New Delhi, September 6 (Daily Kiran) : Starting September 7, 2026, significant changes will take effect in the Indian stock market, affecting both investors and traders. The National Stock Exchange (NSE) is revising rules related to the pre-open session, ETF pricing processes, and price bands. These modifications aim to enhance pricing transparency, improve coordination between cash and derivatives markets, and streamline trading procedures.
Previously, the pre-open session operated from 9:00 AM to 9:15 AM. The new structure will allow investors to place market and limit orders from 9:00 AM to 9:05 AM, during which they can also modify or cancel orders. After 9:05 AM, market orders will no longer be accepted, though limit orders can still be placed or adjusted. From 9:08 AM to 9:10 AM, order entry may be randomly closed at any time. The matching of orders will occur from 9:10 AM to 9:12 AM, determining the initial price of shares. In this new framework, market orders will be prioritized over limit orders during the pre-open session.
This change aligns with the recently implemented Closing Auction Session (CAS) by SEBI, which aims to create a more structured market environment. The new rules will not only apply to futures and options (F&O) stocks but will also impact various securities listed in the cash or equity market.
The adjustments will affect not just large-cap companies but also small and mid-cap stocks. This means that all investors, regardless of the size of their investments, will feel the impact of these changes.
The NSE’s goal is to align the initial price determination process with the CAS recently adopted in the equity cash market. Under this system, buy and sell orders are pooled together, allowing for more transparent and accurate pricing.
Experts believe that these changes will help manage sudden volatility at market opening, leading to a more balanced trading environment.
Another significant adjustment on September 7 will include gold and silver ETFs in the pre-open session. This decision responds to the fluctuations in international gold and silver prices, which often occur while the Indian market is closed. As a result, investors frequently see substantial price differences at market opening.
The new rules are expected to provide investors with better price discovery in line with international rates, allowing for a more accurate reflection of ETFs’ market values.
Another important change pertains to price band determination for ETFs. Currently, many ETFs use the two-day-old NAV (T-2 NAV) to set daily price limits. This will now shift.
Under the new guidelines, the volume-weighted average price (VWAP) from the last 30 minutes of trading on the previous trading day will be used. If no trades occurred during that time, the last traded price of the day will be used. If there were no trades at all, the last closing NAV will apply.
Market experts believe this will keep the price limits for ETFs closer to their actual market values, enhancing pricing effectiveness.
Investors must exercise caution with the new rules, particularly those investing in gold and silver ETFs. They should not rely solely on displayed prices but also monitor the Indicative NAV (iNAV) and the actual market conditions.
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