Tax-loss harvesting alternatives for RMBS

Among the 31 Semiconductors peers screened, MPWR (Monolithic Power Systems) has tracked RMBS 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 0.77 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
MPWR	Monolithic Power Systems	Semiconductors	0.68	0.67	0.66	0.65
AMKR	Amkor Technology	Semiconductors	0.63	0.67	0.65	0.59
PENG	Penguin Solutions, Inc.	Semiconductors	0.61	0.55	0.55	0.50
AOSL	Alpha and Omega Semiconductor, Ltd.	Semiconductors	0.60	0.56	0.56	0.52
MTSI	MACOM Technology Solutions	Semiconductors	0.60	0.63	0.63	0.52
MRVL	Marvell Technology	Semiconductors	0.60	0.60	0.60	0.59
SYNA	Synaptics	Semiconductors	0.60	0.59	0.58	0.51
LSCC	Lattice Semiconductor	Semiconductors	0.59	0.58	0.60	0.54
INTC	Intel Corp.	Semiconductors	0.58	0.51	0.50	0.50
MU	Micron Technology	Semiconductors	0.58	0.61	0.61	0.59
SMTC	Semtech	Semiconductors	0.57	0.52	0.52	0.54
ON	ON Semiconductor	Semiconductors	0.57	0.57	0.59	0.58
POWI	Power Integrations	Semiconductors	0.56	0.58	0.60	0.59
ALGM	Allegro MicroSystems	Semiconductors	0.56	0.56	0.59	—
AMD	Advanced Micro Devices	Semiconductors	0.56	0.61	0.60	0.52
GFS	GlobalFoundries	Semiconductors	0.55	0.58	0.55	—
ADI	Analog Devices	Semiconductors	0.54	0.60	0.60	0.60
DIOD	Diodes Incorporated	Semiconductors	0.52	0.55	0.59	0.58
MXL	MaxLinear, Inc.	Semiconductors	0.50	0.51	0.53	0.53
MCHP	Microchip Technology	Semiconductors	0.50	0.56	0.59	0.59
NXPI	NXP Semiconductors	Semiconductors	0.49	0.58	0.59	0.56
SITM	SiTime	Semiconductors	0.48	0.53	0.53	0.49
QCOM	Qualcomm Inc.	Semiconductors	0.48	0.57	0.56	0.53
CRUS	Cirrus Logic	Semiconductors	0.48	0.50	0.51	0.50
AVGO	Broadcom Inc.	Semiconductors	0.46	0.54	0.55	0.55
NVDA	NVIDIA Corp.	Semiconductors	0.45	0.51	0.53	0.51
TXN	Texas Instruments	Semiconductors	0.45	0.52	0.54	0.56
SWKS	Skyworks Solutions	Semiconductors	0.38	0.46	0.50	0.53
OLED	Universal Display	Semiconductors	0.37	0.50	0.50	0.45
QRVO	Qorvo	Semiconductors	0.36	0.45	0.48	0.51
SLAB	Silicon Labs	Semiconductors	0.19	0.44	0.47	0.51

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	0.77	0.79	0.76	0.75
SOXX	iShares Semiconductor ETF	Semiconductors	INDUSTRY	0.76	0.77	0.75	0.73
SMH	VanEck Semiconductor ETF	Semiconductors	INDUSTRY	0.75	0.75	0.73	0.71
PSI	Invesco Semiconductors ETF	Semiconductors	INDUSTRY	0.75	0.77	0.76	0.74
XLK	Technology Select Sector SPDR	Tech Sector	SECTOR	0.68	0.71	0.66	0.64
FTEC	Fidelity MSCI Info Tech ETF	Tech Sector	SECTOR	0.68	0.70	0.66	0.64
VGT	Vanguard Info Tech ETF	Tech Sector	SECTOR	0.68	0.70	0.66	0.64
QQQM	Invesco Nasdaq 100 ETF	Nasdaq 100	BROAD	0.65	0.68	0.62	—
QQQ	Invesco QQQ Trust	Nasdaq 100	BROAD	0.65	0.68	0.62	0.61
HACK	ETFMG Prime Cyber Security	Cybersecurity	SUB-IND	0.25	0.44	0.45	0.49
IGV	iShares Expanded Tech-Software	Software	INDUSTRY	0.19	0.42	0.45	0.49
BUG	Global X Cybersecurity ETF	Cybersecurity	SUB-IND	0.18	0.37	0.39	0.43

NEXT STEPS

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Replacement research for RMBS's peers

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