Sandisk (SNDK) and Micron (MU) are selling off sharply together, pulling the Nasdaq down in what appears to be coordinated memory-sector weakness. SNDK is already running negative net margins (-22.3%) on $7.4B in revenue with a deeply negative EPS of -$11.32, while MU is in better shape with 39.8% gross margins and $7.59 EPS on $37.4B revenue growing 48.9% YoY — yet both are being hit, suggesting macro or demand-cycle concerns rather than company-specific issues.

The simultaneous strength in cybersecurity names points to a potential rotation trade: money leaving cyclical memory hardware and moving into perceived-defensive or AI-adjacent security plays. The key thing to watch is whether MU's selloff represents a valuation reset after its massive revenue ramp, or a genuine demand signal that NAND/DRAM pricing is rolling over — the next MU earnings print and any commentary on inventory will be the pivotal data point.