India's benchmark stock indices, the Sensex and Nifty, rose Thursday during the fourth day of the cash-auction scheme (CAS) [1], [2].

This activity occurs on a critical expiry day, where market divergence and the implementation of the CAS are testing investor sentiment and liquidity. The movement reflects a broader recovery in risk appetite across the Indian financial sector.

The Sensex showed a significant jump, though reports on the exact magnitude vary. One source said there was a surge of 300 points [1], while another said the index ended 374 points higher [2]. This growth was supported by strong individual performances from major heavyweights, with Reliance Industries Ltd (RIL) and State Bank of India (SBI) each jumping 3% [2].

The Nifty index also maintained a positive trajectory, rising 100 points compared to the previous session [1]. The index held a position between 24,600 [2] and 24,657 [1] throughout the day's trading.

Market analysts said the rally was due to a combination of external and internal factors. Easing tensions in the Middle East provided a favorable global backdrop, while stronger-than-expected earnings from the June quarter bolstered domestic confidence [1], [2]. Additionally, investors reacted to the anticipation surrounding the ongoing CAS auction [1], [2].

New entries to the market also showed strength. Juniper Green shares made a debut with a 9% premium [1]. The divergence between the two benchmark indices continues to be a point of observation for traders as the CAS progresses through its initial phase [1].

Sensex ended 374 points higher

The divergence between the Sensex and Nifty during the cash-auction scheme suggests that specific sector weightings are reacting differently to the new auction mechanics. When coupled with strong June earnings and geopolitical stabilization, the rally indicates that institutional investors are prioritizing fundamental growth over the short-term volatility typically seen on expiry days.