NEW YORK, Aug. 27, 2014 /PRNewswire/ -- S&P SmallCap 600 constituent Centene Corp. (NYSE: CNC) will replace MICROS Systems Inc. (NASD: MCRS) in the S&P MidCap 400, and Aviv REIT Inc. (NYSE: AVIV) will replace Centene in the S&P SmallCap 600 after the close of trading on Wednesday, September 3. S&P 100 & 500 constituent Oracle Corp. (NYSE: ORCL) is acquiring MICROS in a deal expected to be completed soon pending final approvals.

Centene provides multi-line healthcare programs and services. Headquartered in St. Louis, MO, the company will be added to the S&P MidCap 400 GICS (Global Industry Classification Standard) Managed Health Care Sub-Industry index.

Aviv REIT specializes in the ownership and triple-net leasing of post-acute and long-term care skilled nursing facilities. Headquartered in Chicago, IL, the company will be added to the S&P SmallCap 600 GICS Health Care REITs Sub-Industry index.

Following is a summary of the changes:

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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