Pre-open order book

NSE runs a call auction from 09:00 to 09:15 before normal trading starts. This is the order book from that auction: the biggest resting orders, which way each book is leaning, and the gap those orders imply against the previous close.

NOT STARTEDThu, 13 Aug, 2026book stamped 09:07 IST

Today's pre-open auction opens at 09:00 IST. Showing the last session we hold, from Thu 13 Aug 2026, stamped 09:07:34 IST.

Stocks in book
208
Implied up
75
Implied down
96
Median imbalance
-53.2%
the neutral point, not zero
No book
0
no price discovery

Big resting orders

Level value = quantity resting at that price level x that price, in rupees. Each stock contributes its single largest level.

StockSidePriceQuantityValueImplied gap
HDFCBANKSell726.951,00,0007.27 Cr-0.29%
GRASIMSell3,299.0019,6276.47 Cr-0.26%
BHARTIARTLat IEPSell1,965.0013,8252.72 Cr+1.03%
RELIANCEat IEPSell1,327.8013,8341.84 Cr-0.09%
BSEat IEPSell3,520.004,3721.54 Cr-0.20%
MCXat IEPBuy2,980.504,7051.40 Cr+0.35%
APOLLOHOSPSell8,750.001,4151.24 Cr+1.67%
IDEASell13.707,33,5171.00 Cr+1.26%

These are the orders that did NOT match. NSE publishes the top 5 unmatched price levels a side of the residual book, so every ladder is truncated.

Buy-leaning books

Notable = top or bottom decile of eligible names in this same snapshot. Zero is not the neutral point, so the median of the day is published beside every board.

Sell-leaning books

Notable = top or bottom decile of eligible names in this same snapshot. Zero is not the neutral point, so the median of the day is published beside every board.

How to read this

These orders have not traded. The pre-open call auction takes orders from 09:00 to 09:08, and any of them can be modified or cancelled right up to that cut-off. A large resting quantity is an intention, not a purchase, and nobody knows who placed it.

Derivatives have no pre-open session. Futures and options open at 09:15. The F&O view is the pre-open book of the 208 underlying stocks, which is the closest honest read available before the derivative starts trading.

Book imbalance = (totalBuyQuantity - totalSellQuantity) / (totalBuyQuantity + totalSellQuantity), over the whole residual book.

Implied gap = (IEP - previousClose) / previousClose. Computed here, not read from NSE pChange, which disagrees with its own price fields on some rows.

Eligible = a two-sided book worth at least Rs 1 crore. One-sided books are listed separately, never mixed in.

Educational only. Downstox is not a SEBI-registered research analyst or investment adviser, and nothing here is a recommendation to buy or sell.

What happened next, measured

Of the names this board highlighted each morning, how many closed above their own opening price that day. This is a record of what happened, not a prediction, and not advice.

2 / 20

sessions recorded so far. No percentage is shown until there are enough of them to mean anything. A rate built on a handful of days is noise with a decimal point on it.

Only 2 of 20 sessions recorded so far. No rate is shown until there are enough to mean anything. Sessions from 2026-08-12 to 2026-08-13.

Past base rates do not carry forward. Downstox is not a SEBI-registered research analyst and this is not a recommendation to buy or sell anything.