MBB

ETFIndex

iShares MBS ETF

Category: US Bond (5,386 funds)

Expense Ratio

0.04%

Annual Cost per $10K

$4.00

30-Year Fee Drag per $10K

$849

at 7% annual return

Fund Type

ETF

Index

Trailing 12-Month

+3.34%

Asset Allocation

US Bond

95%

Cash

Fee Comparison

MBB

0.04%

US Bond average

0.76%

US Bond cheapest

ABIMX

0.00%

Index benchmark

0.03%

95% cheaper than category average

Historical Returns

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

+8.67%3Y

Compare to

Fee Impact Calculator

Investment

Years

Annual Return

MBB at 0.04%$376,367

At index rates (0.03%)$377,424

Zero fees (theoretical)$380,613

Total fee drag$4,245

Cost vs index fund−$1,057

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
MBB	iShares MBS ETF	0.04%	+3.34%	+2.81%	-0.45%
BND	VANGUARD TOTAL BOND MARKET INDEX FUND	0.03%	+3.20%	+3.07%	-0.65%
VTBIX	VANGUARD TOTAL BOND MARKET II INDEX FUND	0.09%	+3.06%	+2.97%	-0.73%
VWIUX	VANGUARD INTERMEDIATE-TERM TAX-EXEMPT FUND	0.09%	+1.49%	+3.21%	+0.94%
VWLUX	VANGUARD LONG-TERM TAX-EXEMPT FUND	0.09%	-0.91%	+2.90%	+0.42%
TLT	iShares 20+ Year Treasury Bond ETF	0.15%	-6.49%	-4.72%	-9.33%
AGG	iShares Core U.S. Aggregate Bond ETF	0.03%	+3.13%	+3.01%	-0.68%
MUB	iShares National Muni Bond ETF	0.05%	-0.16%	+2.41%	+0.34%
FUBFX	Fidelity U.S. Bond Index Fund	0.03%	—	—	—
VFIIX	VANGUARD GNMA FUND	0.21%	+3.50%	+2.73%	-0.19%
DDTRX	DoubleLine Total Return Bond Fund	0.43%	+4.32%	+3.38%	+0.33%
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%
VTIP	VANGUARD SHORT-TERM INFLATION-PROTECTED SECURITIES INDEX FUND	0.03%	+6.68%	+4.43%	+3.69%
VWALX	VANGUARD HIGH-YIELD TAX-EXEMPT FUND	0.09%	-0.94%	+3.22%	+0.98%
STRDX	Sterling Capital Total Return Bond Fund	0.35%	+3.42%	+3.38%	-0.17%
VMBS	VANGUARD MORTGAGE-BACKED SECURITIES INDEX FUND	0.06%	+3.74%	+3.02%	-0.33%
VGIT	VANGUARD INTERMEDIATE-TERM TREASURY INDEX FUND	0.06%	+4.09%	+3.06%	-0.56%
VTEB	VANGUARD TAX-EXEMPT BOND INDEX FUND	0.03%	-0.24%	+2.48%	+0.34%
FLIBX	American Funds Inflation Linked Bond Fund	0.36%	+5.34%	+1.51%	+0.86%
FIFZX	Fidelity Series Bond Index Fund	0.00%	+3.08%	+3.01%	-0.71%
FUTBX	Fidelity SAI U.S. Treasury Bond Index Fund	0.03%	+2.42%	+2.09%	-1.47%
SUB	iShares Short-Term National Muni Bond ETF	0.07%	+3.21%	+2.88%	+1.28%
FTLTX	Fidelity Series Long-Term Treasury Bond Index Fund	0.00%	-4.49%	-3.28%	-8.18%
AMUSX	U.S. Government Securities Fund	0.65%	+3.55%	+1.78%	-0.67%
VAIPX	VANGUARD INFLATION-PROTECTED SECURITIES FUND	0.10%	+4.70%	+2.24%	+1.19%
VGSH	VANGUARD SHORT-TERM TREASURY INDEX FUND	0.06%	+4.38%	+3.82%	+1.45%
