In 2025, the Tata Group experienced a significant stock market value erosion, losing over Rs 3 lakh crore, making it the weakest performer among India's top conglomerates. This contrasts with Reliance and Adani, which saw market cap expansions. Key drags for Tata included sharp losses in Tata Motors Passenger Vehicles, impacted by a cyberattack on Jaguar Land Rover, and Tata Consultancy Services. Investors anticipate a turnaround in 2026, focusing on earnings visibility and execution.