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Stock market closing time changes from 7 December 2026: SEBI's new closing auction timings

From 7 December 2026, normal trading in F&O stocks runs until 3:30 pm again, the closing auction moves to 3:30 to 3:40 pm and F&O trades until 3:45 pm.

SEBI has changed how the stock market closes each day. The new timings start on 7 December 2026, under a SEBI circular dated 15 October 2026. If you only invest through SIPs or hold shares for the long term, very little changes for you. If you trade near the close or trade futures and options, read on.

What the closing auction is

Since 3 August 2026, the closing price of shares in the futures and options (F&O) list has been set by a short auction at the end of the day, called the closing auction session. Buyers and sellers put in orders, and the exchange finds one price that matches the most shares. Shares outside the F&O list kept trading normally until 3:30 pm, as reported by Outlook Business.

Today, normal trading in F&O shares stops at 3:15 pm, the auction runs from 3:15 pm to 3:35 pm, and F&O contracts trade until 3:40 pm. Traders complained about sharp price jumps and thin trading in the auction, so SEBI asked for comments in September 2026 and received over 20,000 suggestions, as reported by Business Standard.

New timings from 7 December 2026

All times are IST, on every trading day.

The auction's starting price is the volume-weighted average price of the last 15 minutes of normal trading, from 3:15 pm to 3:30 pm. If a share did not trade then, its last traded price of the day is used.

Expiry day for futures and options

Your orders in the auction

Special sessions

From 7 December 2026, the closing price on a special trading day will also be set by a 10-minute auction. F&O will close 5 minutes after the auction, and a 10-minute post-close session will start 5 minutes after that. Muhurat trading on 8 November 2026 comes before this date, so the exchanges' own circular for that day will set its timings.

What it means for you

Your broker and the exchanges will publish their own notes before 7 December. SEBI has asked NSE, BSE and the clearing corporations to update their procedures within 7 days of the circular.

Before you decide

Saifu is not a SEBI-registered investment adviser. This guide explains a market rule. It is not advice to buy, sell or trade. Investments in shares and derivatives are subject to market risk.

Sources: SEBI: Review of certain aspects of the Closing Auction Session, market timings and settlement methodology for derivatives contracts, 15 October 2026, Business Standard: CAS review, SEBI announces last 30-minute VWAP method for settlement, Outlook Business: closing auction session and new market timings from 3 August, Angel One: SEBI revises closing auction rules.

Rules, rates and limits change. Check the official source linked above before you rely on a figure here. Posts never contain referral or affiliate links from the writer.

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