The top 3 holdings of XBI are Alnylam Pharmaceuticals (ALNY) (3.639%), Insmed (INSM) (3.145%) and Halozyme Therapeutics (HALO) (3.09%).

FUND	HOLDING	% OF FUND	VALUE ($)
XBI	Alnylam Pharmaceuticals (ALNY)	3.639%	$166.2M
XBI	Insmed (INSM)	3.145%	$143.7M
XBI	Halozyme Therapeutics (HALO)	3.09%	$141.1M
XBI	Incyte (INCY)	2.92%	$133.4M
XBI	Regeneron Pharmaceuticals (REGN)	2.68%	$122.4M
XBI	United Therapeutics (UTHR)	2.611%	$119.3M
XBI	AbbVie (ABBV)	2.542%	$116.1M
XBI	Neurocrine Biosciences (NBIX)	2.531%	$115.6M
XBI	Gilead Sciences (GILD)	2.469%	$112.8M
XBI	Biogen (BIIB)	2.429%	$110.9M
XBI	Madrigal Pharmaceuticals (MDGL)	2.415%	$110.3M
XBI	BridgeBio Pharma (BBIO)	2.389%	$109.1M
XBI	Biomarin Pharmaceutical (BMRN)	2.361%	$107.8M
XBI	Amgen (AMGN)	2.355%	$107.6M
XBI	Natera (NTRA)	2.257%	$103.1M
XBI	Moderna (MRNA)	2.196%	$100.3M
XBI	Exelixis (EXEL)	2.171%	$99.2M
XBI	Vertex Pharmaceuticals (VRTX)	2.042%	$93.3M
XBI	EXACT Sciences (EXAS)	1.949%	$89M
XBI	Roivant Sciences (ROIV)	1.687%	$77.1M
XBI	Cytokinetics (CYTK)	1.559%	$71.2M
XBI	Ionis Pharmaceuticals (IONS)	1.513%	$69.1M
XBI	Crispr Therapeutics (CRSP)	1.46%	$66.7M
XBI	Avidity Biosciences (RNA)	1.37%	$62.6M
XBI	Revolution Medicines (RVMD)	1.349%	$61.6M

Holdings are tracked for approximately 2000 ETFs.