Pre-market zero bids meaning

Wed, 20 May 2026 00:00:00 +0000

When the pre-open session on NSE / BSE shows zero bids for a scrip, it means no buy orders have been entered yet, or all entered buy orders are below the displayed indicative price.

What zero bids implies

Scenario	Meaning
Truly no orders	No interest from buyers at any price; rare for liquid scrips
All orders below indicative price	Buyers wanting lower entry than the indicative open
Pre-09:08 (collection phase)	Orders still being received; normal at start

What it does NOT mean

Zero bids does not mean the stock is unbuyable.
It does not mean the scrip is suspended.
It is a snapshot of the pre-open state, not the regular session.

How it resolves

By 09:08 (end of order collection):

Zerodha pre-market session timings

Wed, 20 May 2026 00:00:00 +0000

The pre-market session (also called “pre-open session”) on NSE and BSE runs from 09:00 to 09:15 IST, before the regular continuous trading begins. The session uses a call-auction mechanism to determine the opening price for each scrip, accommodating any overnight news flow and balancing supply / demand at the open.

Phases within pre-market

Phase	Time (IST)	Activity
Order collection	09:00 to 09:08	Orders are accepted (limit and market)
Order matching	09:08 to 09:12	Indicative opening price computed; matchable orders identified
Buffer period	09:12 to 09:15	No order placement; transition to continuous session
Continuous start	09:15 onwards	Regular trading begins; opening price reflects pre-open match

How the pre-open price is computed

During the order collection phase (09:00 to 09:08), orders accumulate. The exchange: