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IUSBvsBKAGETF Comparison

ETF 1

IUSB

iShares Core Total USD Bond Market ETF

This fund is part of

US Aggregate Bonds

+0.24%

Full IUSB fund page

VS

ETF 2

BKAG

BNY Mellon Core Bond ETF

This fund is part of

US Aggregate Bonds

+0.24%

Full BKAG fund page

iShares Core Total USD Bond Market ETF (IUSB) and BNY Mellon Core Bond ETF (BKAG) belong to the same industry segment: US Aggregate Bonds. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. IUSB is down -0.42% year-to-date (YTD) with +$17.15B in YTD flows. BKAG performs worse with -0.56% YTD performance, and -$487M in YTD flows. Run a side-by-side ETF comparison of IUSB and BKAG 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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IUSB vs BKAG 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 10/30/2026

		1M	3M	YTD	1Y	3Y	5Y
Perf.	IUSB BKAG	+2.24%+2.44%	-0.27%-0.13%	-0.42%-0.56%	-0.06%-0.17%	+18.34%+17.12%	+1.04%-1.06%
Flows	IUSB BKAG	+$1.54B-$88M	+$7.61B-$701M	+$17.15B-$487M	+$18.52B-$438M	+$28.35B+$995M	+$37.70B+$1.42B

Volatility and drawdown

		3M	1Y	3Y	5Y
Volatility	IUSB BKAG	+4.39%+4.61%	+3.73%+3.90%	+4.59%+4.93%	+5.56%+5.99%
Max drawdown	IUSB BKAG	-3.24%-3.30%	-4.33%-4.69%	-4.33%-4.90%	-17.40%-17.64%
Max drawdown duration	IUSB BKAG	66d66d	243d243d	280d284d	1406d1564d

Trading data

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	IUSB	BKAG
Last sale 10/30/2026 at 1:30 PM	$44.91	$40.77
Previous close 10/29/2026	$44.81	$40.71
Consolidated volume 10/29/2026
Average volume 30 days
Average discount or premium 30 days
Average Bid/Ask spread 30 days

Replication quality

Data as of October 30, 2026

1-year trailing difference

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	IUSB	BKAG
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst

Main metrics

Last update 10/30/2026 at 1:30 PM

Live

Closed

	IUSB	BKAG
Last price	$44.91	$40.77
1D performance	+0.22%	+0.15%
AuM	$50.20 B	$1.47 B
E/R	0.06%	0%

Characteristics

	IUSB	BKAG
Management strategy	Passive	Passive
Provider	iShares	BNY Mellon
Benchmark	Bloomberg U.S. Universal Index	Bloomberg US Aggregate Bond Index
N° of holdings	15946	3621
Asset class	Bonds	Bonds
Trailing 12m distribution yield	Join	Join
Inception date	June 10, 2014	April 22, 2020
ESG	No	No

More IUSB data on Trackinsight

More BKAG data on Trackinsight

Exposure

Countries

IUSB

USA

71.83%

Other

28.17%

BKAG

USA

68.45%

Other

31.55%

Sectors

IUSB

Sovereign

41.82%

Finance

12.96%

Other

45.22%

BKAG

Sovereign

44.21%

Finance

8.87%

Industrials

7.07%

Other

39.86%

Diversification

IUSB

Total weight of top 15 holdings out of 15

10.41%

BKAG

Total weight of top 15 holdings out of 15

6.56%

Top 15 holdings

Data as of September 30, 2026

IUSB

BlackRock Liquidity TempCash

5.04%

USA, Notes 4.625% 15feb2035, USD (B-2035)

0.50%

US01F0206A20

0.50%

USA, Notes 4% 15nov2035, USD (F-2035)

0.43%

USA, Notes 4.25% 15aug2035, USD (E-2035)

0.42%

USA, Notes 1.875% 15feb2032, USD (B-2032)

0.39%

USA, Notes 4.125% 31may2031, USD (Z-2031)

0.38%

US01F0526A56

0.37%

USA, Notes 4.125% 15feb2036, USD (B-2036)

0.36%

US01F0204A48

0.36%

US91282CRH69

0.34%

USA, Notes 1.25% 30sep2028, USD (Q-2028)

0.34%

USA, Notes 4.875% 31oct2028, USD (AF-2028)

0.33%

USA, Notes 4.375% 31dec2029, USD (AH-2029)

0.33%

USA, Notes 4.625% 30sep2028, USD (AD-2028)

