This week, the copper contango remained high, but the copper price fell. So I still expect the copper price to go higher as we move to backwardation. The copper contango theory will not be wrong. As I write this post, I see the copper price go up from $3.53/lb to $3.59/lb. The next step to extend this copper contango theory is to identify the tops and the bottoms of the contango. What are the upper limits of contango and lower limits of the backwardation? Chart 1a: Copper Contango Vs. Copper Price If we quickly look at history, we can see that in 1988, we got a price of $1/lb copper and a backwardation of around $0.2/lb. That's 20%. If we then look at another data point in 1996, we got a price of $1.25/lb and a backwardation of around $0.1/lb. That's 8%. Similarly, in 2006 we got 7%. For contango we have 13% in 1982, 7% in 1993, 2% in 2008. So as far as major backwardation lows, we have a range between 7% and 20% and 2% to 13% for major contango highs. Today we are at 0.6% (0....