An ETF pricing mechanism for use in managed Exchange Traded Fund (ETF) or other collective investment vehicle (CIV) that retains the confidentiality of the vehicle's assets. The method of pricing may comprise: selecting a security price for each portfolio security, wherein each selected security price is associated with a time offset within a pricing interval, and wherein the time offsets are not identical for all of the selected security prices; generating a plurality of partial price components based on the selected security prices; determining a intra-day indicative value (IIV) of a CIV share in response to the plurality of partial price components; and, publishing the determined IIV.