0.33%

BKAG

USA, Notes 4.5% 15nov2033, USD (F-2033)

0.55%

USA, Notes 4.125% 15feb2036, USD (B-2036)

0.52%

USA, Notes 4.25% 15nov2034, USD (F-2034)

0.48%

USA, Notes 4.375% 15may2036, USD (C-2036)

0.48%

USA, Notes 1.25% 15aug2031, USD (E-2031)

0.47%

USA, Notes 1.375% 15nov2031, USD (F-2031)

0.47%

US91282CRH69

0.45%

USA, Notes 3.625% 31aug2029, USD (AC-2029)

0.45%

USA, Notes 3.875% 15aug2033, USD (E-2033)

0.40%

USA, Notes 1.375% 31dec2028, USD (T-2028)

0.40%

USA, Notes 0.375% 30sep2027, USD (Q-2027)

0.38%

USA, Notes 1.125% 31aug2028, USD (P-2028)

0.38%

USA, Notes 4.625% 15feb2035, USD (B-2035)

0.38%

USA, Notes 4.375% 15may2034, USD (C-2034)

0.38%

USA, Notes 4.375% 31aug2028, USD (AC-2028)

0.37%

Frequently asked questions about IUSB and BKAG

How have the IUSB and BKAG ETFs performed in 2026?

As of October 30, 2026, IUSB is down -0.42% year-to-date (YTD), while BKAG has lost -0.56%. That puts IUSB better performer ahead so far this year.

Which ETF is attracting more investor money: IUSB or BKAG?

Year-to-date, the IUSB ETF saw +$17.15B in flows, compared to -$487M for BKAG.

Which ETF is more volatile: IUSB or BKAG?

Over the past year, IUSB had a volatility of 3.73%, while BKAG experienced 3.9%.

Which ETF is bigger: IUSB or BKAG?

As of October 30, 2026, IUSB holds $50.20 B in assets under management (AUM), while BKAG manages $1.47 B.

What sectors do the IUSB and BKAG ETFs invest in?

IUSB leans toward sectors like Sovereign and Finance. Meanwhile, BKAG focuses on Sovereign, Finance and Industrials.

What are the top holdings of the IUSB ETF and BKAG ETF?

IUSB top holdings include BlackRock Liquidity TempCash, USA, Notes 4.625% 15feb2035, USD (B-2035) and US01F0206A20. BKAG holds in its top three: USA, Notes 4.5% 15nov2033, USD (F-2033), USA, Notes 4.125% 15feb2036, USD (B-2036) and USA, Notes 4.25% 15nov2034, USD (F-2034).

IUSBvsBKAGETF Comparison

iShares Core Total USD Bond Market ETF

BNY Mellon Core Bond ETF

IUSB vs BKAG 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 IUSB and BKAG ETFs performed in 2026?

As of October 30, 2026, IUSB is down -0.42% year-to-date (YTD), while BKAG has lost -0.56%. That puts IUSB better performer ahead so far this year.

Which ETF is attracting more investor money: IUSB or BKAG?

Year-to-date, the IUSB ETF saw +$17.15B in flows, compared to -$487M for BKAG.

Which ETF is more volatile: IUSB or BKAG?

Over the past year, IUSB had a volatility of 3.73%, while BKAG experienced 3.9%.

Which ETF is bigger: IUSB or BKAG?

As of October 30, 2026, IUSB holds $50.20 B in assets under management (AUM), while BKAG manages $1.47 B.

What sectors do the IUSB and BKAG ETFs invest in?

IUSB leans toward sectors like Sovereign and Finance. Meanwhile, BKAG focuses on Sovereign, Finance and Industrials.

What are the top holdings of the IUSB ETF and BKAG ETF?

IUSB top holdings include BlackRock Liquidity TempCash, USA, Notes 4.625% 15feb2035, USD (B-2035) and US01F0206A20. BKAG holds in its top three: USA, Notes 4.5% 15nov2033, USD (F-2033), USA, Notes 4.125% 15feb2036, USD (B-2036) and USA, Notes 4.25% 15nov2034, USD (F-2034).

Which ETF is more diversified: IUSB or BKAG?

IUSB holds 18160 securities with 10.41% of its assets in the top 15. BKAG has 4529 securities and a top 15 weight of 6.56%.

Why IUSB Is Overtaking AGG as the Default Bond ETF for Investors

The Weekly ETF Market Monitor (September 21-25, 2026)

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BKAG: A True Zero-Cost, No Expense Ratio Bond ETF

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