Zydus Wellness Ltd experienced a significant surge in trading volume on BSE on December 31, 2025, with 1.42 lakh shares traded by 10:46 IST, a 23.71 times increase over its two-week average. The stock price also rose by 6.92 to Rs. 453.20. Several other companies, including Swan Corp Ltd, Blue Star Ltd, Deepak Fertilisers Petrochemicals Corp Ltd, and JSW Steel Ltd, also saw notable volume increases and stock price gains on the same day.