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Data as of Oct 28, 2026.

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MBB vs VTIP: Differences, Returns & Fees

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MBB's duration was 5.7 years on Aug 31, 2026 and VTIP's 2.3 on Jun 30, 2026; VTIP charges 0.03% to MBB's 0.04%.

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Net assets: $35.5bn on Oct 28, 2026 for iShares MBS ETF, and $20.9bn on Sep 30, 2026 for Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares.

MBB on its own →VTIP on its own →
At a glance
−0.8%
MBB total return, 1 year
+2.2%
VTIP total return, 1 year
0.04%
MBB expense ratio
0.03%
VTIP expense ratio

Pair scorecard

VTIP costs 0.01 points a year less; their one-year returns differ by 3.0 points; MBB is 1.7 times larger.

MBB vs VTIP: Differences, Returns & Fees
MeasureMBBVTIP
Return
Total return, 1 year−0.8%+2.2%
Benchmark
What it tracksBloomberg U.S. MBS IndexBloomberg U.S. Treasury Inflation-Protected Securities (TIPS) 0-5 Years Index
Cost and size
Expense ratio0.04%0.03%
Net assets, as of Sep 30, 2026$36.2bn$20.9bn
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 VTIP 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 VTIP
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 VTIP
TSY INFL IX N/B, due Oct 15, 2030 5.39%
TSY INFL IX N/B, due Oct 15, 2029 5.33%
TSY INFL IX N/B, due Apr 15, 2030 5.30%
TSY INFL IX N/B, due Apr 15, 2029 5.14%
TSY INFL IX N/B, due Oct 15, 2028 4.97%
TSY INFL IX N/B, due Oct 15, 2026 4.83%
TSY INFL IX N/B, due Oct 15, 2027 4.83%
TSY INFL IX N/B, due Apr 15, 2027 4.74%
Check overlap with more funds →

Side by side

MBB iShares MBS ETF VTIP Vanguard Short-Term Inflation-Protected Securities Index Fund ETF Shares
Where it sits Bond ETF Bond ETF
Issuer iShares Vanguard
What it is Tracks an index of mortgage-backed securities Tracks an index of Short-Term Inflation-Protected Securities
Total return, 1 year −0.8% +2.2%
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% 0.03%
Holdings 10813 26
Net assets, MBB as of Oct 28, 2026 and VTIP as of Sep 30, 2026 $35.5bn $20.9bn

MBB and VTIP 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.

VTIP

VTIP tracks an index of Short-Term Inflation-Protected Securities. Over the year to Oct 28, 2026 it returned +2.2% with distributions reinvested. The prospectus expense ratio is 0.03% a year.

Questions people ask

Which returned more over the last year, MBB or VTIP?
In the year to Oct 28, 2026, with distributions reinvested, MBB returned −0.8% and VTIP +2.2%.
Which is cheaper, MBB or VTIP?
VTIP is cheaper, by 0.01 percentage points a year. That is about $1 on $10,000 held for a year. Fees come from each fund's prospectus.
Other comparisons
BINC vs MBBMBB vs SCHPBNDX vs MBBAGG vs MBBSTIP vs VTIPBINC vs VTIPSCHP vs VTIPTIP vs VTIP
Where to next
MBB on its own →VTIP on its own →Hold both: look the portfolio through →Rankings →MBB dividend history →MBB holdings →VTIP dividend history →VTIP holdings →Standards and sources →
Sources and dates
MBB filings on SEC EDGAR ↗
MBB prospectus with the expense ratio (SEC) ↗
iShares page for MBB ↗
VTIP filings on SEC EDGAR ↗
VTIP prospectus with the expense ratio (SEC) ↗
Vanguard page for VTIP ↗

Links are sources, not endorsements. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, MBB against VTIP, data as of Oct 28, 2026. https://etfiq.com/compare/any/mbb-vs-vtip

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Free to use with attribution for data ETFIQ computes; issuer data stays under its owner's terms.