Why is Vijaya Diagnost. falling/rising?

As of 18-Sep, Vijaya Diagnostic Centre Ltd's stock price is currently at 1,048.00, reflecting a decrease of 1.9, or 0.18%. The stock has been experiencing a consecutive decline over the last two days, with a total drop of 0.31% during this period. Although the stock has shown strong performance over the past year with a return of 15.88%, it has underperformed relative to the benchmark Sensex in the short term, with a 1-week return of -0.47% compared to the Sensex's increase of 1.80%. Additionally, the stock's delivery volume has significantly decreased by 44.51% against the 5-day average, indicating falling investor participation. Despite these challenges, the company maintains a high management efficiency with a return on equity of 17.31%, a low debt-to-equity ratio of 0.08, and high institutional holdings at 43.63%, which have increased by 0.55% over the previous quarter.
In the broader market context, the stock's recent performance contrasts with the overall positive movement of the Sensex, which has gained 2.14% over the past month and 6.24% year-to-date. This divergence suggests that while the stock has historically performed well, its current decline may be influenced by short-term market dynamics and reduced trading activity. The consistent returns over the last three years indicate a strong underlying business, but the recent price movement reflects a temporary setback in investor sentiment, possibly exacerbated by the broader market's upward trajectory.