Stock Market Today: S&P 500 & Nasdaq Surge in Volatility
The stock market today saw a dramatic shift in sentiment on March 3, 2026, as volatility surged across the S&P 500 and Nasdaq. From MongoDB’s stunning 21% plunge to Bitcoin’s continued decline, investors faced a turbulent session shaped by rising geopolitical tensions in the Middle East, mixed retail earnings from Target and Best Buy, and a landmark streaming merger from Paramount. This comprehensive analysis breaks down the key movers, expert insights, and actionable strategies to help investors navigate an increasingly uncertain market environment heading into the second quarter of 2026.