Why is SER Industries falling/rising?

As of 18-Sep, SER Industries Ltd is experiencing a price increase, currently at Rs. 265.65, which reflects a rise of 5.2 or 2.0%. The stock has been on a positive trajectory, gaining for the last 21 days and achieving a remarkable 51.28% return over the past month. Today, it reached a new 52-week and all-time high of Rs. 265.65, opening with a 2% gain. Despite this upward movement, there has been a notable decline in investor participation, with delivery volume falling by 84.57% compared to the 5-day average, indicating a potential concern regarding sustained interest in the stock.
Broader Market Context: In comparison to the benchmark Sensex, which has risen by 1.80% over the past week, SER Industries has significantly outperformed with a 10.39% increase in the same period. This strong performance highlights the stock's relative strength in the market, especially given its substantial gains over the last month compared to the Sensex's 2.14% rise. The stock's consistent trading above various moving averages further supports its bullish trend, although the drop in delivery volume may suggest caution among investors regarding future price sustainability.