- u -

• underlyingProductKey : ProductDownloadResponseForTradingSessionWithUnderlying::ProductForTradingSession
• underlyingSymbol : ProductDownloadForFutureClassResponse , ProductDownloadForOptionClassResponse , ProductDownloadForStrategyClassResponse , ProductDownloadResponseForTradingSessionWithUnderlying::ProductForTradingSession
• updateStatusReason : OrderBustReinstateReport , OrderBustReport , OrderFillReport , QuoteBustReport , QuoteFillReport
• userAcronym : AcceptFloorTrade , DeleteFloorTrade , QuoteFillReport , SessionProfileResponse
• userAssignedCancelId : OrderFormat2Cancel
• userAssignedCancelReplaceId : OrderFormat2CancelReplace
• userAssignedId : MassQuote::Quote , MassQuoteWithClearingInfo::Quote , OrderBustReinstateReport , OrderBustReport , OrderFillReport , OrderFormat1 , OrderFormat1CancelReplace , OrderFormat1CancelRequest , OrderFormat2 , OrderFormat2CancelReplace , OrderFormat2Response::OrderResponse , OrderResponse , PairedOrder::PairedOrderItem , PairedStrategyOrder::PairedStrategyOrderItem , QuoteFillReport , SessionProfileResponse , StrategyOrder , StrategyOrderCancelReplace
• userId : Logon , OptionsRiskControlKillUserRequest::User , OptionsRiskControlKillUsersResponse::Result , OrderBustReport , QuoteBustReport , SessionProfileResponse::DPM , SessionProfileResponse
• userSessionKey : LogonResponse