Why is SER Industries falling/rising?

As of 06-Oct, SER Industries Ltd is experiencing a price increase, currently at 329.95, which reflects a rise of 6.45 or 1.99%. The stock has been on a positive trajectory, gaining for the last 21 days and achieving a remarkable 51.28% return during this period. It has also reached a new 52-week and all-time high today. Despite this strong performance, there is a notable decline in investor participation, with delivery volume dropping by 78.9% against the 5-day average, indicating a potential concern regarding sustained interest in the stock.
In the broader market context, SER Industries has significantly outperformed the Sensex, with a 1-week return of 8.20% compared to the benchmark's 1.77%. Over the past month, the stock has surged by 48.33%, while the Sensex has only increased by 1.34%. This stark contrast highlights the stock's strong momentum relative to the market. However, the falling delivery volume could suggest that while the stock is currently rising, there may be underlying issues that could affect its future performance if investor interest does not rebound.