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CLOAvsMBBETF Comparison

ETF 1

CLOA

iShares AAA CLO Active ETF

This fund is part of

MBS & ABS

+0%

Full CLOA fund page

VS

ETF 2

MBB

iShares MBS ETF

This fund is part of

MBS & ABS

+0%

Full MBB fund page

iShares AAA CLO Active ETF (CLOA) and iShares MBS ETF (MBB) have similar underlying exposures to countries and sectors. They also belong to the same industry segment: MBS & ABS. CLOA's top 3 sector exposures are Other sectors and Other financial institutions. In contrast, MBB's top sector exposures are Other sectors and Government agencies.Other financial institutions, CLOA is more expensive with a Total Expense Ratio (TER) of 0.2%, versus 0.04% for MBB. CLOA is up 1.02% year-to-date (YTD) with +$596M in YTD flows. MBB performs worse with 0.66% YTD performance, and -$180M in YTD flows. Run a side-by-side ETF comparison of CLOA and MBB 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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CLOA vs MBB 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 04/02/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	CLOA MBB	+0.23%-1.01%	+0.99%+0.82%	+1.02%+0.66%	+5.53%+5.76%	+22.40%+12.51%	n/a+2.15%
Flows	CLOA MBB	+$394M-$285M	+$596M-$180M	+$596M-$180M	+$1.19B+$1.33B	+$1.94B+$12.17B	-+$14.73B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	CLOA MBB	+0.74%+4.56%	+0.77%+4.70%	+0.64%+6.22%	n/a+6.46%
Max drawdown	CLOA MBB	-0.03%-2.55%	-0.75%-2.84%	-0.75%-8.73%	n/a-17.39%
Max drawdown duration	CLOA MBB	3d32d	21d80d	21d252d	n/a1535d

Trading data

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	CLOA	MBB
Last sale 4/2/2026 at 1:30 PM	$51.72	$94.86
Previous close 04/02/2026	$51.69	$94.67
Consolidated volume 04/02/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of March 31, 2026

1-year trailing difference

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CLOA

is actively managed and doesn’t replicate an index

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	CLOA	MBB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 4/2/2026 at 1:30 PM

Live

Closed

	CLOA	MBB
Last price	$51.72	$94.86
1D performance	+0.05%	+0.20%
AuM	$1.97 B	$38.71 B
E/R	0.2%	0.04%

Characteristics

	CLOA	MBB
Management strategy	Active	Passive
Provider	iShares	iShares
Benchmark	-	Bloomberg U.S. MBS Index
N° of holdings	24	1189
Asset class	-	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	January 10, 2023	March 13, 2007
ESG	No	No

More CLOA data on Trackinsight

More MBB data on Trackinsight

Exposure

Countries

CLOA

USA

104.03%

Other

-4.03%

MBB

USA

104.53%

Other

-4.53%

Sectors

CLOA

Other

100%

MBB

Other sectors

20.01%

Other

79.99%

Diversification

CLOA

Total weight of top 15 holdings out of 15

13.25%

MBB

Total weight of top 15 holdings out of 15

14%

Top 15 holdings

Data as of February 28, 2026

CLOA

US0669224778

2.16%

US03330WAU80

1.02%

US67098WAY75

0.88%

US09631RAL24

0.86%

US653947AJ01

0.86%

US93656JAA88

0.85%

US936919AN99

0.83%

US83011LAJ52

0.83%

US67112RBC79

0.82%

US06765BAA52

0.71%

US80013TAL70

0.70%

US00901AAS69

0.70%

US749972AA38

0.68%

US12516KAC18

0.67%

US090976AL55

0.67%

MBB

US0669225197

5.91%

FR SD8146, 2% 1may2051, USD (ABS)

1.07%

US21H0526374

1.01%

US01F0506356

0.57%

G2 MA7648, 2% 20oct2051, USD (ABS)

0.56%

US36179WTX64

0.55%

FN MA4492, 2% 1dec2051, USD (ABS)

0.53%

US21H0506319

0.53%

FR SD8140, 2% 1apr2051, USD (ABS)

0.51%

US01F0526313

0.50%

US36179WJR07

0.47%

US21H0606309

0.46%

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

0.45%

US3140XLE460

0.45%

US3618N5A332

0.43%

Frequently asked questions about CLOA and MBB

How have the CLOA and MBB ETFs performed in 2026?

As of April 2, 2026, CLOA is up 1.02% year-to-date (YTD), while MBB has returned 0.66%. That puts CLOA better performer ahead so far this year.

Which ETF is attracting more investor money: CLOA or MBB?

Year-to-date, the CLOA ETF saw +$596M in flows, compared to -$180M for MBB.

Which ETF is more volatile: CLOA or MBB?

Over the past year, CLOA had a volatility of 0.77%, while MBB experienced 4.7%.

Which ETF is bigger: CLOA or MBB?

As of April 2, 2026, CLOA holds $1.97 B in assets under management (AUM), while MBB manages $38.71 B.

What are the top holdings of the CLOA ETF and MBB ETF?

CLOA top holdings include US0669224778, US03330WAU80 and US67098WAY75. MBB holds in its top three: US0669225197, FR SD8146, 2% 1may2051, USD (ABS) and US21H0526374.

Which ETF is more diversified: CLOA or MBB?

CLOA holds 392 securities with 13.25% of its assets in the top 15. MBB has 9368 securities and a top 15 weight of 14%.

Tony's ETF Buyers Guide: Collateralized Loan Obligation (CLO) ETFs

June 27, 2024

CLOA

NYSE x ETF Central ETF Education Series

March 5, 2024

MBB

CLOAvsMBBETF Comparison

iShares AAA CLO Active ETF

iShares MBS ETF

CLOA vs MBB 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 CLOA and MBB ETFs performed in 2026?

As of April 2, 2026, CLOA is up 1.02% year-to-date (YTD), while MBB has returned 0.66%. That puts CLOA better performer ahead so far this year.

Which ETF is attracting more investor money: CLOA or MBB?

Year-to-date, the CLOA ETF saw +$596M in flows, compared to -$180M for MBB.

Which ETF is more volatile: CLOA or MBB?

Over the past year, CLOA had a volatility of 0.77%, while MBB experienced 4.7%.

Which ETF is bigger: CLOA or MBB?

As of April 2, 2026, CLOA holds $1.97 B in assets under management (AUM), while MBB manages $38.71 B.

What are the top holdings of the CLOA ETF and MBB ETF?

CLOA top holdings include US0669224778, US03330WAU80 and US67098WAY75. MBB holds in its top three: US0669225197, FR SD8146, 2% 1may2051, USD (ABS) and US21H0526374.

Which ETF is more diversified: CLOA or MBB?

CLOA holds 392 securities with 13.25% of its assets in the top 15. MBB has 9368 securities and a top 15 weight of 14%.

Tony's ETF Buyers Guide: Collateralized Loan Obligation (CLO) ETFs

NYSE x ETF Central ETF Education Series

Active Trader Report: Use of Leveraged & Inverse ETFs Way Up