Why is Tilaknagar Inds. falling/rising?

As of 18-Sep, Tilaknagar Industries Ltd is experiencing a decline in its stock price, currently at Rs 468.35, reflecting a decrease of 2.5 points or 0.53%. The stock has underperformed its sector by 0.56% today and has been on a consecutive fall for the last two days, accumulating a total decline of 2.47%. Despite touching an intraday high of Rs 481.85 earlier in the day, the stock's recent performance shows a negative trend, with a 1-week return of -0.70% and a 1-month return of -8.92%. While the company has demonstrated strong long-term growth with a 121.05% increase in net profit and consistent positive results over the last five quarters, the high valuation metrics and the pledge of 35% of promoter shares may be contributing to investor caution.
In the broader market context, Tilaknagar's short-term performance contrasts sharply with the benchmark Sensex, which has gained 1.80% over the past week and 2.14% over the past month. This underperformance relative to the benchmark may be influencing investor sentiment negatively. Furthermore, while the stock has shown impressive long-term returns, including a 54.57% increase over the past year, the recent downturn could be exacerbated by the high price-to-book ratio and the increased proportion of pledged shares, which often puts downward pressure on stock prices in a falling market.