Why is Delta Auto. falling/rising?

As of 16-Sep, Delta Autocorp Ltd is experiencing a price increase, with the current price at 69.60, reflecting a change of 0.6 or 0.87% upward. The stock's performance today is in line with the sector, and it is currently trading higher than its 5-day, 20-day, and 50-day moving averages, although it remains below the 100-day and 200-day moving averages. Notably, there has been a significant decline in investor participation, with delivery volume dropping by 63.19% against the 5-day average. The stock's performance over the past week shows a return of 5.06%, which is notably higher than the Sensex's return of 1.49% for the same period.
In the broader market context, Delta Autocorp's short-term return of 5.06% over the past week significantly outperforms the Sensex, indicating a strong relative performance. However, the stock's one-month return is slightly lagging at 0.14% compared to the Sensex's 2.47%. This suggests that while Delta Autocorp is currently gaining traction, there may be underlying concerns regarding investor participation and liquidity, as indicated by the falling delivery volume. Overall, the stock's recent upward movement can be attributed to its strong short-term performance relative to the benchmark, despite the noted decline in investor engagement.