Historical Data

If you intend to make historical data requests that return more than 1000 bars, it is recommended that TWS be configured to increase the sizes of the API socket buffer. This can be done in the "settings.xml" file in the user's Jts directory. It is important that TWS not be running when its settings.xml file is manually modified. In the <SystemSettings> XML element, the <apiSocketBufferSizes> elements can be used for this purpose. Adding this line to the <SystemSettings> element in settings.xml should suffice:

<apiSocketBufferSizes>500000</apiSocketBufferSizes>