SanDisk is trading 3.8% lower at $10.64, with sector sentiment appearing to drive the decline rather than a company-specific catalyst. - Toshiba’s planned hard-drive capacity expansion and muted response to Micron’s results pressured storage and memory stocks, chiefly HDD makers; SanDisk was caught in the downdraft. - No SanDisk-specific announcement explaining the October 5 move was identified; broader markets were mixed. Bullish AI-demand analysis through 2028 does not clearly explain the drop.