• Gross Processing Margin (GPM) is the difference between the cost of a commodity and the revenue generated after the commodity has been sold as a finished product.

  • A good example of GPM is the cost of oil compared to the income generated from the sale of gasoline.
  • GPM is used by traders to take advantage of price discrepancies between raw goods and finished goods.
  • Each product has its own terminology for GPM; such as crack propagation, crush propagation, and spark propagation.