Why is Gabriel India falling/rising?

As of 15-Sep, Gabriel India Ltd's stock price is rising, currently at 1,297.00, reflecting an increase of 77.0 or 6.31%. The stock has recently hit a new 52-week high of Rs.1309 and has outperformed its sector by 5.15%. Over the past week, the stock has gained 6.17%, and it has shown impressive returns of 20.56% over the last month and 172.48% year-to-date. Despite a recent decline in investor participation, with delivery volume decreasing by 57.56% against the 5-day average, the stock remains liquid enough for trading. The company's strong fundamentals, characterized by a healthy return on equity of 20.70% and a low debt-to-equity ratio, contribute positively to its valuation, although it is considered expensive relative to its historical averages.
In the broader market context, Gabriel India has significantly outperformed the Sensex, which has only increased by 1.24% over the past week. The stock's consistent performance over the last three years, generating returns of 146.11% in the past year alone, further emphasizes its strength compared to the benchmark, which has seen a decline of 1.33% over the same period. The high institutional holdings at 21% indicate confidence from more knowledgeable investors, which can positively influence market perception. However, the stock's valuation concerns, highlighted by a high price-to-book ratio and a PEG ratio of 6.4, suggest that while the stock is performing well, it may face scrutiny regarding its sustainability at these levels.