Abstract: A system receives asset data indicating assets that have an uncertainty contributing to a financial risk of a portfolio. The system controls a multi-stage financial risk estimate process by determining a first portion and a second portion of the asset data; and computing, for the first portion, a first stage of the process. The system computes a second stage of the process for the first portion in an overlapping time period as computing the first stage for the second portion. The system, responsive to a completion of all computations of the process for the first portion, aggregates a computed risk according to the process for the first portion with any previously computed risks for other portions of the asset data besides the first and second portion. The system outputs an estimate for the financial risk for the portfolio before completing the process for the second portion.