Amazon (AMZN) & NVIDIA (NVDA) Stock Brief: AI Capex, SMH & XLY vs S&P 500 — Market Snapshot
AMZN vs NVDA tape vs SPY, XLY & SMH, hyperscaler AI capex ($600B–$700B context), Zoox/NHTSA—primary IR, Goldman macro, NVIDIA AI stack links for fact-checking.