The Indian equity markets experienced notable volatility during the February 25, 2026, session. While the **Nifty 50** managed to reclaim the **25,550** level with an intraday gain of **0.49%**, and the **Sensex** advanced over **230 points** to **82,455**, the session was defined by sharp price movements in specific mid-cap and sector-heavy stocks. High-Volume Gains and Sector Triggers **Concord Biotech** dominated market attention as its shares surged **14.39%** to close at **1,231**. This movement was supported by intense trading activity, reflecting strong investor interest in the biopharma firm's specialized fermentation-based API portfolio. **Schaeffler India** recorded a significant rally, climbing as much as **6.12%** to an intraday high of **4,334.70**. The surge followed the company's Q4 financial report, which highlighted a **32%** year-on-year increase in standalone net profit, reaching **327.96 crore**. Investors reacted positively to the firm's double-digit revenue growth and plans to increase capital expenditure in 2026. **Lloyds Metals and Energy** also saw positive momentum, trading near **1,251.80**. The company recently announced plans to increase capacity at its pellet plants in Konsari and reported a consolidated net profit of **10.47 billion** for the December quarter, underscoring strong operational performance in the metal sector. Major Decliners and Regulatory Headwinds **Waaree Energies** faced a severe sell-off, with shares plummeting as much as **15%** to settle near **2,708**. The sharp decline was triggered by the U.S. Department of Commerce's decision to impose preliminary countervailing duties of **126%** on solar imports from India. This regulatory move has raised concerns regarding the profitability of Indian solar module exporters. **Indian Railway Finance Corporation (IRFC)** shares fell by **4.46%** to close at **105**. The downward pressure came as the Indian government launched an Offer for Sale (OFS) to divest a **4%** stake in the entity. The floor price for the OFS was set at **104 per share**, aiming to raise approximately **5,430 crore**. **State Bank of India (SBI)** also traded in the red, declining nearly **1%** to **1,216.10**. Despite hitting a 52-week high of **1,234.70** in the previous session, the stock faced profit-booking as the broader banking index saw mixed results. SBI continues to maintain a dominant market cap of over **11 lakh crore** while focusing on a goal to increase its green advances to **10%** by 2030.