Do you automatically convert the sales proceeds from my closing stock trade to my Base Currency?

Once you close a security position which is denominated in a currency other than your Base Currency, the proceeds will remain in that non-Base Currency and subject to exchange rate risk until such time you either perform a currency conversion or use those proceeds for another similarly denominated transaction.  Similarly, profits or losses on futures contracts which settle in a currency other than your Base Currency will remain in the currency of denomination for that contract and will not be automatically converted by IBKR into your Base Currency.

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