Why is Simplex Infra falling/rising?

As of 18-Jul, Simplex Infrastructures Ltd is experiencing a price increase, currently at Rs 314.40, reflecting a rise of Rs 18.6 or 6.29%. The stock has shown strong performance today, outperforming its sector by 6.94% and has been on a consecutive gain streak for the last four days, accumulating a total return of 19.79% during this period. Additionally, the stock opened with a gain of 2.77% today and reached an intraday high of Rs 319.9. Over the past year, despite the broader market's negative performance, Simplex has generated impressive returns of 116.83%. However, it is important to note that the company has weak long-term fundamental strength, with a poor average Return on Capital Employed (ROCE) and declining net sales over the past five years, which could pose risks to its future performance.
In the broader market context, Simplex Infrastructures Ltd has significantly outperformed the benchmark index, Sensex, which has seen a decline of 0.90% over the past week. The stock's strong short-term performance, with a 19.34% increase over the last week compared to the benchmark's negative return, highlights its resilience in a challenging market environment. Despite the positive short-term trends, the company's high debt levels and negative operating profits raise concerns about its long-term viability, indicating that while the stock is currently rising, underlying financial issues could impact its sustainability.