Patent ID: 8156027

Claim:
A computerized method for determining at an effective valuation time a fair value of an exchange traded fund comprising a plurality of securities, each of said plurality of securities having a weighting in said exchange traded fund, comprising: for each security in said exchange traded fund: electronically receiving historical price data, wherein said historical price data comprises data for a plurality of price-related time-dependent variables; electronically performing a regression analysis on said historical price data; and electronically calculating at said effective valuation time a fair value of said security based on said regression analysis and on values of one or more of said plurality of price-related time-dependent variables; electronically multiplying said fair value by said security's weighting in said exchange traded fund to obtain a weighted fair value; and aggregating said weighted fair values of each of said plurality of securities in said exchange traded fund to obtain a fair value adjusted price for said exchange traded fund at a time when at least one security in said exchange traded fund is not currently traded in a liquid market, wherein the steps of electronically receiving, performing, calculating, and multiplying are processed on a computer system.