As discussed in a previous post in the beginning of May, the commodity CRB Index started a correction following three failed tests at the 61.8% Fibonacci retracement of the 2008 - 2009 plunge. The target of the correction was the 320 area which has been met recently as can be noticed in the updated daily chart above. The index strongly bounced from the 320 area right on the monthly cycle.
The updated weekly chart below shows that 300 - 320 could prove strong support due to the monthly rising uptrend line (now just above 300) connecting the 2009 and 2010 lows. Any break below 300 could send the index to 250 or even lower, while holding above 300 and turning higher could set the stage for a new test of the April - May 370 area. Trading wise, aggressive traders could go long due to the good risk/reward at this point. However, we should be aware that both daily and weekly charts are still in downtrends.