Why is Ruby Mills falling/rising?

As of 30-Jul, Ruby Mills Ltd. is experiencing a price increase, currently at Rs 251.50, reflecting a rise of Rs 20.0 or 8.64%. Today's price summary indicates that the stock has outperformed its sector by 8.65% and has reversed a trend of three consecutive days of decline. The stock reached an intraday high of Rs 268.5, marking a significant increase of 15.98%. Over the past week, Ruby Mills has shown a return of +5.56%, contrasting with the Sensex's decline of -1.50%. However, despite this short-term gain, the company faces challenges, including weak long-term fundamentals characterized by a low Return on Capital Employed (ROCE) of 5.15% and stagnant growth in net sales and operating profit over the last five years. Additionally, domestic mutual funds hold no stake in the company, which may indicate a lack of confidence in its valuation or business prospects.
In the broader market context, Ruby Mills' recent performance stands out against the backdrop of the Sensex, which has declined by -1.50% over the past week. While the stock has shown positive short-term returns, its year-to-date performance remains negative at -2.54%, contrasting with the Sensex's positive return of +4.28%. This divergence highlights the stock's volatility and potential investor concerns regarding its long-term growth and profitability, despite the recent uptick in price.