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JIIIvsSPMBETF Comparison

ETF 1

JIII

Janus Henderson Income ETF

This fund is part of

Intl Aggregate Bonds

+0.03%

Full JIII fund page

VS

ETF 2

SPMB

State Street State Street SPDR Portfolio Mortgage Backed Bond ETF

This fund is part of

MBS & ABS

+0.12%

Full SPMB fund page

Janus Henderson Income ETF (JIII) belongs to the Intl Aggregate Bonds segment. State Street State Street SPDR Portfolio Mortgage Backed Bond ETF (SPMB) is part of the MBS & ABS segment. JIII's top 3 sector exposures are Industrials, Finance and Energy. In contrast, SPMB's top sector exposures are Industrials, Finance and Government Agencies. JIII is more expensive with a Total Expense Ratio (TER) of 0.56%, versus 0.04% for SPMB. JIII is up 1.8% year-to-date (YTD) with +$55M in YTD flows. SPMB performs worse with -0.14% YTD performance, and +$644M in YTD flows. Run a side-by-side ETF comparison of JIII and SPMB below, and assess how they stack up in performance, liquidity, risk, exposure, holdings, and more, helping you select the best ETF for your investments.

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JIII vs SPMB performance and flow charts

Performance

Cumulative Flows

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Daily, global ETF data for advanced analysis or integration into apps (API), from our partner Trackinsight.

Data Services

Historic performance and flows

Data as of 09/02/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	JIII SPMB	+0.22%+0.01%	+0.47%-0.85%	+1.80%-0.14%	+4.01%+2.99%	n/a+15.40%	n/a+0.33%
Flows	JIII SPMB	+$10M+$169M	+$25M+$280M	+$55M+$644M	+$62M+$941M	-+$2.57B	-+$3.68B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	JIII SPMB	+2.96%+4.73%	+2.77%+4.26%	n/a+5.92%	n/a+6.71%
Max drawdown	JIII SPMB	-0.91%-1.90%	-2.27%-2.98%	n/a-5.50%	n/a-17.38%
Max drawdown duration	JIII SPMB	37d65d	46d185d	n/a75d	n/a1500d

Trading data

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	JIII	SPMB
Last sale 9/3/2026 at 1:30 PM	$49.08	$21.86
Previous close 09/02/2026	$49.04	$21.82
Consolidated volume 09/02/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of August 31, 2026

1-year trailing difference

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JIII

is actively managed and doesn’t replicate an index

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	JIII	SPMB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 9/3/2026 at 1:30 PM

Live

Closed

	JIII	SPMB
Last price	$49.08	$21.86
1D performance	+0.08%	+0.18%
AuM	$199.01 M	$7.10 B
E/R	0.56%	0.04%

Characteristics

	JIII	SPMB
Management strategy	Active	Passive
Provider	Janus Henderson Investors	State Street Investment Management
Benchmark	-	Bloomberg U.S. MBS Index
N° of holdings	458	554
Asset class	-	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	November 12, 2024	January 15, 2009
ESG	No	No

More JIII data on Trackinsight

More SPMB data on Trackinsight

Exposure

Countries

JIII

USA

29.18%

Other

70.82%

SPMB

USA

32.64%

Other

67.36%

Sectors

JIII

Industrials

7.25%

Other

92.75%

SPMB

Industrials

32.31%

Other

67.69%

Diversification

JIII

Total weight of top 15 holdings out of 15

27.43%

SPMB

Total weight of top 15 holdings out of 15

9.28%

Top 15 holdings

Data as of July 31, 2026

JIII

US01F0526800

5.68%

US01F0506844

3.97%

US01F0426811

3.38%

US01F0606834

2.76%

US01F0326821

2.49%

US01F0306864

2.16%

US01F0406854

1.17%

US21H0326882

0.98%

US35564KPP83

0.90%

US207941AF22

0.79%

US362414AG97

0.71%

US171935AA72

0.66%

US35564KNE54

0.63%

US20754EAJ47

0.58%

BX Trust 2024-GPA3, FRN 15dec2039, USD (ABS, C)

0.56%

SPMB

US3142J6C840

1.16%

US01F0526800

0.86%

FN MA4547, 2% 1feb2052, USD (ABS)

0.78%

US3142J6BK85

0.76%

US01F0506844

0.70%

FR SD8212, 2.5% 1may2052, USD (ABS)

0.60%

US3132DWMY65

0.55%

G2 MB0424, 5.5% 20jun2055, USD (ABS)

0.54%

FN MA4701, 4.5% 1aug2052, USD (ABS)

0.51%

US01F0606834

0.50%

US21H0506806

0.49%

FN FA0608, 5.5% 1feb2055, USD (ABS)

0.49%

FN MA4465, 2% 1nov2051, USD (ABS)

0.47%

FN FS2040, 2% 1feb2052, USD (ABS)

0.44%

US3132DWKV45

0.43%

Frequently asked questions about JIII and SPMB

How have the JIII and SPMB ETFs performed in 2026?

As of September 2, 2026, JIII is up 1.8% year-to-date (YTD), while SPMB has lost -0.14%. That puts JIII better performer ahead so far this year.

Which ETF is attracting more investor money: JIII or SPMB?

Year-to-date, the JIII ETF saw +$55M in flows, compared to +$644M for SPMB.

Which ETF is more volatile: JIII or SPMB?

Over the past year, JIII had a volatility of 2.77%, while SPMB experienced 4.26%.

Which ETF is bigger: JIII or SPMB?

As of September 2, 2026, JIII holds $199.01 M in assets under management (AUM), while SPMB manages $7.10 B.

What sectors do the JIII and SPMB ETFs invest in?

JIII leans toward sectors like Industrials. Meanwhile, SPMB focuses on Industrials.

What are the top holdings of the JIII ETF and SPMB ETF?

JIII top holdings include US01F0526800, US01F0506844 and US01F0426811. SPMB holds in its top three: US3142J6C840, US01F0526800 and FN MA4547, 2% 1feb2052, USD (ABS).

JIIIvsSPMBETF Comparison

Janus Henderson Income ETF

State Street State Street SPDR Portfolio Mortgage Backed Bond ETF

JIII vs SPMB performance and flow charts

Performance

Cumulative Flows

Get all the metrics on this page, and more, through a reliable ETF data feed

Countries

Sectors

Diversification

Top 15 holdings

How have the JIII and SPMB ETFs performed in 2026?

As of September 2, 2026, JIII is up 1.8% year-to-date (YTD), while SPMB has lost -0.14%. That puts JIII better performer ahead so far this year.

Which ETF is attracting more investor money: JIII or SPMB?

Year-to-date, the JIII ETF saw +$55M in flows, compared to +$644M for SPMB.

Which ETF is more volatile: JIII or SPMB?

Over the past year, JIII had a volatility of 2.77%, while SPMB experienced 4.26%.

Which ETF is bigger: JIII or SPMB?

As of September 2, 2026, JIII holds $199.01 M in assets under management (AUM), while SPMB manages $7.10 B.

What sectors do the JIII and SPMB ETFs invest in?

JIII leans toward sectors like Industrials. Meanwhile, SPMB focuses on Industrials.

What are the top holdings of the JIII ETF and SPMB ETF?

JIII top holdings include US01F0526800, US01F0506844 and US01F0426811. SPMB holds in its top three: US3142J6C840, US01F0526800 and FN MA4547, 2% 1feb2052, USD (ABS).

Which ETF is more diversified: JIII or SPMB?

JIII holds 1453 securities with 27.43% of its assets in the top 15. SPMB has 2713 securities and a top 15 weight of 9.28%.

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