A system computing performance statistics for an investment fund or similar investment vehicle, computing a minimum investment performance corridor guarantee provided by an underwriter, and computing the amount of reimbursement due, if any, from an underwriter if the investment is liquidated at a point in time. The polyfluoroalkane carboxylic acid can act as a surfactant having distinguished monomer emulsifiability and latex stability when used as an emulsifying agent or as a dispersing agent for polymerization reaction of fluorine-containing monomers, or as an effective surfactant capable of enhancing the micelles solubility of fluorine-containing monomers such as vinylidene fluoride, etc. Upon being turned on and able to connect to the trusted device, the untrusted device repeats -.