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VOL. I · EST. 11.2025 
SatyaDheesh
सत्याधीश
India's Ground Truth Record
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Sebi seeks public comments on CAS, market timings and derivative settlement methodology proposals

GS3Economy · S&T · Environment · Security· Capital markets & SEBI· Prelims·

Market regulation and price discovery mechanisms: a relevant GS3 topic for capital market dynamics.

Why in news

Sebi sought public comments by October 3 on proposals to review the Closing Auction System (CAS), market timings, and derivative settlement methodology.

Background

Sebi proposed changes to the CAS framework and settlement price methodology for index and stock derivatives in September. The CAS is an auction-based process designed to determine closing prices in the equity cash segment.

Facts for Prelims

  • BodySecurities and Exchange Board of India (Sebi) is the regulator seeking public comments on CAS and derivative settlement.
  • FactThe CAS is an auction process used to determine closing prices in the equity cash segment.
  • FactSebi is collaborating with the Reserve Bank of India (RBI) to ease access for foreign portfolio investors.
  • FactSebi introduced an electronic bidding platform for primary issuances to promote exchange-traded systems in the bond market.

Prelims practice question

With reference to the Closing Auction System (CAS) and Sebi's initiatives, consider the following statements:

  1. Sebi is seeking public comments on proposals regarding market timings and derivative settlement methodology.
  2. Sebi introduced an electronic bidding platform for primary issuances to promote exchange-traded systems in the bond market.
  3. The CAS is an auction-based process used to determine closing prices in the equity cash segment.

Which of the statements given above is/are correct?

  1. (a)2 only
  2. (b)3 only
  3. (c)1 and 3 only
  4. (d)1, 2 and 3
Show answer

Answer: (d) 1, 2 and 3 — Statements 1, 2 and 3 are correct.

For Mains

Q. Discuss the significance of the Closing Auction System (CAS) in ensuring price discovery and market integrity in the Indian equity and derivative markets.

Dimensions to cover in your answer

  • Price discovery: Ensuring accurate closing prices through auction mechanisms to minimize arbitrage.
  • Market stability: Addressing concerns over the impact of equity cash segment auctions on derivative settlement prices.
  • Institutional synergy: Coordination between Sebi and RBI to facilitate foreign portfolio investment (FPI) flows.

Keywords: Price Discovery · Derivative Settlement · Capital Market Regulation · Auction Mechanism · Market Integrity

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