Nasdaq Dips 3%; Chicago Fed National Activity Index Rises In December

1. U.S. stocks fell sharply, with S&P 500 down 1.74%. Market sentiment remains bearish. 2. Consumer staples increased by 1.4%, contrasting with tech sector's 4.5% decline. 3. Chicago Fed National Activity Index improved to 0.15, its best reading in seven months. 4. Nasdaq dropped over 600 points, indicating widespread market weakness. 5. Aurora Mobile Limited shares surged 207% on GPT integration, improving sector outlook.