Why is G S Auto Intl. falling/rising?

As of 16-Sep, G S Auto International Ltd is experiencing a decline in its stock price, currently at 34.05, which reflects a decrease of 0.95 or 2.71%. The stock has underperformed its sector today by 3.68%, and its delivery volume has fallen significantly by 39.77% against the 5-day average, indicating reduced investor participation. Over the past week, the stock has decreased by 2.41%, while it has shown a modest increase of 6.77% over the past month. Despite a strong long-term performance with a 3-year return of 108.26% and a 5-year return of 673.86%, the stock has faced challenges, including a year-to-date decline of 26.47% and a negative return of 26.14% over the past year. The company has a high Debt to EBITDA ratio of 5.18 times and 100% of promoter shares are pledged, which adds downward pressure on the stock price.
In the broader market context, the Sensex has increased by 1.58% over the past week and 2.21% over the past month, contrasting with G S Auto's recent declines. The stock's poor performance relative to the benchmark indicates a lack of confidence among investors, especially given its weak long-term fundamental strength and the high proportion of pledged shares. While the company's profits have risen by 63% over the past year, the overall market sentiment remains negative, contributing to the stock's underperformance compared to the broader market, which has only seen a slight decline of 0.73% over the past year.