Why is Austin Engg Co falling/rising?

As of 12-Sep, Austin Engineering Company Ltd is currently priced at 165.00, reflecting a decrease of 3.15, or 1.87%. The stock has been underperforming, having fallen consecutively over the last two days, resulting in a total decline of 6.78%. It has also underperformed its sector by 1.64% today. The stock's performance over the past week shows a significant drop of 11.27%, while its year-to-date return stands at -13.14%. Despite a relatively attractive valuation with a Price to Book Value of 0.9 and a Return on Equity of 5.9, the stock's long-term fundamentals are weak, evidenced by a poor growth rate in net sales and a low Return on Capital Employed of 7.57%.
In the broader market context, the stock's recent performance contrasts sharply with the Sensex, which has gained 1.48% over the past week and 4.82% year-to-date. This indicates that while the overall market is experiencing positive momentum, Austin Engineering Company Ltd is struggling significantly, with a one-year return of -30.47% compared to the BSE500's decline of only -3.45%. The stock's liquidity appears sufficient for trading, but the rising investor participation may not be enough to counteract the negative sentiment stemming from its weak long-term growth prospects and recent flat financial results.