CAS chaos: How did Sensex crash 2,000 points in 6 minutes while Nifty stayed stable on monthly expiry?Sensex plunged over 2,000 points during Thursday’s closing auction session before recovering some losses, while Nifty remained comparativel...
28 Aug, 2026, 03.46 PM IST
4,000% options surge in 15 mins highlights India’s wild closing auction systemIndia’s new closing-auction system is triggering extreme volatility in the options market, with prices swinging sharply within minutes. Dur...
28 Aug, 2026, 11.24 AM IST
Sebi chief Tuhin Kanta Pandey clarifies on CAS changes after big Sensex expiry-day swingSebi Chairman Tuhin Kanta Pandey said the regulator has no plans to change the Closing Auction Session despite sharp expiry-day swings. Seb...
27 Aug, 2026, 07.56 PM IST
Monthly Expiry shock: Did CAS fail its biggest test after Sensex loses 2,000 points in 6 minutes?The Sensex witnessed a sharp late-session swing of over 2,000 points in six minutes on Thursday, raising fresh questions about the Closing ...
27 Aug, 2026, 05.04 PM IST
Options turnover sinks at Dalal Street's top exchange preparing for IPOIndia's stock exchange has seen options turnover plummet to its lowest in a year, a direct consequence of newly enforced trading regulation...
26 Aug, 2026, 12.24 PM IST
Closing Auction System braces for its first monthly expiry testIndia’s derivatives market is set for its first monthly expiry under the new auction-based closing price system, marking a crucial test for...
25 Aug, 2026, 08.47 AM IST
CAS chaos triggers liquidity spiral: Nuvama says higher participation needed to break cycleBSE’s new Closing Auction Session has faced weak participation, with Nuvama reporting sharp declines in option premium volumes and contract...
22 Aug, 2026, 02.58 PM IST
Rs 30,000 cr loss in 3 months: Why BSE stock is failing investors and should you buy now?The BSE stock has witnessed a pronounced decrease in market value recently, attributed to the introduction of new auction regulations and d...
21 Aug, 2026, 09.58 AM IST
D-Street’s CAS turmoil clouds BSE’s growth outlookBSE shares have experienced a significant downturn this month following the launch of a new closing auction session. Since this change on A...
20 Aug, 2026, 11.54 AM IST
Getting used to CAS for auction deliverySebi's new closing auction session will determine stock prices. This new method improves price discovery and reduces manipulation risks. Op...
18 Aug, 2026, 11.01 PM IST
BSE shares drop 3% after second downgrade in two days. Nuvama lists CAS among 3 key headwindsBSE shares extended their losing streak after Nuvama downgraded the stock to Hold and cut its target price, citing three key concerns: the ...
18 Aug, 2026, 01.06 PM IST
Sebi chair rules out CAS rollback; assures commitment to resolving ongoing issuesThe Securities and Exchange Board of India is set to assess the implications of the newly implemented Closing Auction Session. Chairman Tuh...
18 Aug, 2026, 06.11 AM IST
Closing auction gets off to a rocky start, but India’s markets will adaptIndia's stock markets are adopting a closing auction session, impacting passive fund investing. Initial trading days showed price divergenc...
17 Aug, 2026, 11.55 PM IST
India’s closing auction needs funds to show upIndia introduced a closing auction session mechanism for market reform. This new system requires broad participation to achieve its intende...
17 Aug, 2026, 11.17 PM IST
Sebi chief Tuhin Kanta Pandey says CAS here to stay, will study concerns over rolloutSebi Chairman Tuhin Kanta Pandey says the closing auction session (CAS) is here to stay, even as the regulator reviews concerns over its im...
17 Aug, 2026, 12.32 PM IST
CAS is here to stay: SEBI confident that Closing Auction Session will improve as participation rises, despite market-wide confusionThe Securities and Exchange Board of India (Sebi) remains steadfast in its support for the newly implemented closing auction system. Despit...
10 Aug, 2026, 06.30 AM IST
Why stock market's CAS Day 1 hiccups will fade within a few sessionsIndia's new Closing Auction Session (CAS) witnessed expected Day 1 adjustments, including concentrated liquidity and temporary futures-cash...
04 Aug, 2026, 01.17 PM IST