NEW YORK, Sept. 8, 2016 /PRNewswire/ -- El Pollo Loco Holdings Inc. (NASD: LOCO) will replace American Science & Engineering Inc. (NASD: ASEI) in the S&P SmallCap 600 after the close of trading on Monday, September 12. S&P SmallCap 600 constituent OSI Systems Inc.(NASD: OSIS) is acquiring American Science & Engineering in a deal expected to be completed soon pending final approvals.

El Pollo Loco Holdings develops, franchises, licenses, and operates quick-service restaurants. Headquartered in Costa Mesa, CA, the company will be added to the S&P SmallCap 600 GICS (Global Industry Classification Standard) Restaurants Sub-Industry index.

Following is a summary of the change:

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