Where can I find the market calendar?

No, at this time IBKR does not offer access to the Borsa Istanbul.

You can find available exchanges on the IBKR website…

You can find the FINRA Margin Disclosure Statement on the FINRA website.

Additional Information…

You can find the Disclosure of Risks for Margin Trading on the Disclosures page of the IBKR website…

TradeGate Exchange is one of the markets available for trading at IBKR.

For more information on the available exchanges, see the Exchange Listings area of our website…