Why is Union Bank (I) falling/rising?

As of 22-Aug, Union Bank of India is currently priced at 134.55, reflecting a decrease of 2.2, or 1.61%. The stock has been underperforming, having fallen for the last three days, resulting in a total decline of 2.15% during this period. Although the stock is trading above its 20-day and 200-day moving averages, it is below its 5-day, 50-day, and 100-day moving averages. The stock has shown a year-to-date increase of 11.80%, but its one-month return is down by 5.84%. Positive factors include a strong provisioning practice, healthy long-term growth in net interest income, and a high dividend yield of 3.44%. However, the recent price drop suggests that despite these strengths, investor sentiment may be affected by the stock's recent underperformance relative to the sector.
In the broader market context, Union Bank's short-term performance has lagged behind the benchmark, with a 1-week return of -0.11% compared to the Sensex's gain of +0.88%. This underperformance may be contributing to the stock's decline, as it has not kept pace with the overall market trends. Additionally, while institutional investors have increased their stake, indicating confidence in the company's fundamentals, the recent price movement suggests that market conditions or investor sentiment may be weighing on the stock's performance.