On the surface side, Joy has nearly twice the sales of its nearest competitor, Bucyrus International.

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Bucyrus, which is based in South Milwaukee, Wisconsin, will be kept as a brand.

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Earlier this month Caterpillar completed acquisition of Bucyrus, which is a major mining equipment manufacturer.

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Four months later Caterpillar made its bid for ERA, which had previously held talks with Bucyrus executives.

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Other main components of the Fund include Joy Global ( JOYG), Bucyrus International ( BUCY) and Walter Energy ( WLT).

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It blamed a slowdown in Japanese sales and costs of integrating the acquisition of mining machinery maker Bucyrus for the EPS shortfall.

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Caterpillar, for example, bought mining equipment firm Bucyrus International this week largely to take advantage of growing emerging market demand for raw materials.

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The company is not resting on its laurels either, steaming forward with the integration of acquisitions like mining equipment maker Bucyrus and upping its commitment to growth by spending some of the cash it generates.

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