CAS Effect: Pre-Open Session Rules to Change From Today. What Changes for Investors?
- The National Stock Exchange will implement revised rules for its 9:00 am to 9:15 am pre-open session from September 7, 2026, dividing the session into phases with new order-entry restrictions.
- From 9:00 am to 9:05 am, both market and limit orders can be placed or modified, but from 9:05 am to 9:10 am only limit orders are allowed, followed by order matching and opening price determination between 9:10 am and 9:12 am.
- The changes align the pre-open session with the Closing Auction Session , aiming to improve transparency, fairness, price discovery, and market functioning.
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16 Articles
NSE Revises Pre-open Rules from Today; Market Orders Get Priority over Limit Orders
Get latest articles and stories on Business at LatestLY. The National Stock Exchange (NSE) on Monday implemented a revised pre-open session framework, under which market orders will get priority over limit orders during the order matching process, with changes also made to the timelines for order entry and matching. Business News | NSE Revises Pre-open Rules from Today; Market Orders Get Priority over Limit Orders.
A major change has come into effect today in the National Stock Exchange (NSE)'s pre-open session. The session, which runs from 9 a.m. to 9:15 a.m., is now divided into different phases. The new rules will impact investors trading in a variety of securities, including equities, SMEs, InvITs, and REITs.
Stock market new rules from today: NSE to change pre-open market session, here's all you need to know
The new stock market rule isn't limited to futures and options (F&O) traders. It applies to pre-open trading in the cash or equity markets and covers a wide range of securities.
The Economic Times
Times of IndiaCAS effect: Pre-open session rules to change from today. What changes for investors?
Stock Market Rules changes : The change is important for traders who usually place orders closer to the end of the pre-open session. Under the new system, they will no longer be able to put in market orders after 9:05 am and will have to specify a price through a limit order.
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