JMBS vs SMBS: Differences, Returns & Fees
JMBS's duration was 6.2 years on Jul 31, 2026 and SMBS's 5.1 on May 31, 2026; SMBS charges 0.03% to JMBS's 0.21%. Net assets: $6.7bn on Jul 31, 2026 for Janus Henderson Mortgage-Backed Securities ETF, and $6.4bn on May 31, 2026 for Schwab Mortgage-Backed Securities ETF.
SMBS costs 0.18 points a year less; their one-year returns differ by 0.8 points.
| JMBS | SMBS | |
|---|---|---|
| Expense ratio | 0.21% | 0.03% |
| Net assets, JMBS as of Jul 31, 2026 and SMBS as of May 31, 2026 | $6.7bn | $6.4bn |
| Total return, 1 year | −1.8% | −1.0% |
| What it tracks | No index, actively managed | Bloomberg US MBS Float Adjusted Total Return Index |
| Holdings in common | 0% | |
| Below its high | 5.4%, high on Feb 27, 2026 | 4.4%, high on Feb 27, 2026 |
Holdings in common uses holdings dated May 31, 2026 and Jul 31, 2026.
What they hold in common
By the books each fund has filed, JMBS and SMBS 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
On the same fields
JMBS and SMBS 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.
SMBS in plain words
SMBS tracks an index. The prospectus expense ratio is 0.03% a year. It sat 4.4% below its high of Feb 27, 2026 on Oct 9, 2026.
Over the year to Oct 9, 2026 it returned −1.0% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg US MBS Float Adjusted Total Return Index, measured by the closely related Bloomberg U.S. MBS Index.
Questions people ask
- Which returned more over the last year, JMBS or SMBS?
- In the year to Oct 9, 2026, with distributions reinvested, JMBS returned −1.8% and SMBS −1.0%.
- Which is cheaper, JMBS or SMBS?
- SMBS 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.
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.
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ETFIQ, JMBS against SMBS, data as of Oct 9, 2026. https://etfiq.com/compare/any/jmbs-vs-smbs
ETFIQ. (Oct 9, 2026). JMBS against SMBS. Retrieved from https://etfiq.com/compare/any/jmbs-vs-smbs
[JMBS against SMBS (ETFIQ, Oct 9, 2026)](https://etfiq.com/compare/any/jmbs-vs-smbs)
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