BioTech Stocks Sell Off, ETFs Fall Over 5%

Biotech stocks declined Tuesday as the broader market climbed to new highs. Biotech ETFs that fell more than 5 percent included the iShares NASDAQ Biotechnology Index (ETF) IBB,  First Trust NYSE Arca Biotechnology Index Fund (EFT) FBT and the SPDR S&P Biotech (ETF) XBI.

Investors may see opportunities to buy individual stocks on weakness. Below are the top five holdings of each fund.

iShares NASDAQ Biotechnology Index:

Celgene Corporation CELG

Amgen, Inc. AMGN

Regeneron Pharmaceuticals Inc REGN

Gilead Sciences, Inc. GILD

Biogen Idec Inc BIIB

First Trust NYSE Arca Biotechnology Index Fund:

Incyte Corporation INCY

Nektar Therapeutics NKTR

ISIS Pharmaceuticals, Inc. ISIS

Celgene Corporation CELG

Alkermes Plc ALKS

SPDR S&P Biotech:

Agios Pharmaceuticals Inc AGIO

Receptos Inc RCPT

Incyte Corporation INCY

Geron Corporation GERN

AMAG Pharmaceuticals, Inc. AMAG

Among the biggest losers Tuesday were ISIS Pharmaceuticals Inc. which recently traded at $57.16, down 9.10 percent and Agios Pharmaceuticals Inc. which recently traded at $108.32. down 10.07 percent.