Quotes entered into an automated trading system may comprise a visible, or primary, amount, and a linked or hidden amount. The visible amount only is shown to other traders on the system but part or all of the linked amount may be dealt if the order with the quote is match is for an amount greater than the visible amount. If, after matching and deal confirmation, all the visible amount has been dealt, but some or all of the linked amount remains, a fresh order for the remaining linked amount is generated and submitted to the trading system for matching. The new quoted may be visible only or may have a visible component up to a limit specified by the maker on submission of the original quote, with the remainder being linked. Maker quotes converted to taker quotes by an auto-match routine may be resubmitted for undealt linked amounts in the same way. In one aspect of the invention, linked amounts are matched and dealt before visible amounts.