A real time data processing system, method and program product for processing a stream of data events. A system is provided that includes: a running profile processing system for updating a running profile each time a new data event value is inputted, wherein the running profile includes percentile data; and an analysis system for analyzing the running profile, wherein the analysis system performs a composite analysis that utilizes: (a) results obtained from comparing a new data event value to the percentile data, and (b) stored results obtained from previous compare operations.