Markets News, Nov. 20, 2025: Major Stock Indexes Post Massive Losses as Early Nvidia-Led Rally Fades; Walmart Jumps on Strong Results, Outlook – Investopedia November 20, 2025 by quixnet Markets News, Nov. 20, 2025: Major Stock Indexes Post Massive Losses as Early Nvidia-Led Rally Fades; Walmart Jumps on Strong Results, Outlook Investopediasource