NEW YORK, March 24, 2016 /PRNewswire/ -- S&P Dow Jones Indices will make the following changes to the S&P 500, S&P MidCap 400 and S&P SmallCap 600 indices:

• S&P MidCap 400 constituent Hologic Inc. (NASD: HOLX) will replace Pepco Holdings Inc. (NYSE: POM) in the S&P 500, S&P SmallCap 600 constituent Abiomed Inc. (NASD: ABMD) will replace Hologic in the S&P MidCap 400, and Banc of California Inc. (NYSE: BANC) will replace Abiomed in the S&P SmallCap 600 after the close of trading on Tuesday, March 29. S&P 500 constituent Exelon Corp. (NYSE: EXC) acquired Pepco Holdings in a deal that was completed today.
   
• S&P MidCap 400 constituent Centene Corp. (NYSE: CNC) will replace Ensco plc (NYSE: ESV) in the S&P 500, Ensco will replace Centene in the S&P MidCap 400, and First Industrial Realty Trust Inc. (NYSE: FR) will replace Health Net Inc. (NYSE: HNT) in the S&P MidCap 400 after the close of trading on Tuesday, March 29. Centene acquired Health Net in a deal that was completed today.
   
• ServisFirst Bancshares Inc. (NASD: SFBS) will replace National Penn Bancshares Inc. (NASD: NPBC) in the S&P SmallCap 600 after the close of trading on Friday, April 1. S&P 500 constituent BB&T Corp. (NYSE: BBT) is acquiring National Penn Bancshares in a deal expected to be completed on or about that date pending final conditions.

Hologic develops, manufactures, and supplies diagnostics products, medical imaging systems, and surgical products. Headquartered in Marlborough, MA, the company will be added to the S&P 500 GICS (Global Industry Classification Standard) Health Care Equipment Sub-Industry index.

Abiomed researches, develops, and sells medical devices. Headquartered in Danvers, MA, the company will be added to the S&P MidCap 400 GICS Health Care Equipment Sub-Industry index.

Banc of California provides banking products and services. Headquartered in Irvine, CA, the company will be added to the S&P SmallCap 600 GICS Regional Banks Sub-Industry index.

Centene provides programs and services to under-insured and uninsured individuals. Headquartered in St. Louis, MO, the company will be added to the S&P 500 GICS Managed Health Care Sub-Industry index.

Ensco plc provides offshore contract drilling services. Headquartered in London, England, the company will be added to the S&P MidCap 400 GICS Oil & Gas Drilling Sub-Industry index.

First Industrial Realty Trust, a real estate investment trust (REIT), owns, manages, acquires, sells, develops, and redevelops industrial real estate. Headquartered in Chicago, IL, the company will be added to the S&P MidCap 400 GICS Industrial REITs Sub-Industry index.

ServisFirst Bancshares provides banking products and services. Headquartered in Birmingham, AL, the company will be added to the S&P SmallCap 600 GICS Regional Banks 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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