NEW YORK, July 19, 2026, 11:07 EDT U.S. markets were closed Sunday. SanDisk ended Friday at $1,354.82, down 29.3% across five sessions. Preliminary estimate: holding Friday’s share count constant, the fall erased about $88 billion. (StockAnalysis) The decline left shares 42% below their June 25 closing peak. Even so, the stock remained up 471% during…