Abstract: The present invention relates to a system and method for performing a block auction. In a block auction, a block request is enabled to be executed against the plurality of quotes of different bidders, which comprise at least a part of the request volume. In accordance with the present invention, neither specification of the trade side of the request nor publication of the individual quotes submitted by bidders are required for performing the auction at an electronic trading system. Therefore, the auction can be performed anonymously and the trading of block requests comprising large volumes is enabled.