GOVT	iShares U.S. Treasury Bond ETF	0.05%	+2.35%	+2.06%	-1.54%
SHY	iShares 1-3 Year Treasury Bond ETF	0.15%	+4.26%	+3.70%	+1.36%
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%
FIQZX	Fidelity Intermediate Municipal Income Fund	0.31%	+1.67%	+3.05%	+1.03%
AFTEX	Tax Exempt Bond Fund of America	0.27%	+0.06%	+2.86%	+0.56%
BBMUX	Bridge Builder Municipal Bond Fund	0.12%	+1.67%	+3.34%	+1.19%
MISHX	AB Municipal Income Shares	0.15%	+0.14%	+3.65%	+2.20%
SPMB	SPDR(R) Portfolio Mortgage Backed Bond ETF	0.04%	+3.29%	+2.80%	-0.52%
VFIRX	VANGUARD SHORT-TERM TREASURY FUND	0.10%	+4.42%	+3.48%	+1.20%
TIP	iShares TIPS Bond ETF	0.18%	+4.70%	+2.20%	+1.05%
USFR	WisdomTree Floating Rate Treasury Fund	0.15%	+4.59%	+4.92%	+3.05%
TBIIX	Nuveen Bond Index Fund	0.32%	+2.98%	+2.97%	-0.76%
VCADX	VANGUARD CALIFORNIA INTERMEDIATE-TERM TAX-EXEMPT FUND	0.09%	+1.64%	+3.27%	+0.89%
IEI	iShares 3-7 Year Treasury Bond ETF	0.15%	+4.26%	+3.32%	-0.22%
MTBDX	NYLI MacKay Tax Free Bond Fund	0.43%	-0.10%	+2.90%	+0.44%
JAAA	Janus Henderson AAA CLO ETF	0.21%	+5.86%	+7.03%	—
FSAJX	Fidelity SAI Tax-Free Bond Fund	0.25%	-0.14%	+3.15%	+0.80%
JBFRX	Bond Fund	0.46%	+3.37%	+3.61%	-0.09%
TFLO	iShares Treasury Floating Rate Bond ETF	0.15%	+4.57%	+4.87%	+3.03%
HIMFX	American High-Income Municipal Bond Fund	0.30%	+0.13%	+4.05%	+2.25%
GAJPX	Goldman Sachs Dynamic Municipal Income Fund	0.38%	+0.27%	+3.29%	+1.37%
FUAMX	Fidelity Intermediate Treasury Bond Index Fund	0.03%	+3.64%	+2.57%	-1.31%
AFFMX	American Funds Mortgage Fund	0.68%	+4.14%	+2.79%	+0.23%
TLH	iShares 10-20 Year Treasury Bond ETF	0.15%	-2.13%	-1.19%	-6.52%
SCHP	Schwab U.S. TIPS ETF	0.03%	+4.86%	+2.36%	+1.23%
SCHO	Schwab Short-Term U.S. Treasury ETF	0.03%	+4.39%	+3.82%	+1.45%
SPTL	SPDR Portfolio Long Term Treasury ETF	0.03%	-4.47%	-3.30%	-8.31%
MMHEX	NYLI MacKay High Yield Muni Bond Fund	0.55%	-2.44%	+3.14%	+1.36%
MFIAX	MFS Municipal Income Fund	0.44%	-1.11%	+2.62%	+0.52%
FSTDX	Fidelity Series 5+ Year Inflation-Protected Bond Index Fund	0.00%	+2.80%	+0.40%	—
FIWAX	Fidelity Limited Term Municipal Income Fund	0.25%	+3.63%	+3.35%	+1.34%
FCAVX	Franklin California Tax-Free Income Fund	0.60%	-1.83%	+2.42%	+0.09%
QCILFX	College Retirement Equities Fund - Inflation-Linked Bond Account	—	+6.12%	+4.49%	—
VFITX	VANGUARD INTERMEDIATE-TERM TREASURY FUND	0.10%	+3.90%	+2.96%	-0.45%
SCOAX	SIIT CORE FIXED INCOME FUND	0.37%	+3.26%	+3.37%	-0.51%
FIPDX	Fidelity Inflation-Protected Bond Index Fund	0.05%	+4.81%	+2.36%	+1.22%
CMPIX	Core Fixed Income Fund	0.57%	+2.92%	+2.87%	-0.77%
SCHR	Schwab Intermediate-Term U.S. Treasury ETF	0.03%	+4.09%	+3.07%	-0.57%
