SEBI Removing CAS from Expiring Options Settlement? | Complete Consultation Paper Explained

SEBI's consultation paper on CAS came out on 12 September. 17 pages, 7 proposals, and the last date to comment is 3 October 2026. This video goes through all seven, one by one. What each proposal says, what it means for you, and where I agree or disagree. And at the end, a full walkthrough of how to actually submit your comments on SEBI's website, step by step. First thing to clear up: CAS is not going anywhere. This paper is about specific aspects of it, not about rolling it back. PROPOSAL 1 & 2 - WHERE WILL YOUR EXPIRY SETTLEMENT COME FROM Right now 100% of your expiry settlement comes from a 20 minute auction. Both proposals are about changing that. Option 1, Blended VWAP: settlement from the last 30 minutes of normal trading plus the 10 minutes of auction. No weight is fixed in advance. Whatever is traded in each window becomes its share. In SEBI's own example the auction came to 10%. Option 2, CTS VWAP: settlement only from the last 30 minutes of normal trading. The auction contributes nothing. Exactly how it worked before 3 August. But Option 2 is not permanent. Four conditions have to be met before moving to blended, including at least one year of CAS and sufficient liquidity developing in it. And para 3.5.5 says plainly that VWAP is not the intended long term framework. So both roads end in the same place. Option 2 is just the longer one. PROPOSAL 3 - THE INDICATIVE INDEX VALUE Most of the reporting got this wrong. Stock level indicative prices stay. Reliance, HDFC, every stock, you will still see them. What goes is the live Nifty or Sensex value built from those 50 numbers. The case for removing it: the 19 August SEBI order showed two entities placing large orders, watching the index move, booking profits on their options, and then cancelling. They could time all of it because they could see the effect live. The case against: that same number is what brings balancing participants into the window. They see the price has moved away from where it should be, and they come in on the other side. Take it away and the manipulator gets slightly slowed while the balancer disappears completely. Para 4.4 says exchanges will show an expected settlement price instead. So something replaces it. And this proposal only matters if something is still being decided in that window. If Option 2 is picked, settlement is already locked before the auction starts, and the whole question loses its point. These three proposals cannot be read separately. PROPOSAL 4 & 5 - MARKET TIMINGS Two questions, two options. Option A: all stocks trade till 3:30 like before CAS. One minute transition. CAS from 3:31 to 3:40. Derivatives till 3:45. Option B: F&O stocks till 3:15 as now. CAS from 3:15 to 3:25. Derivatives close at 3:30. Option A gives back the 15 minutes that were cut when CAS came in. If news breaks at 3:20, you can trade it. Right now you cannot. Option B ends everything at 3:30. Market closed means closed. PROPOSAL 6 - NO CANCELLATION BEYOND 1% The 3% price band stays. What changes is cancellation. Orders within 1% of the reference price: cancel or modify as before. Orders between 1% and 3%: cannot be cancelled. You can improve the price, but you cannot pull the order. This goes straight at what the 19 August order described. Place large orders far from reference, let the index move, take the profit, cancel. Under this rule that sequence does not work. PROPOSAL 7 - ICEBERG ORDERS Unexecuted iceberg orders currently do not go into the auction at all. They get cancelled. The proposal takes them into CAS as normal limit orders with the full quantity disclosed. Small on its own. But read it with Proposal 6 and something emerges. One brings money into the auction, the other stops it leaving at the last second. In 17 pages, these are the only two proposals that touch on the auction's actual problem, which is that there is not enough money in it. HOW TO SUBMIT Your Feedback For CAS to SEBI goes here: https://www.sebi.gov.in/sebiweb/publi... There are 5 levels from strongly agree to strongly disagree for each proposal. There is also a Google form below. Fill that as well, and we will try to get the collated responses in front of the right people at SEBI. Google form: https://forms.gle/7U4qGVdKQvtWMmkb9 Deadline is 3 October 2026. Fill both the documents. Chapters: 00:00 Introduction 01:19 Proposal 1 & 2: Settlement Methodology 06:30 Proposal 3: Indicative Index Value 10:37 Proposal 4 & 5: Market Timings 14:17 Proposal 6: Restricting Order Cancellation During CAS 15:33 Proposal 7: Iceberg Orders 16:38 Submit Your Comments to SEBI & Google Form