Tax-loss harvesting alternatives for GFS

Among the 31 Semiconductors peers screened, DIOD (Diodes Incorporated) has tracked GFS most closely over the past year, with a return correlation of 0.68. The strongest fund stand-in is XSD (SPDR S&P Semiconductor ETF) at 0.73 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
DIOD	Diodes Incorporated	Semiconductors	0.68	0.65	0.65	—
LSCC	Lattice Semiconductor	Semiconductors	0.68	0.62	0.63	—
ON	ON Semiconductor	Semiconductors	0.65	0.64	0.66	—
MPWR	Monolithic Power Systems	Semiconductors	0.62	0.58	0.59	—
AMKR	Amkor Technology	Semiconductors	0.62	0.59	0.58	—
SYNA	Synaptics	Semiconductors	0.62	0.62	0.63	—
POWI	Power Integrations	Semiconductors	0.62	0.63	0.62	—
ALGM	Allegro MicroSystems	Semiconductors	0.61	0.60	0.59	—
ADI	Analog Devices	Semiconductors	0.59	0.61	0.62	—
MCHP	Microchip Technology	Semiconductors	0.59	0.62	0.64	—
MTSI	MACOM Technology Solutions	Semiconductors	0.59	0.55	0.56	—
NXPI	NXP Semiconductors	Semiconductors	0.55	0.62	0.64	—
RMBS	Rambus	Semiconductors	0.55	0.58	0.55	—
AOSL	Alpha and Omega Semiconductor, Ltd.	Semiconductors	0.55	0.48	0.51	—
MU	Micron Technology	Semiconductors	0.54	0.52	0.51	—
PENG	Penguin Solutions, Inc.	Semiconductors	0.53	0.48	0.49	—
INTC	Intel Corp.	Semiconductors	0.53	0.54	0.51	—
SMTC	Semtech	Semiconductors	0.53	0.46	0.45	—
MRVL	Marvell Technology	Semiconductors	0.51	0.49	0.54	—
SITM	SiTime	Semiconductors	0.51	0.50	0.52	—
TXN	Texas Instruments	Semiconductors	0.50	0.57	0.58	—
QCOM	Qualcomm Inc.	Semiconductors	0.49	0.54	0.58	—
MXL	MaxLinear, Inc.	Semiconductors	0.47	0.46	0.48	—
SWKS	Skyworks Solutions	Semiconductors	0.47	0.55	0.58	—
CRUS	Cirrus Logic	Semiconductors	0.46	0.49	0.51	—
QRVO	Qorvo	Semiconductors	0.45	0.50	0.53	—
AMD	Advanced Micro Devices	Semiconductors	0.43	0.49	0.54	—
OLED	Universal Display	Semiconductors	0.39	0.49	0.52	—
AVGO	Broadcom Inc.	Semiconductors	0.37	0.41	0.46	—
NVDA	NVIDIA Corp.	Semiconductors	0.29	0.34	0.46	—
SLAB	Silicon Labs	Semiconductors	0.15	0.42	0.48	—

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
XSD	SPDR S&P Semiconductor ETF	Semiconductors (Equal Wt)	INDUSTRY	0.73	0.73	0.72	—
PSI	Invesco Semiconductors ETF	Semiconductors	INDUSTRY	0.72	0.69	0.70	—
SOXX	iShares Semiconductor ETF	Semiconductors	INDUSTRY	0.69	0.68	0.69	—
SMH	VanEck Semiconductor ETF	Semiconductors	INDUSTRY	0.66	0.63	0.66	—
XLK	Technology Select Sector SPDR	Tech Sector	SECTOR	0.60	0.61	0.63	—
FTEC	Fidelity MSCI Info Tech ETF	Tech Sector	SECTOR	0.58	0.60	0.62	—
VGT	Vanguard Info Tech ETF	Tech Sector	SECTOR	0.58	0.60	0.62	—
QQQ	Invesco QQQ Trust	Nasdaq 100	BROAD	0.57	0.60	0.62	—
QQQM	Invesco Nasdaq 100 ETF	Nasdaq 100	BROAD	0.57	0.60	0.62	—
HACK	ETFMG Prime Cyber Security	Cybersecurity	SUB-IND	0.22	0.40	0.46	—
BUG	Global X Cybersecurity ETF	Cybersecurity	SUB-IND	0.17	0.35	0.43	—
IGV	iShares Expanded Tech-Software	Software	INDUSTRY	0.09	0.33	0.44	—

NEXT STEPS

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Replacement research for GFS's peers

DIOD LSCC ON MPWR AMKR SYNA POWI ALGM ADI MCHP MTSI NXPI RMBS AOSL MU PENG INTC SMTC MRVL SITM TXN QCOM MXL SWKS CRUS QRVO AMD OLED AVGO NVDA SLAB

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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.