NEW YORK, May 7, 2014 /PRNewswire/ -- Retail Opportunity Investments Corp. (NASD: ROIC) will replace AMCOL International Corp. (NYSE: ACO) in the S&P SmallCap 600 after the close of trading on Friday, May 9. S&P MidCap 400 constituent Minerals Technologies Inc. (NYSE: MTX) is acquiring AMCOL in a deal expected to be completed soon pending final approvals.

Retail Opportunity Investments, a real estate investment trust (REIT), engages in the acquisition, ownership and management of community and neighborhood shopping centers. Headquartered in San Diego, CA, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification) Retail REITs Sub-Industry index.

Following is a summary of the change:

Additions to and deletions from S&P Dow Jones Indices do not in any way reflect an opinion on the investment merits of the companies involved.

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