CWPC chart <img src=http://bigcharts.marketwatch.com/charts/big.chart?symb=cwpc&compidx=aaaaa%3A0&ma=5&maval=9&uf=8&lf=16&lf2=1024&lf3=256&type=2&size=2&state=10&sid=1879891&style=320&time=18&freq=7&nosettings=1&rand=2773&mocktick=1&rand=7746>