Why is Simplex Castings falling/rising?

As of 24-Sep, Simplex Castings Ltd is experiencing a price increase, currently at Rs 401.00, which reflects a rise of Rs 16.25 or 4.22%. The stock has shown strong performance today, outperforming its sector by 5.98% and reaching an intraday high of Rs 403.95, marking a 4.99% increase. Additionally, the stock has demonstrated impressive returns over various periods, including a year-to-date increase of 27.28% and a remarkable 970.76% rise over the past three years. However, there has been a notable decline in investor participation, with delivery volume dropping by 83.33% compared to the five-day average, which could indicate a potential concern for future trading activity.
In the broader market context, Simplex Castings has outperformed the Sensex, which has seen a decline of 1.18% over the past week while the stock itself has risen by 4.16%. This trend of outperformance is consistent over the past month and year, where the stock has also surpassed the benchmark's performance. The liquidity of the stock remains adequate for trading, as it is based on 2% of the five-day average traded value. Overall, while the stock is currently rising, the significant drop in delivery volume may warrant attention as it could affect future price movements.