GMIHX

Active

GMO MAC Implementation Fund

Category: US Bond (5,386 funds)

Expense Ratio

0.02%

Annual Cost per $10K

$2.00

30-Year Fee Drag per $10K

$426

at 7% annual return

Fund Type

Mutual Fund

Active

Asset Allocation

US Bond

88%

Cash

12%

Fee Comparison

GMIHX

0.02%

US Bond average

0.76%

US Bond cheapest

ABIMX

0.00%

Index benchmark

0.03%

97% cheaper than category average

Historical Returns

Monthly total returns (dividends reinvested) from SEC N-PORT filings · As of August 2025 · Updated quarterly

+6.00%4 months

Compare to

Fee Impact Calculator

Investment

Years

Annual Return

GMIHX at 0.02%$378,484

At index rates (0.03%)$377,424

Zero fees (theoretical)$380,613

Total fee drag$2,129

Savings vs index fund+$1,060

Similar Funds (100)

Ranked by allocation similarity weighted by fund size · Returns (dividends reinvested) from SEC N-PORT filings · As of August 2025

Ticker	Name	ER	1yr	3yr	5yr
GMIHX	GMO MAC Implementation Fund	0.02%	—	—	—
VTBIX	VANGUARD TOTAL BOND MARKET II INDEX FUND	0.09%	+3.06%	+2.97%	-0.73%
BND	VANGUARD TOTAL BOND MARKET INDEX FUND	0.03%	+3.20%	+3.07%	-0.65%
AGG	iShares Core U.S. Aggregate Bond ETF	0.03%	+3.13%	+3.01%	-0.68%
AIBAX	Intermediate Bond Fund of America	0.65%	+4.50%	+3.52%	+0.82%
VWALX	VANGUARD HIGH-YIELD TAX-EXEMPT FUND	0.09%	-0.94%	+3.22%	+0.98%
MBB	iShares MBS ETF	0.04%	+3.34%	+2.81%	-0.45%
FFTSX	Short-Term Bond Fund of America	0.35%	+5.04%	+4.14%	+1.76%
FUBFX	Fidelity U.S. Bond Index Fund	0.03%	—	—	—
VWIUX	VANGUARD INTERMEDIATE-TERM TAX-EXEMPT FUND	0.09%	+1.49%	+3.21%	+0.94%
AMUSX	U.S. Government Securities Fund	0.65%	+3.55%	+1.78%	-0.67%
ABNDX	Bond Fund of America	1.04%	+3.22%	+2.75%	-0.49%
IBTF	iShares iBonds Dec 2025 Term Treasury ETF	0.07%	+4.40%	+3.56%	+0.44%
VWLUX	VANGUARD LONG-TERM TAX-EXEMPT FUND	0.09%	-0.91%	+2.90%	+0.42%
DDTRX	DoubleLine Total Return Bond Fund	0.43%	+4.32%	+3.38%	+0.33%
TLT	iShares 20+ Year Treasury Bond ETF	0.15%	-6.49%	-4.72%	-9.33%
VFIIX	VANGUARD GNMA FUND	0.21%	+3.50%	+2.73%	-0.19%
SPMB	SPDR(R) Portfolio Mortgage Backed Bond ETF	0.04%	+3.29%	+2.80%	-0.52%
FLIBX	American Funds Inflation Linked Bond Fund	0.36%	+5.34%	+1.51%	+0.86%
DOXIX	Dodge & Cox Income Fund	0.33%	+3.58%	+4.67%	—
AFFMX	American Funds Mortgage Fund	0.68%	+4.14%	+2.79%	+0.23%
BSV	VANGUARD SHORT-TERM BOND INDEX FUND	0.03%	+4.75%	+4.15%	+1.31%
JITAX	JPMorgan National Municipal Income Fund	0.40%	+0.78%	+2.44%	+0.24%
SPAB	SPDR Portfolio Aggregate Bond ETF	0.03%	+3.14%	+2.99%	-0.70%
MUB	iShares National Muni Bond ETF	0.05%	-0.16%	+2.41%	+0.34%
BBCPX	Bridge Builder Core Plus Bond Fund	0.16%	+4.26%	+4.16%	+0.56%
