SanDisk's post-Investor Day rally drew additional Wall Street backing after the company outlined aggressive long-term growth and margin targets, said it would return 100% of free cash flow remaining after business investment to shareholders, and detailed a $14 billion buyback under its $15.5 billion authorization. JPMorgan upgraded the stock to Overweight with a $2,250 target, Bernstein raised its target to $3,000, Evercore ISI kept an Outperform rating with a $2,800 target, RBC Capital lifted its target to $1,600, and Wedbush reiterated Outperform on Aug. 15 with a $2,000 target, saying its 2028 estimates likely understate SanDisk's earnings power and that heavy buybacks and a longer trading cycle support a valuation premium. The update has intensified scrutiny of SK Hynix's own capital-return plans as investors assess whether SanDisk's contract-based NAND strategy and AI-memory push can reduce sector cyclicality.