Why is Duncan Engg. falling/rising?

As of 13-Oct, Duncan Engineering Ltd is experiencing a significant rise in its stock price, currently at Rs 482.25, reflecting an increase of Rs 49.55 or 11.45%. The stock opened with a notable gain of 9.78% today and reached an intraday high of Rs 494.95, which is a 14.39% increase. Over the past week, the stock has outperformed its sector by 11.92%. Despite a year-to-date decline of 4.50% and a one-year drop of 25.23%, the stock has shown strong performance over longer periods, with a 3-year return of 64.03% and a remarkable 5-year return of 404.97%. However, it is important to note that there has been a significant drop in investor participation, with delivery volume falling by 47.18% against the 5-day average, which could indicate a potential concern regarding sustained interest in the stock.
In the broader market context, Duncan Engineering Ltd's short-term performance has been notably strong compared to the Sensex, which has only increased by 0.66% over the past week. The stock's 1-month return of 10.10% also contrasts sharply with the Sensex's 0.52% increase, highlighting its relative strength in the current market environment. While the stock is trading above its moving averages, suggesting a bullish trend, the decline in delivery volume may raise questions about the sustainability of this upward movement. Overall, the stock's recent rise appears to be driven by short-term momentum and positive trading activity, despite underlying concerns about investor engagement.