FFTQX	Franklin Federal Tax-Free Income Fund	0.49%	-1.01%	+2.75%	+0.36%
FSTZX	Fidelity Series 0-5 Year Inflation-Protected Bond Index Fund	0.00%	+6.64%	+4.48%	—
SHM	SPDR Nuveen ICE Short Term Municipal Bond ETF	0.20%	+2.96%	+2.56%	+0.67%
TRZUX	T. Rowe Price U.S. Treasury Long-Term Index Fund	0.07%	-4.55%	-3.57%	-8.44%
FUMBX	Fidelity Short-Term Treasury Bond Index Fund	0.03%	+4.37%	+3.72%	+0.99%
CMF	iShares California Muni Bond ETF	0.08%	-0.07%	+2.32%	-0.01%
TRLDX	T. Rowe Price Limited-Duration Inflation Focused Bond Fund, Inc.	0.30%	+6.53%	+3.63%	+3.12%
SCHZ	Schwab U.S. Aggregate Bond ETF	0.03%	+3.11%	+2.98%	-0.73%
TFI	SPDR Nuveen ICE Municipal Bond ETF	0.23%	-0.71%	+1.96%	-0.70%
SPTI	SPDR(R) Portfolio Intermediate Term Treasury ETF	0.03%	+4.10%	+3.04%	-0.58%
FTABX	Fidelity Tax-Free Bond Fund	0.25%	+0.12%	+3.04%	+0.72%
FNBGX	Fidelity Long-Term Treasury Bond Index Fund	0.03%	-4.50%	-3.30%	-8.22%
GBIL	Goldman Sachs Access Treasury 0-1 Year ETF	0.12%	+4.44%	+4.63%	+2.75%
FUENX	Fidelity Flex Municipal Income Fund	0.00%	+0.72%	+3.42%	+1.09%
FSPWX	Fidelity SAI Inflation-Protected Bond Index Fund	0.05%	+4.94%	—	—
DFIGX	DFA INTERMEDIATE GOVERNMENT FIXED INCOME PORTFOLIO$1M min	0.12%	+2.82%	+2.28%	-1.52%
SPTS	SPDR(R) Portfolio Short Term Treasury ETF	0.03%	+4.45%	+3.83%	+1.46%
CRAIX	CCM Community Impact Bond Fund	0.42%	+3.05%	+2.57%	-0.40%
JMBS	Janus Henderson Mortgage-Backed Securities ETF	0.23%	+3.30%	+3.09%	+0.23%
AIDZX	Diversified Municipal Portfolio	0.41%	+1.85%	+3.18%	+1.28%
VCLAX	VANGUARD CALIFORNIA LONG-TERM TAX-EXEMPT FUND	0.09%	-1.10%	+3.01%	+0.34%
BLV	VANGUARD LONG-TERM BOND INDEX FUND	0.03%	-2.04%	-0.01%	-5.07%
DFSMX	DFA SHORT-TERM MUNICIPAL BOND PORTFOLIO	0.19%	+3.00%	+2.84%	+1.50%
FHIGX	Fidelity Municipal Income Fund	0.43%	-0.19%	+2.84%	+0.60%
VNYUX	VANGUARD NEW YORK LONG-TERM TAX-EXEMPT FUND	0.09%	-1.08%	+3.11%	+0.49%
FBLTX	Fidelity SAI Long-Term Treasury Bond Index Fund	0.03%	-6.43%	-4.66%	-9.24%
PRTMX	T. Rowe Price Summit Municipal Intermediate Fund	0.29%	+1.43%	+2.92%	+0.80%
APISX	Short Duration Inflation Protection Bond Fund	0.05%	+6.77%	+4.04%	+3.69%
UIITX	Victory Core Plus Intermediate Bond Fund	0.41%	+3.83%	+4.41%	+1.05%
EDV	VANGUARD EXTENDED DURATION TREASURY INDEX FUND	0.05%	-13.16%	-9.14%	-13.71%
VSGBX	VANGUARD SHORT-TERM FEDERAL FUND	0.10%	+4.75%	+3.65%	+1.29%
FLTEX	Limited Term Tax Exempt Bond Fund of America	0.37%	+3.38%	+3.54%	+1.35%
MTLBX	MFS Municipal Limited Maturity Fund	0.36%	+2.45%	+2.62%	+0.60%
DBSCX	DoubleLine Selective Credit Fund$1M min	—	+7.39%	+6.09%	+4.08%

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