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Comdirect's service is slightly weaker than NinjaTrader's and a comparison of their fees shows that Comdirect's fees are higher than NinjaTrader's.
Account opening takes more effort at Comdirect compared to NinjaTrader, deposit and withdrawal processes are more seamless at Comdirect, while customer service quality is lower than NinjaTrader's.
Our experts rated the trading platform of Comdirect as somewhat worse than the platform of NinjaTrader, found that clients have access to much more markets and products with Comdirect, while NinjaTrader provides somewhat better research and education.