Why is Polysil Irrigati falling/rising?

As of 29-September, Polysil Irrigation Systems Ltd is experiencing a price increase, currently at 250.40, which reflects a rise of 4.75 or 1.93%. The stock has shown strong performance recently, with a weekly return of +10.28% and a remarkable monthly return of +102.59%. However, despite this positive movement, the stock's delivery volume has significantly decreased, falling by -99.08% against the 5-day average, indicating a decline in investor participation. The stock is currently trading above its 5-day moving average but below its longer-term moving averages, suggesting mixed signals regarding its momentum.
In the broader market context, Polysil's performance stands in stark contrast to the Sensex, which has declined by -2.25% over the past week. Year-to-date, Polysil has surged by +803.97%, while the Sensex has only increased by +4.19%. This substantial outperformance highlights the stock's strength relative to the market. However, the significant drop in delivery volume could raise concerns about sustainability in the stock's upward trajectory, despite its impressive returns compared to the benchmark.