Diwali 2026 stock market holiday: NSE, BSE open on Sunday but closed this day - Muhurat trading date, time | Samvat 2083

Indian exchanges NSE and BSE have announced their trading calendar for Diwali 2026, with the headline indicating that the exchanges will be open on a Sunday while certain other days are closed, alongside a special one-hour Muhurat trading session that traditionally marks the start of the Samvat 2083 financial year. The mechanism at work is largely calendar-driven liquidity: holiday closures compress trading days, which concentrates order flow into the sessions that remain open and can widen intraday volatility as participants reposition ahead of extended breaks. Domestic equity derivatives and cash-market participants, particularly in Nifty and Sensex-linked instruments, are the most directly exposed, since settlement timing and margin requirements shift around non-trading days. Traders should watch the official NSE and BSE holiday circulars for the confirmed closure dates and Muhurat session timing, as well as the pre-holiday order-book depth and volume in the sessions immediately before and after the break.

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