Why is Insolation Ener falling/rising?

As of 22-Sep, Insolation Energy Ltd's stock price is rising, currently at 213.85, reflecting an increase of 17.05 or 8.66%. The stock has outperformed its sector by 9.19% today, reaching an intraday high of Rs 219, which represents an increase of 11.28%. Despite this positive movement, the stock has experienced significant volatility, with an intraday volatility of 5.54%. Over the past week, the stock has shown a return of +10.37%, although it has declined by 10.90% over the past month and 42.51% year-to-date. Notably, there has been a decrease in investor participation, with delivery volume falling by 22.92% against the five-day average, indicating a potential concern regarding sustained interest in the stock.
In the broader market context, the Sensex has only increased by 0.46% over the past week, highlighting that Insolation Energy Ltd's recent performance is significantly stronger than the benchmark. However, the stock's longer-term performance remains concerning, with a year-to-date decline of 42.51% compared to the Sensex's gain of 5.15%. This disparity suggests that while the stock is currently experiencing a positive short-term rebound, it has struggled to maintain momentum over a longer period, which may be affecting investor sentiment. Overall, the combination of high volatility, reduced investor participation, and a stark contrast between short-term gains and long-term losses paints a complex picture of the stock's recent movement.