Why is SEL Mfg. Co falling/rising?

As of 04-Sep, SEL Manufacturing Company Ltd is experiencing a decline in its stock price, currently at 30.29, down by 0.42 or 1.37%. The stock has underperformed its sector by 0.3% today, and while it has shown a slight increase of 0.97% over the past week, it has significantly underperformed over the longer term, with a 3.69% decrease over the past month and a staggering 32.88% drop year-to-date. The stock's performance is further hindered by a negative book value and a weak long-term fundamental strength, as evidenced by a high debt-to-equity ratio of 3.05 times and negative results over the last five consecutive quarters. Additionally, the delivery volume has decreased by 39.85% against the five-day average, indicating falling investor participation. Broader market context shows that while the Sensex has gained 0.80% over the past week, SEL Manufacturing's performance is not keeping pace, reflecting a consistent underperformance against the benchmark over the last three years. The stock's year-over-year return of -49.52% starkly contrasts with the Sensex's modest decline of 1.98%, highlighting the company's struggles in a generally improving market. The presence of pledged promoter shares, which account for 36% of total shares, adds further downward pressure in a falling market, contributing to the stock's overall negative sentiment and performance.