Data as of Oct 28, 2026.

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MBB vs MINT: Differences, Returns & Fees

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Over the year to Oct 28, 2026, MBB returned −0.8% to MINT's +4.2%, and MBB charges 0.04% to MINT's 0.36%.

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Net assets: $35.5bn on Oct 28, 2026 for iShares MBS ETF, and $16.4bn on Jun 30, 2026 for PIMCO Enhanced Short Maturity Active Exchange-Traded Fund.

At a glance
−0.8%
MBB total return, 1 year
+4.2%
MINT total return, 1 year
0.04%
MBB expense ratio
0.36%
MINT expense ratio

Pair scorecard

MBB costs 0.32 points a year less; their one-year returns differ by 5.0 points.

MBB vs MINT: Differences, Returns & Fees
MeasureMBBMINT
Return
Total return, 1 year−0.8%+4.2%
Benchmark
What it tracksBloomberg U.S. MBS IndexNo index, actively managed
Cost and size
Expense ratio0.04%0.36%
Net assets, MBB as of Oct 28, 2026 and MINT as of Jun 30, 2026$35.5bn$16.4bn
Holdings
Holdings in common0%

Holdings in common uses holdings dated Jun 30, 2026 and Aug 31, 2026. Method

What they share

0%

By the books each fund has filed, MBB and MINT hold 0% of their money in the same securities at the same weight. Holdings dated Jun 30, 2026 and Aug 31, 2026.

0 half 100%

half

0% in common

Positions both hold · largest shared weight first MBB MINT
Ginnie Mae I Pool, due Dec 15, 2033 0.00% 0.00%
Only in one fund ↓
Only in MBB
Ginnie Mae, due Sep 1, 2056 1.05%
Freddie Mac Pool, due May 1, 2051 0.98%
Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.85%
Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 0.70%
Ginnie Mae, due Sep 1, 2056 0.53%
Ginnie Mae II Pool, due Nov 20, 2054 0.51%
Ginnie Mae II Pool, due Oct 20, 2051 0.51%
Ginnie Mae II Pool, due Dec 20, 2051 0.50%
Only in MINT
U.S. Treasury Notes, due May 31, 2031 6.21%
Federal National Mortgage Association REMICS, due Sep 25, 2054 1.12%
Federal Home Loan Mortgage Corp. REMICS, due Nov 25, 2054 0.99%
Sumisho Air Lease Corp., due Aug 15, 2026 0.87%
HSBC Holdings PLC, due Jun 9, 2028 0.77%
AerCap Ireland Capital DAC/AerCap Global Aviation Trust, due Oct 29, 2026 0.77%
Trillium Credit Card Trust II, due Mar 26, 2031 0.71%
International Bank for Reconstruction & Development, due Sep 23, 2026 0.70%
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Side by side

MBB iShares MBS ETF MINT PIMCO Enhanced Short Maturity Active Exchange-Traded Fund
Where it sits Bond ETF Bond ETF
Issuer iShares PIMCO
What it is Tracks an index of mortgage-backed securities Actively managed
Total return, 1 year −0.8% +4.2%
Its benchmark over the same days −1.1% (SPMB) not measured
Gap to its benchmark +0.3 pts vs SPMB not measured
Expense ratio 0.04% 0.36%
Holdings 10813 977
Net assets, MBB as of Oct 28, 2026 and MINT as of Jun 30, 2026 $35.5bn $16.4bn

MBB and MINT on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
MBB

MBB tracks an index of mortgage-backed securities. Over the year to Oct 28, 2026 it returned −0.8% with distributions reinvested, against −1.1% for its benchmark, the Bloomberg U.S. MBS Index. The prospectus expense ratio is 0.04% a year.

MINT

MINT is actively managed and tracks no index. Over the year to Oct 28, 2026 it returned +4.2% with distributions reinvested. The prospectus expense ratio is 0.36% a year.

Questions people ask

Which returned more over the last year, MBB or MINT?
In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and MINT +4.2%.
Which is cheaper, MBB or MINT?
MBB is cheaper, by 0.32 percentage points a year. That is about $32 on $10,000 held for a year. Fees come from each fund's prospectus.
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ETFIQ, MBB against MINT, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-mint

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