Why is Vista Pharma. falling/rising?

As of 09-Oct, Vista Pharmaceuticals Ltd's stock price is currently at 10.23, reflecting an increase of 0.38 or 3.86%. The stock has been gaining for the last two days, with a total return of 6.9% during this period, and it has outperformed its sector by 2.92%. In terms of longer-term performance, the stock has shown a 3.44% increase over the past week and a 2.20% increase over the past month, although it has underperformed year-to-date and over the past year with declines of 13.16% and 20.64%, respectively. The stock's delivery volume has also seen a significant rise of 136.73% compared to the 5-day average, indicating increased investor participation. There is no information available regarding positive or negative factors that may influence the stock's movement.
Broader market context shows that while Vista Pharmaceuticals has outperformed the Sensex by 2.92% today, its longer-term performance lags behind the benchmark, particularly over the past year where it has declined by 20.64% compared to the Sensex's modest gain of 0.87%. The stock's recent upward movement is notable in the context of its recent struggles, as it has been below its 100-day and 200-day moving averages, suggesting that while there is some short-term momentum, the stock still faces challenges in regaining its previous performance levels relative to the broader market.