Why is United Spirits falling/rising?

As of 18-Aug, United Spirits Ltd's stock price is currently at Rs 1,310.65, reflecting a decrease of Rs 7.55 or 0.57%. The stock has recently experienced a trend reversal, falling after two consecutive days of gains. It is currently 3.06% away from its 52-week low and is performing in line with its sector. Over the past week, the stock has seen a modest increase of 0.64%, but it has declined by 3.83% over the past month. Despite a high management efficiency indicated by a return on equity (ROE) of 17.23% and a low debt-to-equity ratio of 0.06, the stock is facing pressure due to flat results reported on June 25 and a high valuation reflected in its price-to-book ratio of 11.8, which is above its peers' average.
In the broader market context, the Sensex has outperformed United Spirits in the short term, with a 0.83% increase over the past week compared to the stock's 0.64% gain. Year-to-date, United Spirits has significantly underperformed, with a decline of 19.36% against the Sensex's 4.01% increase. The stock's high institutional holdings at 29.45% suggest that knowledgeable investors are backing the company, yet the stock's premium valuation and the recent flat performance may be causing some investors to reconsider their positions, contributing to the current downward price movement.