Copper futures for July delivery have unsuccessfully attempted to pierce the upper boundary of the one-month old descending channel (2.695) on Tuesday. The positive momentum in the MACD signals that upside pressures may return in the short-term, but the price may first need to crawl comfortably above 2.711, the 61.8% Fibonacci retracement of the 2.539-2.991 bullish wave, to fuel a stronger buying interest. On the way up, the 50% Fibonacci and the 200-day simple moving average (SMA), could hostage the bulls. If not, then the 38.2% Fibonacci of 2.818 could next take control. Staying within the channel, support could be ... (full story)