to erase some of its 7% year-to-date deficit. Should today's gains hold, the equity will log its best daily pop since May 12, though potential ...