Why is APL Apollo Tubes falling/rising?

As of 05-Sep, APL Apollo Tubes Ltd is currently priced at 1,666.50, reflecting a decrease of 3.25, or 0.19%. The stock has underperformed its sector by 0.55% today and has been on a downward trend for the last two days, with a total decline of 0.46% during this period. Despite this recent decline, the stock has shown strong performance over the longer term, with a 1-week return of 4.03%, a 1-month return of 4.00%, and a year-to-date return of 5.81%. The company has demonstrated solid fundamentals, including a high Return on Capital Employed (ROCE) of 26.81% and significant growth in net sales and operating profit. However, the recent fall in delivery volume by 46.39% against the 5-day average suggests a decrease in investor participation, which may be contributing to the stock's current price movement.
In the broader market context, while the stock has outperformed the benchmark Sensex over various periods, including a 15.70% return over the past year compared to the benchmark's decline of 1.81%, the recent short-term performance indicates a divergence from this trend. The stock's higher moving averages suggest it is still fundamentally strong, but the recent drop in investor participation and consecutive price falls may be causing some caution among investors. Additionally, the high institutional holdings at 49.88% indicate confidence from larger investors, which could stabilize the stock in the long run despite the current fluctuations.