Why is Mercury Labs falling/rising?

As of 11-Jul, Mercury Laboratories Ltd's stock price is currently at 891.15, reflecting an increase of 40.15, or 4.72%. The stock has shown a positive performance today, outperforming its sector by 4.14% and opening with a gain of 4.45%. It reached an intraday high of Rs 893.9, indicating strong short-term momentum. However, despite this rise, the stock has underperformed over the past year, with a return of -10.89%, while its operating profits have declined significantly. The company has weak long-term fundamentals, evidenced by a -0.76% CAGR growth in operating profits over the last five years and a substantial drop in profit after tax. Additionally, the stock is trading at a premium compared to its peers, which may deter some investors.
In the broader market context, the stock's short-term performance contrasts sharply with the benchmark, as it has gained 7.50% over the past month while the Sensex has remained nearly flat with a change of -0.02%. However, the stock's year-to-date performance is negative at -0.54%, compared to the Sensex's positive return of 5.58%. This divergence highlights the stock's volatility and the challenges it faces despite recent gains. The falling investor participation, as indicated by a significant drop in delivery volume, suggests that while the stock may be experiencing a temporary rise, there are underlying concerns that could impact its sustainability in the long run.