The iShares Dow Jones U.S. Pharmaceuticals Index Fund (IHE) has Watson at 2.84% of its holdings and PowerShares Dynamic Pharmaceuticals Portfolio (PJP) is 2.8% WPI.
Among the largest underlying components of PJP, in trading today Prestige Brands Holdings ( PBH) is down about 0.7%, and Bristol Myers Squibb Company ( BMY) is up by about 0.2%.