Methods and systems for managing the sale of commodities, such as tier-priced commodities, are described. Risk is managed by bundling with the commodity a financial instrument designed to indemnify against the risks associated with purchasing the commodity. The financial instrument may be an insurance instrument, for example. In one embodiment, bundled products are offered for sale to two or more bidders, at respective offer prices. The bidder that exceeds their respective offer price by the greatest amount is sold the bundled product. Different prices may be offered to different purchasers for respective bundled products. The offers, bids, and determination of who wins the bidding may be made by processors or computers coupled to networks, such as the Internet.