US Patent 11908006 Message elimination in multi-model risk correlation system

A computer implemented method for cross asset correlation includes receiving, by a processor, portfolio data for a plurality of portfolios, determining, by the processor, a single portfolio performance vector for each of the plurality of portfolios based on a portfolio specific model, determining, by the processor, a joint portfolio performance vector for the plurality of portfolios based on portfolio specific models, determining, by the processor, for each portfolio, a portfolio specific scalar based on the single portfolio performance vector and the joint portfolio performance vector; and modifying, by the processor, a portfolio risk based on the portfolio specific model and the portfolio specific scalar.