📝 Executive Summary
Microsoft shares plunged, wiping $570 billion off its market value and setting the stock on track for its worst monthly performance since the bursting of the dotcom bubble in 2000. The selloff, driven by a sharp rotation out of mega-cap tech, has battered the tech giant and weighed heavily on major U.S. equity indices. The Nasdaq-100 and S&P 500 have sold off in sympathy, with the rout raising questions about the sustainability of mega-cap leadership.