Notice No.   20230214-30   Notice Date   14 Feb 2023
Category   Others   Segment   General
Subject   Introduction of New Real Time Datafeed Product: Level 3

Market participants are aware that the Exchange provides Realtime Trading data (Level 1 and Level 2) through its market data product via dedicated Leased lines to its customers including Data Vendors, Charting Software Vendors, Algo Traders, Websites, Television Channels, Mobile App Developers, Custodians etc.

Currently, through Level 1 feeds, data on Security details, Open, High, Low and Last traded price, Last traded quantity, Best bid / offer price & volume, Traded volume is disseminated, whereas the Level 2 feeds disseminate all Level 1 feed data along with 5 Best bid / offer price and volume, Weighted average price, Upper and lower circuit limits, Turnover value, Number of trades, Trend, Total buy and sell quantity.

To enhance the current data offering, the Exchange shall introduce a new Realtime Trading data product: Level 3 in Equity, Equity Derivatives, Currency Derivatives, Commodity Derivatives and EGR Segment. Level 3 data will give all information currently disseminated through Level 2 product with 20 Best bid / offer price and volume instead of the 5 Best bid / offer price and volume, tentatively with effect from April 1, 2023.

Market participants may please note that there shall be no change in the existing Level 1 and Level 2 products, and these products will continue as it is.

There may be an increase in the bandwidth requirement (5 MB to 7 MB approx.) for accessing level 3 feeds for all trading segments. The applicable pricing and testing schedule will be shared shortly.

In case of any queries or clarifications on this circular, Market participants may kindly get in touch with the Information Products team.


Information Products


For and On Behalf of BSE Ltd,


Sampada Athavale
Additional General Manager
Information Products

Neha Mishra
Senior Manager
Information Products

February 14, 2023.