Why is Polymac Thermof. falling/rising?

As of 18-Aug, Polymac Thermoformers Ltd's stock price is currently at 19.04, reflecting an increase of 0.87 or 4.79%. The stock has shown strong performance recently, with a one-week return of 26.76% and a one-month return of 46.35%, significantly outperforming the Sensex, which has only gained 0.83% and lost 0.59% over the same periods. Today's performance indicates that the stock has outperformed its sector by 2.01%, and there has been a notable increase in investor participation, with delivery volume rising by 87.5% against the five-day average. However, the stock has not traded on two days out of the last 20, indicating some erratic trading behavior. The stock is currently trading above its 5-day, 20-day, 50-day, and 100-day moving averages, although it remains below the 200-day moving average.
In the broader market context, Polymac's recent gains contrast sharply with its year-to-date performance, which shows a decline of 3.10%, while the Sensex has increased by 4.01%. The stock's long-term performance has been less favorable, with a one-year decline of 46.37% compared to the Sensex's modest gain of 1.04%. Despite these challenges, the current upward movement can be attributed to positive sector action, as the Plastic Products sector has gained by 2.83%. Overall, while the stock has experienced significant short-term gains, its longer-term performance remains a concern, reflecting a mixed outlook in the broader market.