Why is Naapbooks falling/rising?

As of 19-Sep, Naapbooks Ltd's stock price is currently at Rs 152.50, reflecting a decrease of Rs 1.5, or 0.97%. The stock has shown significant volatility today, opening with a loss of 12.27% and reaching an intraday low of Rs 135, which is a decline of 12.34%. Despite this, the stock has performed well over the past week and month, with returns of 14.75% and 16.41%, respectively. However, it has underperformed its sector today by 0.57%. Additionally, the delivery volume has drastically fallen by 93.98% compared to the 5-day average, indicating a decline in investor participation, which may be contributing to the stock's downward movement.
Broader market context shows that while Naapbooks has had impressive returns over the past year at 143.45% and over three years at 497.83%, it is currently lagging behind the benchmark Sensex in year-to-date performance, with Naapbooks at 1.67% compared to Sensex's 5.74%. The stock's current price is also 4.26% away from its 52-week high, suggesting that while it has been strong historically, recent trading conditions and reduced investor interest may be impacting its performance negatively in the short term.