Will the migrated account due to Brexit retain the same configuration as the current account?

Procedurally, to sell short, all you need to do is specify your order Action as 'Sell' at the point you create your order. Note that we do not allow you to be both long and short the same security, so if you maintain a long position and enter a sell order, you will close out any long positions to the extent of your sell order and open a short position to the extent, if any, your sell order exceeds a long position. Please note that you must maintain a "Margin" type account with net liquidating equity of at least USD 2,000 for a short sale order to be accepted. Short sales are not allowed in "Cash" type accounts…

Excess liquidity is a crucial metric in your Interactive Brokers (IBKR) account that represents the amount of additional funds available beyond what is required to maintain your current positions. It is calculated as:

• Securities segment Excess Liquidity = Equity with Loan Value - Maintenance Margin Requirement…

The configuration of the account following the transfer will match that of the current account to the extent permissible by regulation.  This includes attributes such as margin capability, market data, additional users and alerts. 

Additional Information…

Depending on the legal entity your account has been migrated to due to Brexit, the bank instructions, currencies available for funding, and available funding methods may vary. Because of this, you will not want to use the old bank instructions associated with your account before Brexit migration. Fund transfers might be delayed or rejected if you use incorrect bank instructions. Please see the links below with information on how to fund your account after Brexit…