S&P adds Bloom Energy, Dell to indexes; memory stocks surge

Index inclusion is a structural demand driver, so the after-hours moves for Bloom Energy and the memory complex reflect positioning by passive funds, not just sentiment. The sharp divergence—clean energy names added to the S&P 500 while AI hardware names enter the S&P 100—shows how index composition is shifting toward infrastructure themes. The key question is whether the rally in memory and AI hardware persists beyond the mechanical buying, especially given SanDisk's outsized jump. Watch whether index-related flows sustain these levels or fade once the inclusion is fully priced in.