Why is Himadri Special falling/rising?

As of 11-Sep, Himadri Speciality Chemical Ltd's stock price is rising, currently at 474.00, reflecting an increase of 5.25 (1.12%). The stock has been gaining for the last two days, with a total return of 5.04% during this period. It has outperformed its sector by 1.26% today and has shown a positive trend with a delivery volume that has increased by 545.63% compared to the 5-day average. Despite a year-to-date decline of 18.97%, the stock has performed well over the last month with a return of 6.18%, and its long-term growth prospects appear strong, evidenced by a significant annual operating profit growth rate of 49.78% and a low Debt to EBITDA ratio of 1.44 times.
In the broader market context, Himadri Speciality Chemical Ltd has outperformed the Sensex over the past week and month, with respective returns of 3.53% and 6.18% compared to the benchmark's 1.03% and 1.17%. However, the stock has underperformed over the past year, with a return of -15.27% against the Sensex's slight gain of 0.03%. While the company has demonstrated strong operational performance with positive results for the last 13 consecutive quarters, concerns about its high valuation, indicated by a Price to Book Value of 6.3 and a ROE of 14.9, may temper investor enthusiasm despite the recent price increase.