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MAGGvsIUSBETF Comparison

ETF 1
MAGG

Madison Aggregate Bond ETF

This fund is part of
US Aggregate Bonds
+0.03%
VS
ETF 2
IUSB

iShares Core Total USD Bond Market ETF

This fund is part of
US Aggregate Bonds
+0.03%

Madison Aggregate Bond ETF (MAGG) and iShares Core Total USD Bond Market ETF (IUSB) belong to the same industry segment: US Aggregate Bonds. In contrast, IUSB's top sector exposures are Sovereign, Finance and Industrials. MAGG is more expensive with a Total Expense Ratio (TER) of 0.36%, versus 0.06% for IUSB. MAGG is down -1.9% year-to-date (YTD) with +$3M in YTD flows. IUSB performs better with -1.42% YTD performance, and +$16.70B in YTD flows. Run a side-by-side ETF comparison of MAGG and IUSB 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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MAGG vs IUSB performance and flow charts

Performance

-1.5-1.0-0.50.00.5%Sep 16Sep 23Sep 30Oct 7Oct 14

Cumulative Flows

0 B1 B2 B3 B4 B5 B6 BSep 16Sep 23Sep 30Oct 7Oct 14

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

Historic performance and flows
Data as of 10/16/2026
1M3MYTD1Y3Y5Y
Perf.
MAGG
IUSB
-0.26%-0.19%
-1.93%-1.78%
-1.90%-1.42%
-1.78%-1.37%
+15.83%+16.28%
n/a+0.06%
Flows
MAGG
IUSB
-$486K+$6.05B
+$12K+$7.66B
+$3M+$16.70B
+$600K+$18.01B
+$17M+$27.91B
-+$37.54B
Volatility and drawdown
3M1Y3Y5Y
Volatility
MAGG
IUSB
+4.28%+4.15%
+3.81%+3.66%
+4.86%+4.63%
n/a+5.55%
Max drawdown
MAGG
IUSB
-3.47%-3.24%
-4.93%-4.33%
-4.93%-4.33%
n/a-17.40%
Max drawdown duration
MAGG
IUSB
89d52d
229d229d
229d280d
n/a1406d
Trading data

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MAGG
IUSB
Last sale
10/16/2026 at 1:30 PM
$19.43
$44.47
Previous close
10/15/2026
$19.41
$44.47
Consolidated volume
10/15/2026
Average volume
30 days
Average discount or premium
30 days
Average Bid/Ask spread
30 days
Replication quality
Data as of September 30, 2026
1-year trailing difference

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MAGG
is actively managed and doesn’t replicate an index

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MAGG
IUSB
Tracking error
Tracking difference
1 year cumulative return difference
Best
Worst
Daily return difference
Average
Worst
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
MAGG
IUSB
Last price
$19.43
$44.47
1D performance
+0.11%
+0.00%
AuM$63.25 M$49.25 B
E/R0.36%0.06%
Characteristics
MAGG
IUSB
Management strategyActivePassive
ProviderMadison InvestmentsiShares
Benchmark-Bloomberg U.S. Universal Index
N° of holdings-16069
Asset class-Bonds
Trailing 12m distribution yield
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Inception dateAugust 29, 2023June 10, 2014
ESGNoNo
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Exposure

Countries

MAGG
Data will be available soon
IUSB
USA
72.98%
Other
27.02%

Sectors

MAGG
Data will be available soon
IUSB
Sovereign
42.65%
Finance
13.17%
Other
44.17%

Diversification

MAGG
Data will be available soon
IUSB

Total weight of top 15 holdings out of 15

9.55%

Top 15 holdings

Data as of January 1, 1970
MAGG
Data will be available soon
IUSB
BlackRock Liquidity TempCash
4.49%
USA, Notes 4% 15nov2035, USD (F-2035)
0.49%
US01F0206957
0.41%
USA, Notes 4.375% 31dec2029, USD (AH-2029)
0.37%
USA, Notes 4.375% 15may2036, USD (C-2036)
0.36%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
0.36%
USA, Notes 4% 15feb2034, USD (B-2034)
0.35%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.35%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.35%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.35%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.34%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.34%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.34%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.33%
USA, Notes 2.75% 15aug2032, USD (E-2032)
0.32%
Frequently asked questions about MAGG and IUSB

How have the MAGG and IUSB ETFs performed in 2026?

As of October 16, 2026, MAGG is down -1.9% year-to-date (YTD), while IUSB has lost -1.42%. That puts IUSB better performer ahead so far this year.

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

Year-to-date, the MAGG ETF saw +$3M in flows, compared to +$16.70B for IUSB.

Which ETF is more volatile: MAGG or IUSB?

Over the past year, MAGG had a volatility of 3.81%, while IUSB experienced 3.66%.

Which ETF is bigger: MAGG or IUSB?

As of October 16, 2026, MAGG holds $63.25 M in assets under management (AUM), while IUSB manages $49.25 B.

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Latest news about MAGG & IUSB
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