STRDX	Sterling Capital Total Return Bond Fund	0.35%	+3.42%	+3.38%	-0.17%
FSIGX	Fidelity Series Investment Grade Bond Fund	0.00%	+3.72%	+3.94%	+0.37%
TBIIX	Nuveen Bond Index Fund	0.32%	+2.98%	+2.97%	-0.76%
FIFZX	Fidelity Series Bond Index Fund	0.00%	+3.08%	+3.01%	-0.71%
TRAZX	T. Rowe Price Institutional Floating Rate Fund$1M min	0.02%	+7.98%	+9.42%	+7.21%
IEF	iShares 7-10 Year Treasury Bond ETF	0.15%	+2.80%	+1.63%	-2.35%
VMLUX	VANGUARD LIMITED-TERM TAX-EXEMPT FUND	0.09%	+3.64%	+3.56%	+1.70%
STIP	iShares 0-5 Year TIPS Bond ETF	0.03%	+6.65%	+4.43%	+3.73%
VIITX	VANGUARD INSTITUTIONAL INTERMEDIATE-TERM BOND FUND$100M min	0.02%	+4.70%	+4.09%	+0.88%
SRLN	SPDR Blackstone Senior Loan ETF	0.70%	+7.75%	+7.37%	+5.40%
TRIZX	T. Rowe Price Floating Rate Fund	0.02%	+7.94%	+9.42%	+7.25%
SCOAX	SIIT CORE FIXED INCOME FUND	0.37%	+3.26%	+3.37%	-0.51%
DFFGX	DFA SHORT-TERM GOVERNMENT PORTFOLIO$1M min	0.17%	+4.39%	+4.31%	+1.39%
BKLN	Invesco Senior Loan ETF	0.65%	+7.19%	+8.20%	+5.50%
BIV	VANGUARD INTERMEDIATE-TERM BOND INDEX FUND	0.03%	+4.47%	+3.85%	-0.38%
JBFRX	Bond Fund	0.46%	+3.37%	+3.61%	-0.09%
CCBFX	Capital Group Central Corporate Bond Fund	—	+3.73%	+4.53%	—
LQD	iShares iBoxx $ Investment Grade Corporate Bond ETF	0.14%	+3.36%	+4.42%	-0.63%
BAGIX	Baird Aggregate Bond Fund$1M min	0.30%	+3.35%	+3.65%	-0.35%
TRVZX	T. Rowe Price New Income Fund, Inc.	0.32%	+3.45%	+2.95%	-0.33%
IUSB	iShares Core Universal USD Bond ETF	0.06%	+3.71%	+3.68%	-0.19%
VMBS	VANGUARD MORTGAGE-BACKED SECURITIES INDEX FUND	0.06%	+3.74%	+3.02%	-0.33%
FFRAX	Fidelity Advisor Floating Rate High Income Fund	0.73%	-9.97%	-18.31%	-21.22%
VCMDX	VANGUARD COMMODITY STRATEGY FUND	0.16%	+13.87%	+0.42%	+12.32%
SSAFX	State Street Aggregate Bond Index Portfolio	0.02%	+3.13%	+2.99%	-0.76%
WFBIX	iShares U.S. Aggregate Bond Index Fund	0.05%	+3.03%	+3.01%	-0.70%
TIMTX	Transamerica Intermediate Muni	0.49%	+0.00%	+2.69%	+0.04%
VWESX	VANGUARD LONG-TERM INVESTMENT-GRADE FUND	0.21%	-0.59%	+1.64%	-3.71%
DHEAX	DIAMOND HILL SHORT DURATION SECURITIZED BOND	0.82%	+7.30%	+7.24%	-2.40%
FBND	Fidelity Total Bond ETF	0.36%	+3.85%	+4.04%	+0.36%
FUTBX	Fidelity SAI U.S. Treasury Bond Index Fund	0.03%	+2.42%	+2.09%	-1.47%
SCHZ	Schwab U.S. Aggregate Bond ETF	0.03%	+3.11%	+2.98%	-0.73%
SUB	iShares Short-Term National Muni Bond ETF	0.07%	+3.21%	+2.88%	+1.28%
JCPPX	JPMorgan Core Plus Bond Fund	1.14%	+3.47%	+3.44%	-0.03%
RHYTX	Tax-Exempt High Yield Bond Fund	0.55%	-1.87%	+2.94%	+1.28%
TBBWX	Nuveen Core Bond Fund	0.29%	+3.61%	+3.99%	+0.25%
QCBMFX	College Retirement Equities Fund - Core Bond Account	—	+3.63%	+4.36%	—
