What is the NSE Pre-Open Market Session?

The NSE pre-open session runs from 9:00 AM to 9:08 AM IST, Monday to Friday. During this session, orders are collected and matched to determine the opening price (Indicative Equilibrium Price or IEP) for each stock. Normal trading begins at 9:15 AM.

What is IEP in pre-open market?

IEP stands for Indicative Equilibrium Price. It is the expected opening price of a stock, calculated during the pre-open session based on the buy and sell orders placed. The final IEP at 9:08 AM becomes the opening price for normal market trading.

Why is pre-open market data important?

Pre-open data helps traders anticipate the market opening direction. By comparing IEP with the previous close, you can gauge whether a stock or index will open with a gap up, gap down, or flat — helping plan intraday strategies before the market opens.

NSE Pre-Open Market – Live

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NSE Pre-Open Market Session – What It Means

NSE's pre-open session runs from 9:00 AM to 9:08 AM IST. During this window, orders are collected and the Indicative Equilibrium Price (IEP) is computed — the price at which maximum shares can be traded. This gives traders a preview of the likely opening price. The pre-open data is most relevant during the 9:00–9:15 AM window.

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