Tax-loss harvesting alternatives for GSK

Among the 30 Pharmaceuticals peers screened, AZN (AstraZeneca) has tracked GSK most closely over the past year, with a return correlation of 0.57. The strongest fund stand-in is PPH (VanEck Pharma ETF) at 0.69 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
AZN	AstraZeneca	Pharmaceuticals	0.57	0.54	0.53	0.55
BMY	Bristol-Myers Squibb	Pharmaceuticals	0.54	0.42	0.39	0.40
MRK	Merck & Co.	Pharmaceuticals	0.52	0.43	0.41	0.47
PFE	Pfizer Inc.	Pharmaceuticals	0.49	0.43	0.38	0.43
JNJ	Johnson & Johnson	Pharmaceuticals	0.47	0.45	0.41	0.45
LLY	Eli Lilly	Pharmaceuticals	0.43	0.32	0.32	0.37
ABBV	AbbVie Inc.	Pharmaceuticals	0.43	0.38	0.34	0.37
SNY	Sanofi S.A.	Pharmaceuticals	0.40	0.42	0.50	0.53
AMRX	Amneal Pharmaceuticals	Pharmaceuticals	0.32	0.21	0.17	0.17
VTRS	Viatris	Pharmaceuticals	0.31	0.28	0.26	0.26
INVA	Innoviva, Inc.	Pharmaceuticals	0.30	0.26	0.24	0.31
ELAN	Elanco	Pharmaceuticals	0.26	0.20	0.19	0.24
JAZZ	Jazz Pharmaceuticals	Pharmaceuticals	0.26	0.25	0.26	0.30
SUPN	Supernus Pharmaceuticals, Inc.	Pharmaceuticals	0.25	0.13	0.13	0.15
PAHC	Phibro Animal Health	Pharmaceuticals	0.25	0.19	0.19	0.25
ALKS	Alkermes plc	Pharmaceuticals	0.25	0.20	0.21	0.21
ZTS	Zoetis Inc.	Pharmaceuticals	0.25	0.28	0.27	0.37
ACAD	Acadia Pharmaceuticals	Pharmaceuticals	0.24	0.16	0.14	0.15
PTCT	PTC Therapeutics, Inc.	Pharmaceuticals	0.22	0.14	0.13	0.15
INDV	Indivior	Pharmaceuticals	0.22	0.10	0.01	0.03
PCRX	Pacira BioSciences, Inc.	Pharmaceuticals	0.22	0.11	0.15	0.18
COLL	Collegium Pharmaceutical, Inc.	Pharmaceuticals	0.21	0.19	0.14	0.16
PRGO	Perrigo	Pharmaceuticals	0.21	0.18	0.18	0.23
AMPH	Amphstar Pharmaceuticals, Inc.	Pharmaceuticals	0.21	0.20	0.19	0.24
ANIP	ANI Pharmaceuticals, Inc.	Pharmaceuticals	0.20	0.12	0.11	0.22
PBH	Prestige Consumer Healthcare	Pharmaceuticals	0.17	0.14	0.18	0.22
NVO	Novo Nordisk	Pharmaceuticals	0.13	0.22	0.25	0.31
CORT	Corcept Therapeutics Incorporated	Pharmaceuticals	0.11	0.08	0.08	0.13
OGN	Organon & Co.	Pharmaceuticals	0.04	0.20	0.21	—
LQDA	Liquidia Corporation	Pharmaceuticals	0.01	0.04	0.10	0.11

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
PPH	VanEck Pharma ETF	Pharmaceuticals	INDUSTRY	0.69	0.66	0.63	0.65
XLV	Health Care Select Sector SPDR	Health Care Sector	SECTOR	0.60	0.55	0.51	0.56
IYH	iShares US Healthcare ETF	Health Care Sector	SECTOR	0.59	0.54	0.50	0.55
IHE	iShares US Pharmaceuticals ETF	Pharmaceuticals	INDUSTRY	0.59	0.52	0.50	0.54
FHLC	Fidelity MSCI Health Care ETF	Health Care Sector	SECTOR	0.59	0.53	0.49	0.54
VHT	Vanguard Health Care ETF	Health Care Sector	SECTOR	0.59	0.53	0.49	0.54
IBB	iShares Biotechnology ETF	Biotechnology	INDUSTRY	0.46	0.42	0.36	0.42
IHI	iShares Medical Devices ETF	Medical Devices	SUB-IND	0.36	0.33	0.32	0.41
XPH	SPDR S&P Pharmaceuticals	Pharmaceuticals (Equal Wt)	INDUSTRY	0.36	0.37	0.35	0.42
XHE	SPDR S&P Health Care Equipment	Medical Devices (Equal Wt)	SUB-IND	0.32	0.27	0.25	0.33
XBI	SPDR S&P Biotech ETF	Biotechnology (Equal Wt)	INDUSTRY	0.29	0.28	0.25	0.31
IHF	iShares Health Care Providers	Health Care Providers	INDUSTRY	0.11	0.24	0.30	0.39

NEXT STEPS

Harvesting a loss in GSK?

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Replacement research for GSK's peers

AZN BMY MRK PFE JNJ LLY ABBV SNY AMRX VTRS INVA ELAN JAZZ SUPN PAHC ALKS ZTS ACAD PTCT INDV PCRX COLL PRGO AMPH ANIP PBH NVO CORT OGN LQDA

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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.