Abstract: A system for computing option prices for tangible depreciating items is described. Describing information of the tangible depreciating item is determined. Historical sales data of sold tangible depreciating items from marketplaces are collected. A present resale value of the tangible depreciating item is computed based on the historical sales data. A depreciation rate of sold tangible depreciating items having similar attributes as the tangible depreciating item is extrapolated from the historical sales data. A predicted resale value of the tangible depreciating item is computed based on the computed present resale value and on the extrapolated depreciation rate.