Which returned more over the last year, SPMB or VMBS?

In the year to Oct 9, 2026, with distributions reinvested, SPMB returned −1.4% and VMBS −0.9%.

Which is cheaper, SPMB or VMBS?

VMBS 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.

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SPMB vs VMBS: Differences, Returns & Fees

SPMB's duration was 5.5 years on Jun 30, 2026 and VMBS's 5.2 on May 31, 2026; VMBS charges 0.03% to SPMB's 0.04%. Net assets: $6.8bn on Oct 8, 2026 for State Street SPDR Portfolio Mortgage Backed Bond ETF, and $15.5bn on Sep 30, 2026 for Vanguard Mortgage-Backed Securities ETF.

VMBS costs 0.01 points a year less; their one-year returns differ by 0.5 points; VMBS is 2.3 times larger.

	SPMB	VMBS
Expense ratio	0.04%	0.03%
Net assets, as of Sep 30, 2026	$6.8bn	$15.5bn
Total return, 1 year	−1.4%	−0.9%
What it tracks	Bloomberg U.S. MBS Index ?	not read by ETFIQ
Holdings in common	21%
Below its high	4.7%, high on Feb 27, 2026	4.3%, high on Feb 27, 2026

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

−1.4%

SPMB total return, 1 year

−0.9%

VMBS total return, 1 year

0.04%

SPMB expense ratio

0.03%

VMBS expense ratio

What they hold in common

By the books each fund has filed, SPMB and VMBS hold 21% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated May 31, 2026 and Jun 30, 2026.

50%

half

21% in common

Positions both hold, largest shared weight first

Holding SPMB VMBS

Ginnie Mae, due Jul 20, 2056 0.44% 0.36%

Ginnie Mae II Pool, due Jan 20, 2056 0.41% 0.31%

Freddie Mac Pool, due May 1, 2056 0.42% 0.27%

Freddie Mac Pool, due Feb 1, 2056 1.17% 0.24%

Freddie Mac Pool, due Oct 1, 2055 0.41% 0.24%

Freddie Mac Pool, due Feb 1, 2051 0.29% 0.23%

Freddie Mac Pool, due Nov 1, 2050 0.33% 0.21%

Ginnie Mae II Pool, due Jan 20, 2051 0.28% 0.20%

Ginnie Mae II Pool, due Jan 20, 2052 0.30% 0.20%

Freddie Mac Pool, due Jan 1, 2051 0.35% 0.20%

Fannie Mae Pool, due Jul 1, 2051 0.30% 0.18%

Fannie Mae Pool, due Apr 1, 2051 0.26% 0.18%

Only in SPMB

Fannie Mae Pool, due Feb 1, 2052 0.79%

Freddie Mac Pool, due May 1, 2052 0.61%

Fannie Mae Pool, due Feb 1, 2055 0.49%

Fannie Mae Pool, due Nov 1, 2051 0.47%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2056 0.46%

Fannie Mae Pool, due Feb 1, 2052 0.45%

Freddie Mac Pool, due Feb 1, 2052 0.44%

Freddie Mac Pool, due Mar 1, 2054 0.44%

Only in VMBS

FNCL 2 6/26, due Jun 11, 2026 0.52%

G2 MB0025, due Nov 20, 2054 0.32%

FN CC2762, due Mar 1, 2056 0.29%

G2 MB0936, due Feb 20, 2056 0.29%

G2SF 5.5 6/26, due Jun 22, 2026 0.29%

G2 MB0024, due Nov 20, 2054 0.28%

FR SD4155, due Feb 1, 2052 0.27%

FR SD8146, due May 1, 2051 0.26%

Check overlap with more funds →

On the same fields

SPMB

State Street SPDR Portfolio Mortgage Backed Bond ETF

VMBS

Vanguard Mortgage-Backed Securities ETF

Where it sits Bond ETF Bond ETF

Issuer State Street Vanguard

What it is Tracks an index Tracks an index

Total return, 1 year −1.4% −0.9%

S&P 500 over the same days +17.3% +17.3%

Gap to the S&P 500 −18.7 pts −18.1 pts

Expense ratio 0.04% 0.03%

Holdings 2756 4890

Net assets, SPMB as of Oct 8, 2026 and VMBS as of Sep 30, 2026 $6.8bn $15.5bn

SPMB and VMBS on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

SPMB in plain words

SPMB tracks an index. The prospectus expense ratio is 0.04% a year. It sat 4.7% below its high of Feb 27, 2026 on Oct 9, 2026.

Over the year to Oct 9, 2026 it returned −1.4% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg U.S. MBS Index ?.

VMBS in plain words

VMBS tracks an index. Over the year to Oct 9, 2026 it returned −0.9% with distributions reinvested. The prospectus expense ratio is 0.03% a year. It sat 4.3% below its high of Feb 27, 2026 on Oct 9, 2026.

Questions people ask

Which returned more over the last year, SPMB or VMBS?: In the year to Oct 9, 2026, with distributions reinvested, SPMB returned −1.4% and VMBS −0.9%.
Which is cheaper, SPMB or VMBS?: VMBS 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

MBB vs SPMB FSEC vs SPMB JMTG vs SPMB JMBS vs SPMB FSEC vs VMBS PMBS vs VMBS MBB vs VMBS JMTG vs VMBS

SPMB on its own →VMBS on its own →Hold both: look the portfolio through →Rankings →Standards and sources →

Where these figures came from

SPMB filings on SEC EDGAR ↗SPMB prospectus with the expense ratio (SEC) ↗State Street website ↗VMBS filings on SEC EDGAR ↗VMBS prospectus with the expense ratio (SEC) ↗Vanguard page for VMBS ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. 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, SPMB against VMBS, data as of Oct 9, 2026. https://etfiq.com/compare/any/spmb-vs-vmbs

Open data

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