NEW YORK, Dec. 1, 2011 (GLOBE NEWSWIRE) -- Perrigo Company (Nasdaq:PRGO - News) will become a component of the NASDAQ-100 Index(R) (Nasdaq:NDX.V - News), the NASDAQ-100 Equal Weighted Index (Nasdaq:NDXE) and the NASDAQ-100 Ex-Tech Sector Index (Nasdaq:NDXX) prior to market open on Tuesday, December 6, 2011. Perrigo Company will replace Joy Global Inc. (Nasdaq:JOYG - News).
