Smart money activity in the past 24 hours that is out of the ordinary. It includes stock options bought on the ask or sold on the bid with unusual size and daily volume compared to open interest.

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Cliffs Natural Resources, Inc. operates as an international mining and natural resources company, which engages in the exploration of iron ore and metallurgical coal. It serves the North American steel industry from its mines and pellet plants located in Michigan and Minnesota. The company also operates an iron ore mining complex in Western Australia and serves the Asian steelmaking market. Cliffs Natural Resources was founded in 1847 and is headquartered in Cleveland, OH.

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