Tax-loss harvesting alternatives for RGEN

Among the 28 Biotechnology peers screened, FTRE (Fortrea) has tracked RGEN most closely over the past year, with a return correlation of 0.48. The strongest fund stand-in is ARKG (ARK Genomic Revolution ETF) at 0.56 over the past year. Correlations are computed from daily closing-price returns aligned by trading day.

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STOCKS

Single-name peers

Ticker	Name	Sub-industry	1Y	3Y	5Y	10Y
FTRE	Fortrea	Biotechnology	0.48	0.36	0.34	—
VCEL	Vericel	Biotechnology	0.37	0.32	0.38	0.31
INCY	Incyte	Biotechnology	0.29	0.22	0.25	0.29
LGND	Ligand Pharmaceuticals, Inc.	Biotechnology	0.25	0.29	0.30	0.33
KRYS	Krystal Biotech	Biotechnology	0.24	0.23	0.21	0.23
BMRN	BioMarin Pharmaceutical	Biotechnology	0.24	0.27	0.31	0.33
HALO	Halozyme	Biotechnology	0.24	0.24	0.26	0.31
VRTX	Vertex Pharmaceuticals	Biotechnology	0.23	0.22	0.22	0.30
MRNA	Moderna Inc.	Biotechnology	0.22	0.22	0.27	0.23
EXEL	Exelixis	Biotechnology	0.21	0.15	0.21	0.26
ADMA	ADMA Biologics, Inc.	Biotechnology	0.21	0.23	0.26	0.19
CYTK	Cytokinetics	Biotechnology	0.21	0.18	0.23	0.24
AMGN	Amgen Inc.	Biotechnology	0.20	0.22	0.19	0.26
SRPT	Sarepta Therapeutics	Biotechnology	0.19	0.18	0.21	0.23
ROIV	Roivant Sciences	Biotechnology	0.19	0.26	0.23	—
ALNY	Alnylam Pharmaceuticals	Biotechnology	0.18	0.17	0.21	0.26
GILD	Gilead Sciences	Biotechnology	0.17	0.14	0.16	0.22
TGTX	TG Therapeutics, Inc.	Biotechnology	0.17	0.19	0.26	0.26
XNCR	Xencor Inc	Biotechnology	0.16	0.27	0.29	0.32
VIR	Vir Biotechnology, Inc.	Biotechnology	0.16	0.25	0.29	0.19
BIIB	Biogen Inc.	Biotechnology	0.16	0.26	0.25	0.23
NBIX	Neurocrine Biosciences	Biotechnology	0.15	0.23	0.24	0.28
ARWR	Arrowhead Pharmaceuticals	Biotechnology	0.15	0.31	0.36	0.30
RCUS	Arcus Biosciences, Inc.	Biotechnology	0.15	0.24	0.27	0.27
HRMY	Harmony Biosciences Holdings, Inc.	Biotechnology	0.13	0.19	0.23	0.20
REGN	Regeneron Pharmaceuticals	Biotechnology	0.12	0.24	0.26	0.30
PTGX	Protagonist Therapeutics, Inc.	Biotechnology	0.07	0.07	0.13	0.12
UTHR	United Therapeutics	Biotechnology	-0.00	0.09	0.10	0.19

ETFS

Fund stand-ins

An ETF is generally not 'substantially identical' to a single stock, which is why funds are the standard wash-sale-aware replacement.

Ticker	Name	Focus	Match	1Y	3Y	5Y	10Y
ARKG	ARK Genomic Revolution ETF	Genomics (Active)	INDUSTRY	0.56	0.53	0.57	0.56
IBB	iShares Biotechnology ETF	Biotechnology	INDUSTRY	0.44	0.51	0.57	0.56
FHLC	Fidelity MSCI Health Care ETF	Health Care Sector	SECTOR	0.42	0.46	0.50	0.51
VHT	Vanguard Health Care ETF	Health Care Sector	SECTOR	0.42	0.46	0.51	0.51
IYH	iShares US Healthcare ETF	Health Care Sector	SECTOR	0.40	0.44	0.48	0.49
IHI	iShares Medical Devices ETF	Medical Devices	SUB-IND	0.38	0.41	0.50	0.51
XLV	Health Care Select Sector SPDR	Health Care Sector	SECTOR	0.37	0.42	0.45	0.46
XBI	SPDR S&P Biotech ETF	Biotechnology (Equal Wt)	INDUSTRY	0.36	0.45	0.49	0.51
XPH	SPDR S&P Pharmaceuticals	Pharmaceuticals (Equal Wt)	INDUSTRY	0.35	0.43	0.48	0.48
IHE	iShares US Pharmaceuticals ETF	Pharmaceuticals	INDUSTRY	0.29	0.34	0.38	0.44
PPH	VanEck Pharma ETF	Pharmaceuticals	INDUSTRY	0.27	0.30	0.34	0.39
IHF	iShares Health Care Providers	Health Care Providers	INDUSTRY	0.17	0.23	0.30	0.33

NEXT STEPS

Harvesting a loss in RGEN?

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Replacement research for RGEN's peers

FTRE VCEL INCY LGND KRYS BMRN HALO VRTX MRNA EXEL ADMA CYTK AMGN SRPT ROIV ALNY GILD TGTX XNCR VIR BIIB NBIX ARWR RCUS HRMY REGN PTGX UTHR

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Method: Pearson correlation of daily closing-price returns, Yahoo Finance data, series aligned by trading day, refreshed weekly. A cell is blank when overlapping history covers less than 60% of its window. Correlation is descriptive, not predictive. Wash-sale treatment depends on facts and circumstances — confirm with a tax professional. Not investment advice.