I like this social proof (from M1 Finance, a discount brokerage) that the promotion they are emailing about frequently has seen good uptake from other users:pic.twitter.com/8rZkTo5x6v
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+1 to this. Their API is ancient and clunky - your python script connects to their desktop app 
- but IKBR gets the job done and doesn't cost much.
Fx fees at ib are amazing. Having the funds there for fx slightly less so. And calling customer service and hearing “press 3 if you are a hedge fund” is fun.
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