Bookmap for Equities – FAQ

It is a real-time, full depth, order-by-order raw data for all US Equities. The exchanges coverage are Nasdaq Totalview and Nasdaq Last Sale (both order book and trades). More exchanges will be added soon.


  • As opposed to Futures that are traded on a single exchange, Equities are traded on several exchanges in parallel. Using Bookmap for Devexperts you will get access to the full order depth and trades for the all US equities based on data coming from one of most liquid US exchange – NASDAQ.

  • Level 1 data includes the Best Bid and Offer (BBO) prices and the last traded prices with the respective volumes.Level 2 data in some cases refers to Level 1 from different exchanges, where the BBO may be different between the exchanges. In other cases, Level 2 may relate to depth of market with limited levels (e.g. up to 10 levels.

  • Full depth data includes all available real time bid and ask prices (on all levels) and also the last traded prices.


  • The market data feed contains the highest resolution from the covered exchanges and includes all depth of market data updates and all trades.

  • Unlike some of the Futures exchanges there is no limitation of the transmitted number of depth levels.


  • Full depth vs. level 2

  • You get all events. No aggregation of data

  • Low latency

  • Click here for a full product description.



  • Non-professional trader is any natural person who is neither:

    • registered or qualified in any capacity with the SEC, the Commodities Futures Trading Commission, any state securities agency, any securities exchange or association, or any commodities or futures contract market or association;
    • engaged as an “investment advisor” as that term is defined in Section 201 (11) of the Investment Advisers Act of 1940 (whether or not registered or qualified under that Act);
    • employed by a bank or other organization exempt from registration under federal or state securities laws to perform functions that would require registration or qualification if such functions were performed for an organization not so exempt.
  • Professional trader is any other person or entity who do not meet the definition of a Non-professional trader.


Yes. The charge cannot be prorated. Bookmap is obliged to pay for the subscription period. Therefore, if a you are enabled for any portion of your subscription period you will be charged for the full period. This is inline with the exchanges charging policy.


  • Bookmap has an API. However it is partially blocked for the US equities data. If you want to enable the equities API you should contact Devexperts directly and sign a separate agreement for direct API to Devexperts. Additional exchange fees may apply depending on your intended use of data. Click here for NASDAQ license policy.

  • If you wish you can use the Bookmap API for Futures. Click here for details of the API.

  • If you wish to connect with developers that work with Bookmap API please contact us at [email protected]


Yes. However, this option requires an Advanced version subscription.


Yes, there is a limit of 10 symbols at a time. You can nevertheless subscribe to any of the thousands of US equity symbols available.


Yes, click here to search symbols on google finance or use any of several other services to find symbols.


You should use your bookmap.com credentials (the ones you got when you registered to Bookmap).


Currently we do not provide historical data. We may add it in the future depending on market demand.


Yes, you can record the data with Bookmap and also use Bookmap Replay mode & simulator to replay the data for practice and analysis purposes.


Devexperts provides data feed solutions for various big brokers like TD Ameritrade. The equities market data feed is very reliable and have 99.99% up time during trading hours.


You can run Bookmap on any PC that meets the hardware requirements. However you cannot use Bookmap simultaneously on multiple PCs. If you have an active session on a certain PC you will be able to terminate it once you log in to a second PC.


Devexperts feed does not connect to live accounts. At this stage you can trade dxFeed only with Bookmap simulator (the 2nd run mode). We plan to connect stocks execution platforms soon. If you have specific preference for a specific execution platform please let us know.