AIRR features integrations with two platforms for collection of public market information: IEX Cloud and EOD. Each of those platforms has its pros and cons, that's why we are using both simultaneously.

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IEX Cloud is primarily focused on US market, while EOD is connected to 68 international exchanges. If you want to add a ticker from a non-US exchange, you should follow the <ticker>.<exchange code> format. The list of available exchange codes can be found here.