The Elite Circle - BaBAR: Backfilling Bid/Ask Recorder to extend the usefulness of the GOMI toolset
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BaBAR: Backfilling Bid/Ask Recorder to extend the usefulness of the GOMI toolset 5 *
BaBAR is a standalone application that creates live and historical tick data files for the GOMI toolset. Tab delimited output is also supported.

Please note: BaBAR will only work with an IQFeed connection as it is based on their proprietary data formats. (The IQFeed API)

I originally wrote this application to avoid the issue with GOMI toolset indicators and their derivations which required me to keep charts up all the time. NinjaTrader does not allow recording of historical Bid/Ask data, so disruptions for any reason would cause blank spots in my charts.

However once I got a ways into development, I realized it could be used for much more than that. This application is capable of grabbing Bid/Ask data from a wide range of instruments over a long time frame. Currently IQFeed provides 180 days of data, but as I store more data my sample size will continue to grow.

More recently, I extended the ability to write tab delimited files which include new fields provided by the latest IQFeed Client. These include millisecond resolution, market center and trade condition codes for each tick.

I now have Bid/Ask tick data in both GOMI binary and tab delimited format (with extended fields) for all futures contracts, the 100 most active ETFs and all of the equities that comprise the DOW, NASDAQ, and S&P 500 indices.

Besides having Gomi’s indicators ready to go on just about any chart I can think of, I can now use the GOMI family of indicators in strategy development for any of these instruments, as well as datamine using external applications.

I believe the tab delimited format can also be used for other purposes, including better tick aggregation, but I haven't fully explored that yet.

A NinjaTrader Export file format is also available, which is produces files for direct import into NinjaTrader.

If you like using BaBAR, please consider subscribing to the Official GomRecorder and QCollector Tick Data Sharing Thread, so that when other BMTers need data, you can help them out. Also in that regard, there is a folder in the BaBAR distribution called "Create Monthly Files for BMT Data Sharing Thread" which provides an automated way to create monthly data for the data sharing thread.


Current Version 1.4.5a

(Uploaded August 4, 2014)
  • The application remains the same, but the sample Gomfolder & related spreadsheets were updated, including a fix of a typo in the gold (GC) contract.

Support thread:

If you have any questions or comments, or run into any problems, please see the support thread.

Subscribing to this thread is suggested as it is where I will make announcements, etc.


Requirements:
  • This application requires an IQFeed data connection. A regular subscription will do however; it does not require a special developer or other license, and this app will run concurrently with your NinjaTrader or other trading platform. Note: Because data vendors have different APIs (internal data architectures) there is no way to adapt the application to other sources such as CQG, etc.

  • Gomi released an update of his toolset to version 2.6, which among other things has a change to help ensure that the indicators will be compatible with this application. If you use this application, be sure to update your GOMI toolset installation to the latest version, always available here:

  • After installing version 2.6 of the Gomi Toolset, >>be sure to apply the patch<< included with the download.

  • If you currently have charts that use the GOMI toolset, the only other change required to use this application is to remove the GomRecorderIndicator from your charts as it is no longer needed, and to be sure that all other GOMI indicators on your charts have their “Write Data” property set to false.
Please Note:
  • Be sure to read the “READ ME FIRST” pdf file included in the package before installing or using the application. (And before asking for support please.)

  • This download is a ZIP file, but it is not a NinjaTrader import file. Do NOT import it into NT. Just open it with explorer.

Older Version 1.4.5

(Uploaded June 27, 2014)
  • This version fixes a problem that some users outside the US experienced.

  • Also the futures contracts in the sample instrument lists have been updated.

Older Version 1.4.1

(Uploaded December 6, 2013)
  • This version has a small change to take advantage of IQFeed extending tick storage to 180 days.

Older Version 1.4

(Uploaded November 1, 2013)
  • This version mostly fixes bugs, but it is more robust than the previous version. Documentation is updated as well.

  • This version gives the user the option to include implied trades or not. See the included document "BaBAR Tab Delimited Output Reference" for details.

  • The included patch to the Gomi Toolset is still required to ensure millisecond compatibility. Be sure to install it using the provided instructions.

Older Version 1.3

(Uploaded August 1, 2013)

In this version I took advantage of the new features of IQFeed Client Version 5.0.
  • Gomi Files now have millisecond resolution. For this to work correctly the current version (v 2.6) of the Gomi toolset must be used, and patched with the file included in the download.

  • Tab delimited file output now has a millisecond resolution option, and also supports extended trade information for each tick. The extended trade information includes the market center where the trade occurred, and up to 4 trade condition codes.
(Both of these features are discussed in the “Read Me First” document included with the download.)


Older Version: 1.2

(Uploaded June 26, 2013)

In this version I focused on output file formats.
  • For the Gomi output format, I added the ability to store each instrument in a separate folder, which I am finding is quite convenient for managing the various instruments in my GOMFOLDER.

  • I added Tab Delimited and NinjaTrader output formats. The former should be consistent with QCollector output.

  • I also fixed a number of small bugs, including one where the application appears to use a lot of CPU cycles.

Older Version: 1.1

(Uploaded Nov. 18, 2012)
  • I released this version mainly to ensure compatibility with the new IQFeed client (v4.9) which was released yesterday. Be sure to use this version if you update your IQFeed client.

  • Additionally, there is now more extensive error reporting and I made a number of small UI fixes.

Original version: 1.0

(Uploaded Oct 14, 2012)
  • Initial Version


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August 5th, 2014
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