Why is SPML Infra falling/rising?

As of 15-Sep, SPML Infra Ltd is experiencing a decline in its stock price, currently at Rs 278.65, reflecting a decrease of Rs 6.25 or 2.19%. Today's price summary indicates that the stock underperformed its sector by 3.12%, with an intraday low of Rs 277.35. The stock has shown a negative return of 2.35% over the past week and a slight decline of 0.13% over the past month, although it has generated a positive return of 8.85% year-to-date and 11.22% over the past year. Despite consistent returns over the last three years, the company faces challenges such as high debt levels and weak long-term fundamental strength, with net sales and operating profit declining over the past five years. Additionally, a significant portion of promoter shares is pledged, which can exert downward pressure on the stock price in a falling market.
In the broader market context, the Sensex has shown a positive return of 1.24% over the past week and 1.47% over the past month, indicating that SPML Infra's recent performance is lagging behind the benchmark. The company's high debt-to-equity ratio and low return on equity suggest underlying financial weaknesses that may be contributing to investor concerns, leading to decreased participation in trading, as evidenced by a 55.13% drop in delivery volume compared to the five-day average. Overall, while SPML Infra has delivered strong returns over the longer term, current market conditions and company-specific challenges are driving its stock price lower.