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Why Alcoa Stock Jumped as Much as 13.5% Today

Shares of Alcoa (NYSE: AA), one of the world’s largest aluminum companies, rose as much as 13.5% on Tuesday. The move appears to be a response to the company’s presentation at an industry conference, from which there was one really notable takeaway. Alcoa is a vertically integrated aluminum maker, offering the aluminum inputs bauxite and alumina as well as finished aluminum.