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

In the year to Oct 9, 2026, with distributions reinvested, PMBS returned −2.0% and SPMB −1.4%.

Which is cheaper, PMBS or SPMB?

SPMB is cheaper, by 0.67 percentage points a year. That is about $67 on $10,000 held for a year. Fees come from each fund's prospectus.

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PMBS vs SPMB: Differences, Returns & Fees

On Jun 30, 2026 PMBS's duration was 6.3 years and SPMB's 5.5; SPMB charges 0.04% to PMBS's 0.71%. Net assets: $1.4bn on Jun 30, 2026 for PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund, and $6.8bn on Oct 8, 2026 for State Street SPDR Portfolio Mortgage Backed Bond ETF.

SPMB costs 0.67 points a year less; their one-year returns differ by 0.6 points; SPMB is 5.1 times larger.

	PMBS	SPMB
Expense ratio	0.71%	0.04%
Net assets, as of Jun 30, 2026	$1.4bn	$7.1bn
Total return, 1 year	−2.0%	−1.4%
What it tracks	No index, actively managed	Bloomberg U.S. MBS Index ?
Holdings in common	3%
Below its high	5.9%, high on Feb 27, 2026	4.7%, high on Feb 27, 2026

Holdings in common uses holdings dated Jun 30, 2026.

−2.0%

PMBS total return, 1 year

−1.4%

SPMB total return, 1 year

0.71%

PMBS expense ratio

0.04%

SPMB expense ratio

What they hold in common

By the books each fund has filed, PMBS and SPMB hold 3% 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 Jun 30, 2026.

50%

half

3% in common

Positions both hold, largest shared weight first

Holding PMBS SPMB

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2056 5.26% 0.45%

Government National Mortgage Association, TBA, due Jul 20, 2056 0.49% 0.44%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2056 0.41% 0.39%

Government National Mortgage Association, TBA, due Jul 20, 2056 1.52% 0.36%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2056 0.68% 0.26%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2056 0.22% 0.63%

Government National Mortgage Association, TBA, due Jul 20, 2054 1.35% 0.21%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2041 0.34% 0.17%

Government National Mortgage Association, TBA, due Jul 20, 2056 2.05% 0.17%

Government National Mortgage Association, TBA, due Jul 20, 2056 1.07% 0.17%

Uniform Mortgage-Backed Security, TBA, due Jul 1, 2041 0.38% 0.15%

Government National Mortgage Association, TBA, due Jul 20, 2056 0.45% 0.11%

Only in PMBS

Uniform Mortgage-Backed Security, TBA, due Sep 1, 2056 7.72%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 6.94%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 3.96%

Government National Mortgage Association, due Nov 20, 2055 3.67%

Federal Home Loan Mortgage Corp., due Mar 1, 2056 3.51%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 3.22%

Uniform Mortgage-Backed Security, TBA, due Aug 1, 2056 3.17%

Government National Mortgage Association, TBA, due Aug 20, 2056 2.96%

Only in SPMB

Freddie Mac Pool, due Feb 1, 2056 1.17%

Fannie Mae Pool, due Feb 1, 2052 0.79%

Freddie Mac Pool, due Aug 1, 2055 0.76%

Freddie Mac Pool, due May 1, 2052 0.61%

Freddie Mac Pool, due Nov 1, 2054 0.55%

Ginnie Mae II Pool, due Jun 20, 2055 0.55%

Fannie Mae Pool, due Aug 1, 2052 0.51%

Fannie Mae Pool, due Feb 1, 2055 0.49%

Check overlap with more funds →

On the same fields

PMBS

PIMCO Mortgage-Backed Securities Active Exchange-Traded Fund

SPMB

State Street SPDR Portfolio Mortgage Backed Bond ETF

Where it sits Bond ETF Bond ETF

Issuer PIMCO State Street

What it is Actively managed Tracks an index

Total return, 1 year −2.0% −1.4%

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

Gap to the S&P 500 −19.3 pts −18.7 pts

Expense ratio 0.71% 0.04%

Holdings 1134 2756

Net assets, PMBS as of Jun 30, 2026 and SPMB as of Oct 8, 2026 $1.4bn $6.8bn

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

PMBS in plain words

PMBS is actively managed and tracks no index. Over the year to Oct 9, 2026 it returned −2.0% with distributions reinvested. The prospectus expense ratio is 0.71% a year. It sat 5.9% below its high of Feb 27, 2026 on Oct 9, 2026.

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 ?.

Questions people ask

Which returned more over the last year, PMBS or SPMB?: In the year to Oct 9, 2026, with distributions reinvested, PMBS returned −2.0% and SPMB −1.4%.
Which is cheaper, PMBS or SPMB?: SPMB is cheaper, by 0.67 percentage points a year. That is about $67 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

PMBS vs SMBS JMBS vs PMBS FSEC vs PMBS PMBS vs VMBS FSEC vs SPMB JMBS vs SPMB SPMB vs VMBS SMBS vs SPMB

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

Where these figures came from

PMBS filings on SEC EDGAR ↗PMBS prospectus with the expense ratio (SEC) ↗PIMCO website ↗SPMB filings on SEC EDGAR ↗SPMB prospectus with the expense ratio (SEC) ↗State Street website ↗

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, PMBS against SPMB, data as of Oct 9, 2026. https://etfiq.com/compare/any/pmbs-vs-spmb

Open data

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