Abstract: The present invention is directed to an on-line method and system for automating price discovery for cash trade in tangible agricultural commodities with physical delivery requirements, in real-time among a network clients authorized to conduct business with one another, the clients comprising buyers, sellers and resellers. Communications and offers are restricted to client groups with established business relationships to insure confidentiality. Clients input data including basis amounts and live data feed of futures prices is provided, to enable rapid updating of buy price offers down the chain from buyer to reseller to seller. Resellers and sellers respond by selectively placing offers to sell, which when met with acceptance by the other party, are transacted.