# NSE overhauls closing price discovery, changes F&O expiry settlement rules from December 7

- Source: Economic Times
- Published: 2026-11-07T08:31:32+00:00
- Category: Business
- Original: https://economictimes.indiatimes.com/markets/stocks/news/nse-overhauls-closing-price-discovery-changes-fo-expiry-settlement-rules-from-december-7/articleshow/135631400.cms
- Canonical: https://groundlevelnews.com/story/nse-overhauls-closing-price-discovery-changes-f-o-expiry-settlement-ru-829001/

The NSE has announced changes to the Closing Auction Session (CAS) in the equity cash segment and trading rules in the equity derivatives segment, effective December 7, 2026. In two circulars issued on November 6.

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