Why is SPARC falling/rising?

As of 11-Jul, Sun Pharma Advanced Research Company Ltd's stock price is currently at 159.45, reflecting an increase of 3.5, or 2.24%. Today, the stock outperformed its sector by 1.66% and opened with a gain of 2.05%, reaching an intraday high of Rs 163.45. Despite this positive movement, the stock has shown a negative trend over the longer term, with a year-to-date decline of 20.37% and a one-year return of -32.86%. The company faces challenges such as a negative book value, weak long-term growth, and a poor EBIT to interest ratio, which contribute to its overall riskiness and may temper investor enthusiasm despite today's gains.
In the broader market context, the stock's short-term performance contrasts with the benchmark, as it has gained 0.16% over the past week while the Sensex has declined by 1.12%. This indicates a relative strength in the stock compared to the overall market. However, the stock's longer-term performance remains concerning, as it has consistently underperformed against the benchmark over the last three years, highlighting ongoing challenges that may affect investor sentiment moving forward.