Buying a bottom is one thing. Buying and hoping for a bottom is another. I appear wrong about two miners, whose share price continue to spiral downward. Cliffs Natural Resources (CLF) faces falling iron ore prices. Despite outputting a superior product, China's iron ore producers supply the market at below-market rates. $CLF, Cleveland-Cliffs Inc. / 60 Vale (VALE) also faces tremendous strain due to low iron ore prices. BHP Billiton Limited (BHP) and Rio Tinto (RIO) are better holdings for those wanting to play the rebound in commodity prices. $RIO, Rio Tinto Plc / 60 Freeport-McMoran (FCX) doubled its falling knife. First, copper prices hurt revenue in the last few years. Second, the company bought oil and gas properties, much to the benefit of executives, just before energy prices fell. FCX has a debt/equity of 1.89. As of Sept. 30, 2015, total debt/operating EBITDA was 3.8 times (x) and FFO adjusted leverage was 6.0x. $FCX, Freeport-McMoRan, Inc. / 60 Agree or disagree? Join Value Stocks at whotrades.