JMBS vs VMBS: Differences, Returns & Fees

JMBS's duration was 6.2 years on Jul 31, 2026 and VMBS's 5.2 on May 31, 2026; VMBS charges 0.03% to JMBS's 0.21%. Net assets: $6.7bn on Jul 31, 2026 for Janus Henderson Mortgage-Backed Securities ETF, and $15.5bn on Sep 30, 2026 for Vanguard Mortgage-Backed Securities ETF.

VMBS costs 0.18 points a year less; their one-year returns differ by 0.9 points.

JMBSVMBS
Expense ratio0.21%0.03%
Net assets, JMBS as of Jul 31, 2026 and VMBS as of Sep 30, 2026$6.7bn$15.5bn
Total return, 1 year−1.8%−0.9%
What it tracksNo index, actively managednot read by ETFIQ
Holdings in common0%
Below its high5.4%, high on Feb 27, 20264.3%, high on Feb 27, 2026

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

−1.8%
JMBS total return, 1 year
−0.9%
VMBS total return, 1 year
0.21%
JMBS expense ratio
0.03%
VMBS expense ratio

What they hold in common

By the books each fund has filed, JMBS and VMBS 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 May 31, 2026 and Jul 31, 2026.

half

0% in common

Positions both hold, largest shared weight first
Holding JMBS VMBS
Fannie Mae Pool UMBS, 30 Year, due Sep 1, 2050 0.09% 0.06%
Fannie Mae Pool UMBS, 30 Year, due Nov 1, 2048 0.02% 0.02%
Fannie Mae Pool UMBS, 30 Year, due Jul 1, 2048 0.02% 0.02%
Fannie Mae Pool UMBS, 30 Year, due Jan 1, 2052 0.02% 0.01%
Fannie Mae Pool UMBS, 30 Year, due Sep 1, 2050 0.21% 0.01%
Fannie Mae Pool UMBS, 30 Year, due May 1, 2050 0.04% 0.01%
Fannie Mae Pool UMBS, 30 Year, due Oct 1, 2047 0.02% 0.00%
Ginnie Mae II Pool, 30 Year, due May 20, 2048 0.00% 0.01%
Fannie Mae Pool UMBS, 30 Year, due Jun 1, 2050 0.04% 0.00%
Ginnie Mae II Pool, 30 Year, due Feb 20, 2048 0.01% 0.00%
Fannie Mae Pool UMBS, 30 Year, due Mar 1, 2050 0.02% 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 VMBS
FNCL 2 6/26, due Jun 11, 2026 0.52%
G2SF 5.5 7/26, due Jul 20, 2026 0.36%
G2 MB0025, due Nov 20, 2054 0.32%
G2 MB0871, due Jan 20, 2056 0.31%
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%

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On the same fields

JMBS
Janus Henderson Mortgage-Backed Securities ETF
VMBS
Vanguard Mortgage-Backed Securities ETF
Where it sits Bond ETF Bond ETF
What it is Actively managed Tracks an index
Total return, 1 year −1.8% −0.9%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 −19.1 pts −18.1 pts
Expense ratio 0.21% 0.03%
Holdings 618 4890
Net assets, JMBS as of Jul 31, 2026 and VMBS as of Sep 30, 2026 $6.7bn $15.5bn

JMBS and VMBS 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.

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, JMBS or VMBS?
In the year to Oct 9, 2026, with distributions reinvested, JMBS returned −1.8% and VMBS −0.9%.
Which is cheaper, JMBS or VMBS?
VMBS is cheaper, by 0.18 percentage points a year. That is about $18 on $10,000 held for a year. Fees come from each fund's prospectus.
Cite this pageCitation, APA and Markdown

ETFIQ, JMBS against VMBS, data as of Oct 9, 2026. https://etfiq.com/compare/any/jmbs-vs-vmbs

Open data

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