Sandisk (SNDK) Stock Today: S&P 500 Newcomer Slides After 500% AI Rally – Outlook and Forecast for 2025–2026
Sandisk shares fell 6–7% to around $191 on December 3, 2025, making it one of the S&P 500’s biggest decliners after a 400% rally since its February spin-off from Western Digital. The stock is down about 14% this week and trades roughly one-third below its November 12 all-time high, but remains among the year’s top-performing large-cap tech names.