US stocks close higher; SKHY jumps 13.32%, SanDisk gains 7.39%

The leadership here is concentrated in memory and semiconductor names, with SKHY's double-digit move far outpacing the broader indexes — a sign that the day's gains were less about macro risk appetite than about specific hardware exposure. The divergence between chip-linked names and a brokerage platform like Robinhood slipping suggests rotation within the tech complex rather than a uniform bid. Whether this memory-led strength holds, or proves a single-session spike, is the open question worth tracking.