Two days ago we pointed out the dramatic change in the ratio of copper to gold, which moved at the highest rate of change since June of 2010. Today, the rate of change is even higher at 4.3%. And with copper starting to seriously take on water, a curious observation emerges: is the gold-copper ratio, which on an inverted basis was virtually a tick for tick correlation conjugate for the S&P, now simply a harbinger of where the stock market is headed. All else equal, once the Chinese exuberance dynamics which appear to have stalled out in copper, move to equities (which as Finisair demonstrated yesterday is only a matter of time) we believe, as the attached chart shows, that the fair value of the stock market is about 120 points lower. Since this is a relative comparison, those who do not wish to trade a single series, can put on a pair trade of short the Gold/Copper ratio (predicting it will decline from the current 3.4 - it is shown inverted on the chart below) and short the S&P in expectation of a compression.
And for those who wish to have nothing to do with the Fed's third mandate in the form of the stock market (which is all), another even more convoluted way to play the current multi-asset mispricing, is to go long the Gold-Copper ratio (expect gold to stay flat while copper declines), while shorting the Gold Miner/Copper Miner ETFs (GDX, COPX).
Lastly, those who just want to play with gold, an interesting observation is that Gold has marginally outperformed Gold Miner stocks. An appropriate and simple compression trade here would be short gold and long gold miners for a few basis points compression.