Abstract: A nested auction machine is configured to rank and display a user interface element among a set of user interface elements based on a value received from a server of a provider. The nested auction machine may request and receive a value from a server of a provider, the value being offered for inclusion of a provider identifier within a list of identifiers. The nested auction machine may then cause display of the provider identifier at the identifier position within the list of identifiers based on the value, and concurrently rank a user interface element among a set of user interface elements based on the received value. Having ranked the user interface element based on the value, the nested auction machine may cause display of the user interface element among the set of user interface elements at a location within a graphical user interface based on the rank.