Why is Epack Durable falling/rising?

As of 09-Sep, Epack Durable Ltd's stock price is currently at Rs 391.90, reflecting a decrease of Rs 11.85 or 2.93%. Today's performance indicates that the stock has underperformed its sector by 2.79%, following a trend reversal after two consecutive days of gains. The stock reached an intraday low of Rs 390.75, and trading volume has decreased significantly, with delivery volume falling by 33.6% compared to the 5-day average. Despite a strong long-term growth outlook, with net sales increasing at an annual rate of 33.30%, the stock has seen a year-to-date decline of 28.84%, although it has generated a substantial 39.57% return over the past year.
Broader market context shows that while the Sensex has gained 1.18% over the past week, Epack Durable's stock has only increased by 1.01%, indicating a lag in performance. The stock's recent decline contrasts with the broader market's positive movement, as the benchmark has outperformed the stock in both the short term and year-to-date. This underperformance, coupled with falling investor participation and liquidity concerns, suggests that the stock is facing challenges despite its previous strong results and market-beating performance over the last year.