Copper prices, bellwether for the global economy, have been consolidating in a narrow band for almost a year. Breakout above $7500/tonne (and the descending trendline) would indicate a primary up-trend. Reversal below support at $6800/tonne, however, would offer a target of $6000. Narrow oscillation of 13-week Twiggs Momentum around zero reflects the current indecision.
The monthly chart below illustrates how the Shanghai Composite Index tends to lead broad commodity prices by up to 12 months. The Dow Jones-UBS Commodity Index is testing its descending trendline, but another decline on the Shanghai Index would likely cause further weakness. Recovery above 135 is unlikely at present, but would suggest a primary up-trend.
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