NEW YORK, Sept. 30, 2015 /PRNewswire/ -- S&P 500 constituent Joy Global Inc. (NYSE: JOY) will replace Thoratec Corp. (NASDAQ: THOR) in the S&P MidCap 400, and Verisk Analytics Inc. (NASDAQ: VRSK) will replace Joy Global in the S&P 500 after the close of trading on Wednesday, October 7. S&P 500 constituent St. Jude Medical Inc. (NYSE: STJ) is acquiring Thoratec in a deal expected to be completed on or about that date, pending final approvals. Joy Global has a market capitalization more representative of the mid-cap market space.

Joy Global Inc. manufactures and services mining equipment.  Headquartered in Milwaukee, WI, the company will be added to the S&P MidCap 400 GICS (Global Industry Classification Standard) Construction Machinery & Heavy Trucks Sub-Industry index.

Verisk Analytics provides information about risk to professionals in insurance, healthcare, financial services, government, supply chain, and risk management. Headquartered in Jersey City, NJ, the company will be added to the S&P 500 GICS Research & Consulting Services 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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