Copper is currently a case in point, according to Goldman Sachs GS.N, which pronounced itself a commodities super-bull late last year. The shift in the investment landscape has been all about profit-taking, funds slashing outright longs that had been accumulated on copper's April march up towards the $10,000 level. Chinese speculators remain unenthused by copper and that has nothing to do with the government's increasingly strident warnings about commodity price inflation.