Inverted Sourcing is a price volatility reduction procurement strategy usually conducted by procurement

Procurement

Procurement is the acquisition of goods or services. It is favourable that the goods/services are appropriate and that they are procured at the best possible cost to meet the needs of the purchaser in terms of quality and quantity, time, and location...

 or supply-chain person by which the value of an organization's waste-stream is maximized by actively seeking out the highest price possible from a range of potential buyers, exploiting price trends and other market factors. This technique is used by organizations as a source of alternative income generation, and also as an offset to reduce the net impact of front-end acquisition

Procurement

Procurement is the acquisition of goods or services. It is favourable that the goods/services are appropriate and that they are procured at the best possible cost to meet the needs of the purchaser in terms of quality and quantity, time, and location...

pricing, thereby reducing exposure to price volatility for a given sourcing category.