Why is Envair Electrody falling/rising?

As of 16-Sep, Envair Electrodyne Ltd's stock price is currently at Rs 75.75, reflecting an increase of Rs 1.8 or 2.43%. The stock has been on an upward trend, gaining for the last three days and achieving a total return of 3.17% during this period. It outperformed its sector by 2.26% today, with an intraday high of Rs 76.75, although it also experienced a low of Rs 71. The stock's performance over the past week shows a gain of 4.41%, while it has underperformed on a year-to-date basis with a decline of 42.98%. Notably, there has been a significant drop in investor participation, with delivery volume falling by 63.94% against the five-day average, indicating a potential concern for future price stability.
Broader Market Context: In comparison to the benchmark Sensex, which has increased by 1.58% over the past week, Envair Electrodyne's performance has been notably stronger. However, despite the recent gains, the stock's year-to-date performance remains significantly negative, contrasting with the Sensex's positive return of 5.43%. The stock's moving averages indicate that while it is performing better than the short-term averages, it still lags behind longer-term averages, suggesting a mixed outlook. Overall, the recent price increase may be driven by short-term trading activity rather than sustained investor confidence, as indicated by the declining delivery volumes.