Foreign traders on the Prague Stock Exchange do not have to want to resolve a proprietary interface to the Central Securities Depository of the CR. The members of this depository who already have the interface can offer traders the service of clearing agent, which involves the settlement of transactions on the market closed by the dealer. Data on the transactions are downloaded by an interface from the market and matched as required with the instructions from the trader. They are then validated and settled at the Central Depository.