Why is Authum Invest. falling/rising?

As of 19-Sep, Authum Investment & Infrastructure Ltd is currently priced at 3,160.20, reflecting a decrease of 38.8 points or 1.21%. The stock has been underperforming its sector, with a consecutive decline over the last four days, resulting in a total drop of 4.54%. Despite this recent downturn, the stock has shown impressive long-term performance, with a year-to-date return of 83.47% and a one-year return of 91.54%. The company has strong fundamentals, evidenced by a high average Return on Equity (ROE) of 34.81% and significant growth in net sales and operating profit. Additionally, institutional investors have increased their stake, indicating confidence in the company's long-term prospects, although the stock's recent price movement suggests some short-term volatility.
In the broader market context, the stock's short-term performance has slightly outpaced the Sensex, which has risen by 0.88% over the past week compared to the stock's increase of 0.96%. However, the stock's recent decline contrasts with its strong historical performance, as it has consistently outperformed the BSE500 over the last three years. The current liquidity of the stock remains adequate, with a delivery volume significantly above the average, suggesting that while the stock is facing short-term challenges, there is still considerable interest from investors.