Why is Sterlite Tech. falling/rising?

As of 15-Sep, Sterlite Technologies Ltd is currently priced at 121.55, reflecting an increase of 1.85 or 1.55%. The stock has been gaining for the last three days, with a total return of 5.74% during this period. It outperformed its sector by 0.5% today and reached an intraday high of Rs 122.35. Despite this positive movement, the stock has experienced a decline of 9.80% over the past month. However, it has shown strong performance year-to-date with a return of 41.94%, and its profits have risen significantly by 91.9% over the past year. The company has declared positive results for the last two consecutive quarters, which has contributed to its favorable valuation compared to peers.
In the broader market context, while the Sensex has increased by 1.24% over the past week, Sterlite Technologies has only gained 0.62%, indicating a lag in short-term performance relative to the benchmark. The stock has outperformed the market over the past year, generating a return of 23.43% compared to the BSE500's negative return of -3.45%. Despite the recent positive trends, there is a noted decrease in investor participation, with delivery volume falling by 15.88% against the five-day average, which could impact future price movements. Overall, while the stock is currently rising, its recent performance against the benchmark suggests a mixed outlook.