What is “contango,” and where did the word come from?
‘Contango is a term used in the futures market to describe an upward sloping forward curve (as in the normal yield curve). One says that such a forward curve is “in contango” (or sometimes “contangoed”). Formally, it is the situation where, and the amount by which, the price of a commodity for future delivery is higher than the spot price, or a far future delivery price higher than a nearer future delivery. The opposite market condition to contango is known as backwardation’ WP: http://en.wikipedia.