NUSBvsIMTBETF Comparison
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Nuveen Ultra Short Income ETF (NUSB) belongs to the Money Market Bonds segment. iShares Core 5-10 Year USD Bond ETF (IMTB) is part of the US Aggregate Bonds segment. NUSB's top 3 sector exposures are Finance, Industrials and Healthcare. In contrast, IMTB's top sector exposures are Sovereign, Industrials and Non-Corporate. NUSB is more expensive with a Total Expense Ratio (TER) of 0.17%, versus 0.07% for IMTB. NUSB is up 2.57% year-to-date (YTD) with +$631K in YTD flows. IMTB performs worse with -1.32% YTD performance, and +$4M in YTD flows. Run a side-by-side ETF comparison of NUSB and IMTB 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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NUSB vs IMTB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 09/09/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | NUSB IMTB | +0.30%-1.18% | +0.96%-1.39% | +2.57%-1.32% | +3.96%-0.13% | n/a+15.13% | n/a+0.10% |
| Flows | NUSB IMTB | -- | -- | +$631K+$4M | +$2M+$26M | -+$84M | -+$158M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | NUSB IMTB | +0.27%+4.45% | +0.32%+3.94% | n/a+5.39% | n/a+6.20% |
| Max drawdown | NUSB IMTB | -0.02%-2.52% | -0.04%-3.20% | n/a-5.03% | n/a-18.13% |
| Max drawdown duration | NUSB IMTB | 3d73d | 3d193d | n/a280d | n/a1452d |
Trading data
NUSB | IMTB | |
Last sale 9/11/2026 at 1:30 PM | $25.18 | $42.18 |
| Previous close 09/10/2026 | $25.19 | $42.20 |
| Consolidated volume 09/10/2026 | ||
| 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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NUSB
is actively managed and doesn’t replicate an indexNUSB | IMTB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/11/2026 at 1:30 PM
Live
Closed
NUSB | IMTB | |
|---|---|---|
| Last price | $25.18 | $42.18 |
| 1D performance | -0.01% | -0.06% |
| AuM | $156.19 M | $270.28 M |
| E/R | 0.17% | 0.07% |
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Exposure
Countries
NUSB
USA
53.54%
Other
46.46%
IMTB
USA
63.31%
Other
36.69%
Sectors
NUSB
Finance
32.83%
Industrials
8%
Other
59.17%
IMTB
Sovereign
24.95%
Industrials
13.03%
Non-Corporate
10.19%
Finance
10.09%
Other
41.75%
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Diversification
NUSB
Total weight of top 15 holdings out of 15
17.27%
IMTB
Total weight of top 15 holdings out of 15
23.24%
Top 15 holdings
Data as of July 31, 2026
NUSB
USA, Bills 0% 18mar2027, USD (364D)
2.00%
US04821UKE19
1.91%
US92344MHU09
1.28%
Pfizer, FRN 15nov2027, USD
1.13%
US87020XM720
1.11%
US37961NKP23
1.08%
JP Morgan, 6.07% 22oct2027, USD
1.07%
T-Mobile USA, 4.95% 15mar2028, USD
0.97%
Amazon.com, FRN 13mar2029, USD
0.97%
Wells Fargo, FRN 20may2029, USD (Y)
0.96%
Citigroup, 4.643% 7may2028, USD
0.96%
Bank of America Corporation, 4.376% 27apr2028, USD (N)
0.96%
US06945MHU36
0.96%
US26244JJ261
0.96%
MetLife Global Funding I, 4.25% 13apr2028, USD (2026-5)
0.96%
IMTB
BlackRock Cash Funds - Institutional
10.15%
USA, Notes 4.375% 15may2034, USD (C-2034)
1.19%
USA, Notes 4.25% 15aug2035, USD (E-2035)
1.16%
USA, Notes 4% 15nov2035, USD (F-2035)
1.11%
USA, Notes 4.625% 15feb2035, USD (B-2035)
1.03%
US01F0206874
0.93%
USA, Notes 2.875% 15may2032, USD (C-2032)
0.92%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.91%
USA, Notes 4% 15feb2034, USD (B-2034)
0.86%
USA, Notes 1.25% 15aug2031, USD (E-2031)
0.85%
US31418EDB39
0.85%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.82%
US3140XLFE34
0.82%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.82%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.82%
Frequently asked questions about NUSB and IMTB
How have the NUSB and IMTB ETFs performed in 2026?
As of September 9, 2026, NUSB is up 2.57% year-to-date (YTD), while IMTB has lost -1.32%. That puts NUSB better performer ahead so far this year.
Which ETF is attracting more investor money: NUSB or IMTB?
Year-to-date, the NUSB ETF saw +$631K in flows, compared to +$4M for IMTB.
Which ETF is more volatile: NUSB or IMTB?
Over the past year, NUSB had a volatility of 0.32%, while IMTB experienced 3.94%.
Which ETF is bigger: NUSB or IMTB?
As of September 9, 2026, NUSB holds $156.19 M in assets under management (AUM), while IMTB manages $270.28 M.
What sectors do the NUSB and IMTB ETFs invest in?
NUSB leans toward sectors like Finance and Industrials. Meanwhile, IMTB focuses on Sovereign, Industrials and Non-Corporate.
What are the top holdings of the NUSB ETF and IMTB ETF?
NUSB top holdings include USA, Bills 0% 18mar2027, USD (364D), US04821UKE19 and US92344MHU09. IMTB holds in its top three: BlackRock Cash Funds - Institutional, USA, Notes 4.375% 15may2034, USD (C-2034) and USA, Notes 4.25% 15aug2035, USD (E-2035).
Which ETF is more diversified: NUSB or IMTB?
NUSB holds 139 securities with 17.27% of its assets in the top 15. IMTB has 3452 securities and a top 15 weight of 23.24%.
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