Why is Natl. Aluminium falling/rising?

As of 18-Sep, National Aluminium Company Ltd's stock price is currently at 214.00, reflecting an increase of 0.9, or 0.42%. The stock has shown a trend reversal by gaining after three consecutive days of decline. It has outperformed its sector by 0.37% today, with a delivery volume that has risen slightly against the five-day average. Over the past month, the stock has appreciated by 13.62%, although it has underperformed the Sensex in the past week with a decline of 0.16%. The company has demonstrated strong financial health, with a high return on equity (ROE) of 17.57%, a low debt-to-equity ratio, and consistent positive results over the last seven quarters, contributing to its attractive valuation and high dividend yield of 4.69%.
Broader market context indicates that while National Aluminium has shown strong long-term performance, it has lagged behind the Sensex in the short term, particularly over the past week. The Sensex has increased by 1.80% in that same period. However, the stock's robust performance over the last three years, with a return of 177.74%, highlights its resilience and potential for growth, especially given its significant institutional holdings at 30.82%. This suggests that while the stock may face short-term fluctuations, its long-term fundamentals remain strong, supporting investor confidence.