Abstract: A computer system and method evaluates and auctions financial instruments on a networked auction platform. The auction platform may be accessed via the Internet. Auction participants that have provided required participant information are registered in a database, and may include one or more registered sellers and registered buyers. An inventory of a registered seller's financial instruments is received and stored via the auction platform. An auction event is initiated the inventoried financial instruments in response to an auction request. Direct, integrated access is provided to a data and analytics tool that provides cash flow modeling that allows investment cash flow analysis and assessment of underlying risk of default based upon assumptions input by a registered buyer and past performance data. The cash flow analysis and risk assessment may be used by the registered buyer to determine a bid price or bid range for the financial instrument, or a decision not to bid may be made.