Yes, but only on a limited basis as the platform demo is solely intended to demonstrate the functionality of the TWS and its API. As background, the TWS demo simulates a “live” stream of simulated market data using previous week's ticks and does not offer the historical data necessary to populate Ninja Trader charts requiring a combination of streaming and historical data…

An order that has been canceled or rejected will be accompanied by an error message generated by Ninja Trader and/or TWS (depending upon the source of the action). Order cancellations/rejections may be attributable to a variety of factors including IBKR credit policies, exchange restrictions or an invalid user request. In situations where the error message is not self explanatory, the user will need to…

Yes, Ninja Trader connects to the paper trading account the same way it connects to a live account. To familiarize yourself with the configuration and operation of these applications, IBKR strongly recommends conducting test trades through the paper trading account prior to submitting orders through your live account…

The TWS Application Program Interface (API) accommodates connection to a variety of third-party vendors, including Ninja Trader, who offer complementary order entry, charting, back-testing and analytics software programs designed to expand the functionality of TWS. Please see the…

No. There is an inherent lag between the time IBKR releases a TWS update and that at which any third-party vendor can reasonably respond with a corresponding software upgrade. In the case of Ninja Trader, its application is compatible solely with the standalone TWS platform (not the browser based). To determine the particular version currently supported, please refer to the …

No. Delayed market data is available from recent versions of the TWS API, but is incompatible with NinjaTrader specifically because the functionality required to request and display delayed data has not been implemented within the NinjaTrader platform. To receive data from IBKR in NinjaTrader, it's necessary to have market data subscriptions enabled in the Client Portal…

Yes, although not with the full order allocation functionality provided directly through the TWS. While Ninja Trader can be used to submit orders for a client sub-account through the Advisor master account, it does not allow for a single order to be allocated to more than one sub-account. This is in contrast to the TWS user interface which provides for multi-client trade allocations from a single order (through the Account Group or Allocation Profile options)…

Yes. TWS contains a page denoted by a tab marked “API” in the Classic interface through which open orders submitted via Ninja Trader or any third party software application can be monitored.

Additional Information…

Range Bar charts generally depict the movement of price for a particular instrument over a defined time period (e.g. month, day, 5-minute, 3-minute, etc.) or tick increment. Although we provide tick-by-tick data, we are not able to confirm if Ninja Trader's platforms are able to use our tick-by-tick data to populate their range bar charts…

Yes. It should be noted that Ninja Trader does not operate as a vendor of market data and use of this application requires provision of data by a third-party connectivity provider. While IBKR can serve as this provider for real time prices, these prices are not provided on an unfiltered tick-by-tick basis, a prerequisite for fully populating Ninja Trader charts.  Therefore, a common setup is to use Ninja Trader as a front-end order entry platform and route orders to TWS for execution and clearing by IBKR, then bridge to a third-party vendor for market data…