JMTG vs SPMB: Differences, Returns & Fees

JMTG's duration was 5.6 years on May 31, 2026 and SPMB's 5.5 on Jun 30, 2026; SPMB charges 0.04% to JMTG's 0.24%. Net assets: $6.7bn on Oct 9, 2026 for JPMorgan Mortgage-Backed Securities ETF, and $6.8bn on Oct 8, 2026 for State Street SPDR Portfolio Mortgage Backed Bond ETF.

SPMB costs 0.20 points a year less; their one-year returns differ by 0.6 points.

JMTGSPMB
Expense ratio0.24%0.04%
Net assets, as of Oct 8, 2026$6.8bn$6.8bn
Total return, 1 year−0.8%−1.4%
What it tracksNo index, actively managedBloomberg U.S. MBS Index ?
Holdings in common1%
Below its high4.3%, high on Feb 27, 20264.7%, high on Feb 27, 2026

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

−0.8%
JMTG total return, 1 year
−1.4%
SPMB total return, 1 year
0.24%
JMTG expense ratio
0.04%
SPMB expense ratio

What they hold in common

By the books each fund has filed, JMTG and SPMB hold 1% 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.

half

1% in common

Positions both hold, largest shared weight first
Holding JMTG SPMB
GNMA II, 30 Year, due Oct 20, 2052 0.26% 0.23%
FHLMC UMBS, 30 Year, due May 1, 2052 0.13% 0.61%
GNMA II, 30 Year, due Mar 20, 2053 0.15% 0.08%
FNMA UMBS, 30 Year, due Sep 1, 2051 0.16% 0.07%
FNMA UMBS, 30 Year, due Nov 1, 2051 0.09% 0.07%
FNMA UMBS, 30 Year, due Feb 1, 2052 0.10% 0.06%
FNMA UMBS, 30 Year, due Aug 1, 2050 0.50% 0.05%
FHLMC UMBS, 30 Year, due Mar 1, 2052 0.06% 0.03%
FHLMC UMBS, 30 Year, due May 1, 2051 0.17% 0.02%
FNMA UMBS, 30 Year, due Feb 1, 2052 0.26% 0.02%
FNMA UMBS, 30 Year, due Oct 1, 2051 0.04% 0.01%
FNMA UMBS, 30 Year, due Aug 1, 2043 0.02% 0.00%
Only in JMTG
FNMA/FHLMC UMBS, Single Family, 30 Year, due Jun 25, 2056 2.17%
FNMA/FHLMC UMBS, Single Family, 30 Year, due Jun 25, 2056 1.28%
U.S. Treasury Bonds, due Aug 15, 2043 1.19%
FNMA UMBS, 30 Year, due Oct 1, 2051 0.66%
FNMA ACES, Series 2026-M10, Class A2, due Jul 25, 2035 0.59%
U.S. Treasury Bonds, due May 15, 2040 0.57%
FNMA ACES, Series 2022-M4, Class 2A2, due Dec 25, 2030 0.53%
U.S. Treasury Notes, due Feb 15, 2036 0.49%
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 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

JMTG
JPMorgan Mortgage-Backed Securities ETF
SPMB
State Street SPDR Portfolio Mortgage Backed Bond ETF
Where it sits Bond ETF Bond ETF
What it is Actively managed Tracks an index
Total return, 1 year −0.8% −1.4%
S&P 500 over the same days +17.3% +17.3%
Gap to the S&P 500 −18.1 pts −18.7 pts
Expense ratio 0.24% 0.04%
Holdings 2578 2756
Net assets, JMTG as of Oct 9, 2026 and SPMB as of Oct 8, 2026 $6.7bn $6.8bn

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

JMTG in plain words

JMTG is actively managed and tracks no index. The prospectus expense ratio is 0.24% a year. It sat 4.3% below its high of Feb 27, 2026 on Oct 9, 2026.

Over the year to Oct 9, 2026 it returned −0.8% with distributions reinvested, against −1.2% for its benchmark, the Bloomberg U.S. MBS 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, JMTG or SPMB?
In the year to Oct 9, 2026, with distributions reinvested, JMTG returned −0.8% and SPMB −1.4%.
Which is cheaper, JMTG or SPMB?
SPMB is cheaper, by 0.20 percentage points a year. That is about $20 on $10,000 held for a year. Fees come from each fund's prospectus.
Cite this pageCitation, APA and Markdown

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

Open data

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