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

In the year to Oct 9, 2026, with distributions reinvested, JMBS returned −1.8% and SPMB −1.4%.

Which is cheaper, JMBS or SPMB?

SPMB is cheaper, by 0.17 percentage points a year. That is about $17 on $10,000 held for a year. Fees come from each fund's prospectus.

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JMBS vs SPMB: Differences, Returns & Fees

JMBS's duration was 6.2 years on Jul 31, 2026 and SPMB's 5.5 on Jun 30, 2026; SPMB charges 0.04% to JMBS's 0.21%. Net assets: $6.7bn on Jul 31, 2026 for Janus Henderson Mortgage-Backed Securities ETF, and $6.8bn on Oct 8, 2026 for State Street SPDR Portfolio Mortgage Backed Bond ETF.

SPMB costs 0.17 points a year less; their one-year returns differ by 0.4 points.

	JMBS	SPMB
Expense ratio	0.21%	0.04%
Net assets, as of Jul 31, 2026	$6.7bn	$7.0bn
Total return, 1 year	−1.8%	−1.4%
What it tracks	No index, actively managed	Bloomberg U.S. MBS Index ?
Holdings in common	0%
Below its high	5.4%, high on Feb 27, 2026	4.7%, high on Feb 27, 2026

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

−1.8%

JMBS total return, 1 year

−1.4%

SPMB total return, 1 year

0.21%

JMBS expense ratio

0.04%

SPMB expense ratio

What they hold in common

By the books each fund has filed, JMBS and SPMB hold 0% 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 and Jul 31, 2026.

50%

half

0% in common

Positions both hold, largest shared weight first

Holding JMBS SPMB

Fannie Mae Pool UMBS, 30 Year, due Jan 1, 2051 0.05% 0.01%

Ginnie Mae II Pool, 30 Year, due Jun 20, 2048 0.01% 0.03%

Fannie Mae Pool UMBS, 30 Year, due Oct 1, 2047 0.02% 0.01%

Fannie Mae Pool UMBS, 30 Year, due Sep 1, 2050 0.09% 0.01%

Fannie Mae Pool UMBS, 30 Year, due Nov 1, 2048 0.02% 0.01%

Fannie Mae Pool UMBS, 30 Year, due Jun 1, 2050 0.04% 0.01%

Freddie Mac Pool UMBS, 30 Year, due Jul 1, 2049 0.02% 0.01%

Freddie Mac Pool UMBS, 30 Year, due Jun 1, 2049 0.02% 0.01%

Ginnie Mae II Pool, 30 Year, due May 20, 2048 0.00% 0.02%

Fannie Mae Pool UMBS, 30 Year, due Jan 1, 2047 0.00% 0.00%

Fannie Mae Pool UMBS, 30 Year, due Nov 1, 2047 0.07% 0.00%

Fannie Mae Pool UMBS, 30 Year, due Dec 1, 2047 0.00% 0.00%

Only in JMBS

Fannie Mae / Freddie Mac UMBS, Single Family, 30 Year, due Aug 25, 2056 16.97%

Ginnie Mae II UMBS, Single Family, 30 Year, due Aug 15, 2056 8.87%

Fannie Mae / Freddie Mac UMBS, Single Family, 30 Year, due Aug 25, 2056 7.55%

Fannie Mae Pool UMBS, 30 Year, due Sep 1, 2053 4.59%

Fannie Mae / Freddie Mac UMBS, Single Family, 30 Year, due Aug 25, 2056 4.21%

Fannie Mae / Freddie Mac UMBS, Single Family, 30 Year, due Aug 25, 2056 3.82%

Fannie Mae / Freddie Mac UMBS, Single Family, 30 Year, due Aug 25, 2056 3.66%

Ginnie Mae II UMBS, Single Family, 30 Year, due Aug 15, 2056 2.87%

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%

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

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%

Check overlap with more funds →

On the same fields

JMBS

Janus Henderson Mortgage-Backed Securities ETF

SPMB

State Street SPDR Portfolio Mortgage Backed Bond ETF

Where it sits Bond ETF Bond ETF

Issuer Janus Henderson State Street

What it is Actively managed Tracks an index

Total return, 1 year −1.8% −1.4%

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

Gap to the S&P 500 −19.1 pts −18.7 pts

Expense ratio 0.21% 0.04%

Holdings 618 2756

Net assets, JMBS as of Jul 31, 2026 and SPMB as of Oct 8, 2026 $6.7bn $6.8bn

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

JMBS in plain words

JMBS is actively managed and tracks no index. The prospectus expense ratio is 0.21% a year. It sat 5.4% below its high of Feb 27, 2026 on Oct 9, 2026.

Over the year to Oct 9, 2026 it returned −1.8% with distributions reinvested, against −1.6% for its benchmark, the Bloomberg U.S. Aggregate Bond Index.

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, JMBS or SPMB?: In the year to Oct 9, 2026, with distributions reinvested, JMBS returned −1.8% and SPMB −1.4%.
Which is cheaper, JMBS or SPMB?: SPMB is cheaper, by 0.17 percentage points a year. That is about $17 on $10,000 held for a year. Fees come from each fund's prospectus.

Other comparisons

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

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

Where these figures came from

JMBS filings on SEC EDGAR ↗JMBS prospectus with the expense ratio (SEC) ↗Janus Henderson 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, JMBS against SPMB, data as of Oct 9, 2026. https://etfiq.com/compare/any/jmbs-vs-spmb

Open data

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