NEW YORK, -- Kaiser Aluminum Corp. （NASD: KALU） will replace Superior Well Services Inc. （NASD: SWSI） in the S&P SmallCap 600 index after the close of trading on a date to be announced. Superior Well Services is being acquired by S&P 500 constituent Nabors Industries Ltd. （NYSE: NBR） in a deal expected to close soon, pending final conditions.
Kaiser Aluminum manufactures semi-fabricated aluminum products. Headquartered in Foothill Ranch, CA, the company will be added to the S&P SmallCap 600 GICS （Global Industry Classification Standard） Aluminum Sub-Industry index.
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