Why is Span Divergent falling/rising?

As of 10-Jul, Span Divergent Ltd's stock price is currently at Rs 22.56, reflecting an increase of Rs 1.06 or 4.93%. Today's price summary indicates that the stock opened with a gain of 4.98% and reached an intraday high of Rs 22.57, outperforming its sector by 5.22%. However, the stock has also experienced erratic trading, not trading on one day out of the last 20 days, and has shown a significant drop in delivery volume, falling by 88.5% against the 5-day average. Despite this short-term price increase, the company faces serious long-term challenges, including a negative book value, weak fundamental strength, and a high debt-to-equity ratio, which contribute to its overall poor performance with a year-to-date return of -35.23%.
In the broader market context, Span Divergent Ltd's short-term return of +15.51% over the past week contrasts sharply with the Sensex, which has remained nearly flat at -0.06%. However, the stock's long-term performance has been disappointing, with a -37.33% return over the past year, significantly underperforming the benchmark indices. This combination of short-term gains amidst a backdrop of long-term struggles suggests that while there may be temporary optimism reflected in today's trading, the underlying fundamentals remain weak, indicating potential risks for investors.