The Trader Workstation is a Java-based application. As any other Java applications, it executes within a Java virtual machine (JVM) which manages the interactions between the program and the underlying Operating System (OS).
The memory (RAM) which is allocated by the operating system to the JVM constitutes the heap space. That is the area where all the class instances and arrays needed by the application are allocated. The heap space is created when the JVM is started and it is dynamically freed-up by the Garbage Collector (GC), the Java memory manager. When the need arises, the Garbage Collector is invoked to free up the heap space by unloading Java classes and other code structures no longer used by the application.
If the heap space is undersized, the Garbage Collector may not be able reclaim memory at the needed pace or may have to be called too often, draining the processor (CPU) resources. When this happens, the application may slow down, be unresponsive or even crash completely.
To ensure a smooth TWS run, it is therefore sometimes necessary to change the memory allocation, according to the layout complexity and the needs of the application itself.
Please follow one of the links below for the instructions, according to the Operating System and TWS release you are using
4) Click on Apply and then on OK
5) Shut down the TWS
1) Close TWS in case it is running
Brief video on how to configure presets for attached orders
Brief video on Presets that are relevant to your Primary Order
This article explains how to setup Cloud Watchlists.
It is now possible to synchronize the watchlists on your mobile devices with the watchlists of Trader Workstation on your computer. You will no longer need to worry about adding same tickers over and over again. The Cloud Watchlists feature is available in Trader Workstation build 936 and higher. Once the Cloud Watchlists have been enabled, they can be then imported in mobileTWS using the "Import" option from the Configuration menu.
Please note that it is not possible to sync watchlists from mobileTWS to your desktop TWS.
Interactive Brokers (IBKR) provides to its account holders a variety of proprietary trading platforms at no cost and therefore does not actively promote or offer the platforms or add-on software of other vendors. Nonetheless, as IBKR's principal trading platform, the TraderWorkstation (TWS), operates with an open API, there are numerous third-party vendors who create order entry, charting and various other analytical programs which operate in conjunction with the TWS for purposes of executing orders through IBKR. As these API specifications are made public, we are not necessarily aware of all vendors who create applications to integrate with the TWS but do offer a program referred to as the Investors Marketplace which operates as a self-service community bringing together third party vendors who have products and services to offer with IBKR customers seeking to fill a specific need.
While MetaQuotes Software is not a participant of IBKR's Investors Marketplace, they offer to Introducing Brokers the oneZero Hub Gateway so that MetaTrader 5 can be used to trade IBKR Accounts[1]. Clients interested would need to contact oneZero directly for additional assistance. Please refer to the Contact section from the following URL.
Note: Besides oneZero Hub Gateway, different vendors such as Trade-Commander, jTWSdata and PrimeXM also offer a software which they represent, acts as a bridge between MetaTrader 4/5 and the TWS. As is the case with other third-party software applications, IBKR is not in a position to provide information or recommendations as to the compatibility or operation of such software.
1: oneZero is not available for Individual Accounts, please click here for more information on Introducing Brokers.
Should you need to strip the TWS of any customization you did and revert to the default settings, use the instructions in this video.
Applicable to any TWS version under any operating system.