The Nifty 50 index broke its four-day losing streak on December 31, closing 0.74 percent higher and moving above the 20-day SMA. Experts note a bullish candle formation, suggesting strengthening momentum and a higher-bottom formation. Key resistance is seen at 26,200, with crucial support at 25,880. The Bank Nifty also showed a positive trend, closing with a long green candle and breaking above its falling resistance trendline.