Why is Cochin Shipyard falling/rising?

As of 13-Aug, Cochin Shipyard Ltd's stock price is currently at Rs 1,683.35, reflecting an increase of Rs 15.45, or 0.93%. The stock has been gaining for the last three days, with a total return of 2.47% during this period. However, it has experienced a decline of 15.13% over the past month and 23.65% over the past year. Despite these longer-term declines, the company has shown positive performance in its recent quarterly results, with significant growth in net sales and profit before tax, alongside a low debt to equity ratio, which may contribute to investor confidence.
In the broader market context, the stock's short-term performance has been relatively better than the benchmark Sensex, which has remained nearly flat with a change of -0.01% over the past week. While the stock's recent gains are encouraging, the overall trend shows a significant decline over the longer term compared to the benchmark's modest increase of 3.07% year-to-date. Additionally, falling investor participation, as indicated by a decrease in delivery volume, suggests that while the stock is currently rising, there may be underlying concerns that could affect its sustainability in the near future.