Metals USA Holdings (MUSA) announced Friday that it has closed its acquisition of The Richardson Trident Co. The acquisition represents the company's third and largest acquisition since its IPO last April. Because of the acquisition, the company will also be able to expand into desired target markets in the Southeast, South central, Northeast and the West Coast of the United States, as well as in the business sectors of aerospace, defense, transportation and oil and gas field services. According to the company, it expects Trident's high EBITDA margin to average up MUSA's overall EBITDA margin. It also added that because it acquired Trident at an attractive valuation on a cycle average basis, it anticipates that Trident's contribution will be immediately accretive to its results. Shares are up 2.56% to $14.31.