FTLTX	Fidelity Series Long-Term Treasury Bond Index Fund	0.00%	-4.49%	-3.28%	-8.18%
JCPB	JPMorgan Core Plus Bond ETF	0.38%	+4.04%	+4.29%	+0.51%
AGZ	iShares Agency Bond ETF	0.20%	+4.09%	+3.59%	+0.63%
HIGFX	American High Income Trust	0.32%	+8.36%	+9.55%	+6.83%
BCI	abrdn Bloomberg All Commodity Strategy K-1 Free ETF	0.26%	+11.42%	-1.19%	+9.89%
ACBPX	Diversified Bond Fund	0.01%	+3.08%	+2.91%	-0.49%
THRLX	Thornburg Limited Term Income Fund	0.42%	+5.39%	+5.19%	+1.89%
FIQZX	Fidelity Intermediate Municipal Income Fund	0.31%	+1.67%	+3.05%	+1.03%
BBTBX	Bridge Builder Core Bond Fund	0.12%	+3.63%	+3.76%	-0.02%
VGLT	VANGUARD LONG-TERM TREASURY INDEX FUND	0.06%	-4.52%	-3.29%	-8.19%
VWSUX	VANGUARD ULTRA-SHORT-TERM TAX-EXEMPT FUND	0.09%	+3.66%	+3.55%	+1.97%
JAGBX	Select Bond Trust	0.60%	+3.22%	+3.31%	-0.40%
FSMTX	Fidelity SAI Total Bond Fund	0.29%	+4.17%	+4.37%	+0.79%
BBMUX	Bridge Builder Municipal Bond Fund	0.12%	+1.67%	+3.34%	+1.19%
MFGBX	MFS Government Securities Fund	0.77%	+1.79%	+1.17%	-2.03%
HFKFX	Hartford Schroders Tax-Aware Bond Fund	0.46%	-2.17%	+2.22%	-0.20%
VCLT	VANGUARD LONG-TERM CORPORATE BOND INDEX FUND	0.06%	+0.56%	+2.96%	-2.60%
FSAJX	Fidelity SAI Tax-Free Bond Fund	0.25%	-0.14%	+3.15%	+0.80%
MISHX	AB Municipal Income Shares	0.15%	+0.14%	+3.65%	+2.20%
VFIRX	VANGUARD SHORT-TERM TREASURY FUND	0.10%	+4.42%	+3.48%	+1.20%
EAGG	iShares ESG Aware U.S. Aggregate Bond ETF	0.10%	+3.05%	+2.92%	-0.79%
MMHEX	NYLI MacKay High Yield Muni Bond Fund	0.55%	-2.44%	+3.14%	+1.36%
MBFAX	Allspring Core Bond Fund	0.65%	+3.06%	+3.01%	+1.77%
DDCFX	DoubleLine Core Fixed Income Fund	0.50%	+4.25%	+3.94%	+0.50%
MTBDX	NYLI MacKay Tax Free Bond Fund	0.43%	-0.10%	+2.90%	+0.44%
CIBRX	Columbia Total Return Bond Fund	0.49%	+3.82%	+3.42%	-0.39%
BLV	VANGUARD LONG-TERM BOND INDEX FUND	0.03%	-2.04%	-0.01%	-5.07%
FFLQX	Franklin Federal Limited-Term Tax-Free Income Fund	0.38%	+3.22%	+3.46%	+1.29%
GUSTX	GMO U.S. Treasury Fund	0.21%	+4.61%	+4.91%	+2.91%
SWAGX	Schwab U.S. Aggregate Bond Index Fund	0.04%	+3.16%	+2.96%	-0.76%
FBNDX	Fidelity Investment Grade Bond Fund	0.75%	+3.44%	+3.44%	-0.20%
MFIAX	MFS Municipal Income Fund	0.44%	-1.11%	+2.62%	+0.52%
SLDBX	SIIT LIMITED DURATION BOND FUND	0.32%	+5.05%	+4.67%	+2.19%
GNMA	iShares GNMA Bond ETF	0.10%	+3.27%	+2.66%	-0.31%
DDLDX	DoubleLine Low Duration Bond Fund	0.70%	+5.18%	+5.42%	+3.07%
FCAVX	Franklin California Tax-Free Income Fund	0.60%	-1.83%	+2.42%	+0.09%
GAAAX	GMO Opportunistic Income Fund	0.58%	+5.51%	+5.75%	—
GAJPX	Goldman Sachs Dynamic Municipal Income Fund	0.38%	+0.27%	+3.29%	+1.37%

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