Why is Envirotech Sys. falling/rising?

As of 06-Oct, Envirotech Systems Ltd is experiencing a price increase, currently trading at 158.85, which reflects a rise of 8.8 or 5.86%. The stock has shown strong performance today, outperforming its sector by 6.15%. Additionally, it is trading above its 5-day, 20-day, 50-day, 100-day, and 200-day moving averages, indicating a positive trend. Over the past week, the stock has gained 5.27%, and year-to-date, it has risen by 29.62%, significantly outperforming the Sensex, which has only increased by 6.06% during the same period. However, there has been a notable decline in investor participation, with delivery volume dropping by 51.33% compared to the 5-day average, which may raise concerns about sustainability in the stock's upward movement.
In the broader market context, Envirotech's short-term return of 5.27% over the past week is significantly higher than the Sensex's increase of 1.80%, showcasing its strong relative performance. This suggests that while the stock is benefiting from positive momentum and technical indicators, the decline in delivery volume could indicate a potential weakening of investor interest. Overall, the stock's rise is supported by solid performance metrics, but the drop in participation could pose risks if it continues.