Why is Yash Optics falling/rising?

As of 09-Jun, Yash Optics & Lens Ltd is experiencing a price increase, currently at 83.90, reflecting a rise of 4.65 or 5.87%. The stock has shown a positive performance today, outperforming its sector by 4.16%. It is trading above its 5-day, 20-day, 50-day, and 100-day moving averages, although it remains below its 200-day moving average. Despite this upward movement, there has been a notable decline in investor participation, with delivery volume dropping by 47.76% compared to the 5-day average. Over the past week, the stock has gained 3.90%, while it has increased by 7.77% over the past month. However, it is down 3.56% year-to-date and 9.64% over the past year, indicating a mixed performance over longer periods.
In the broader market context, Yash Optics' recent short-term return of 3.90% over the past week significantly outpaces the Sensex's gain of 1.56% during the same period. This suggests that while the stock is currently rising, it has struggled to maintain momentum over the longer term, as indicated by its negative year-to-date and one-year returns compared to the Sensex's positive performance. The liquidity of the stock remains adequate for trading, as it is based on 2% of the 5-day average traded value, which supports its current upward movement despite the decline in investor participation.