Copper is breaking below its uptrendline from June and more importantly is breaking below 420 price support. A break below 408 would suggest a much steeper sell off to at least the Fib 50% retracement pt and price support at 368. This was also the April/10 price high breakout pt that was successfully tested and confirmed as support last November and the SPX high as well in April/10 and is a significant price point. Copper is a leading indicator of the stock market and economy.