Why Trinseo S.A. Stock Jumped Tuesday

Shares of Trinseo S.A. (NYSE: TSE), a materials company specializing in synthetic rubber, latex binders, and plastic products, saw its stock jump on Tuesday. Shares were up 9.7% as of 12:19 p.m. EDT.

The stock's rise follows news that Trinseo is replacing WageWorks (NYSE: WAGE) in the S&P SmallCap 600 index.

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Source Fool.com