NUIBvsIUSBETF Comparison
VS
Nuveen Impact Bond ETF (NUIB) and iShares Core Total USD Bond Market ETF (IUSB) belong to the same industry segment: US Aggregate Bonds. NUIB's top 3 sector exposures are Finance, Utilities and Sovereign. In contrast, IUSB's top sector exposures are Sovereign, Finance and Industrials. NUIB is more expensive with a Total Expense Ratio (TER) of 0.37%, versus 0.06% for IUSB. Run a side-by-side ETF comparison of NUIB 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.
Find out how industry players manage ETF portfolios. Discover our library of Model portfolios
NUIB vs IUSB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/29/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | NUIB IUSB | +1.75%+2.24% | n/a-0.27% | n/a-0.42% | n/a-0.06% | n/a+18.34% | n/a+1.04% |
| Flows | NUIB IUSB | +$1M+$1.54B | -+$7.61B | -+$17.15B | -+$18.52B | -+$28.35B | -+$37.70B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | NUIB IUSB | n/a+4.39% | n/a+3.73% | n/a+4.59% | n/a+5.56% |
| Max drawdown | NUIB IUSB | n/a-3.24% | n/a-4.33% | n/a-4.33% | n/a-17.40% |
| Max drawdown duration | NUIB IUSB | n/a66d | n/a243d | n/a280d | n/a1406d |
Trading data
NUIB | IUSB | |
Last sale 10/30/2026 at 1:30 PM | $25.18 | $44.91 |
| Previous close 10/29/2026 | $25.13 | $44.81 |
| 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 September 30, 2026
1-year trailing difference
Create an account to view replication metrics
Join for free
NUIB
is actively managed and doesn’t replicate an indexNUIB | IUSB | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
Advertisement
Main metrics
Last update 10/30/2026 at 1:30 PM
Live
Closed
NUIB | IUSB | |
|---|---|---|
| Last price | $25.18 | $44.91 |
| 1D performance | +0.20% | +0.22% |
| AuM | $46.47 M | $50.20 B |
| E/R | 0.37% | 0.06% |
Advertisement
Exposure
Countries
NUIB
USA
54.61%
Other
45.39%
IUSB
USA
71.83%
Other
28.17%
Sectors
NUIB
Finance
32.15%
Utilities
22.97%
Other
44.88%
IUSB
Sovereign
41.82%
Finance
12.96%
Other
45.22%
Diversification
NUIB
Total weight of top 15 holdings out of 15
32.79%
IUSB
Total weight of top 15 holdings out of 15
10.41%
Top 15 holdings
Data as of September 30, 2026
NUIB
US91282CRF04
5.30%
USA, Bonds 5% 15may2056, USD
3.52%
Asian Infrastructure Investment Bank (AIIB), 4.25% 13mar2034, USD
2.13%
Port of Morrow, 5.296% 1sep2043, USD (2026)
2.09%
Topaz Solar Farms, 5.75% 30sep2039, USD (A)
1.98%
Mastercard, 1.9% 15mar2031, USD
1.97%
International Development Association (IDA), 4.5% 12feb2035, USD (37)
1.96%
US912810UX45
1.86%
Agence Francaise de Developpement, 4% 15jun2027, USD
1.81%
European Investment Bank (EIB), 0.625% 21oct2027, USD
1.78%
Public Service Company of Oklahoma, 2.2% 15aug2031, USD (J)
1.77%
Pacific Gas & Electric, 6.7% 1apr2053, USD
1.71%
USA, Notes 4.375% 15may2036, USD (C-2036)
1.70%
African Development Bank, 5.75% perp., USD
1.65%
NY State Electric & Gas, 5.05% 15aug2035, USD
1.58%
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%
Frequently asked questions about NUIB and IUSB
Which ETF is bigger: NUIB or IUSB?
As of October 29, 2026, NUIB holds $46.47 M in assets under management (AUM), while IUSB manages $50.20 B.
What sectors do the NUIB and IUSB ETFs invest in?
NUIB leans toward sectors like Finance and Utilities. Meanwhile, IUSB focuses on Sovereign and Finance.
What are the top holdings of the NUIB ETF and IUSB ETF?
NUIB top holdings include US91282CRF04, USA, Bonds 5% 15may2056, USD and Asian Infrastructure Investment Bank (AIIB), 4.25% 13mar2034, USD. IUSB holds in its top three: BlackRock Liquidity TempCash, USA, Notes 4.625% 15feb2035, USD (B-2035) and US01F0206A20.
Which ETF is more diversified: NUIB or IUSB?
NUIB holds 91 securities with 32.79% of its assets in the top 15. IUSB has 18160 securities and a top 15 weight of 10.41%.
Advertisement
Latest news about NUIB & IUSB
Why IUSB Is Overtaking AGG as the Default Bond ETF for Investors
October 23, 2026
IUSB
The Weekly ETF Market Monitor (September 21-25, 2026)
September 26, 2026
IUSB
Advertisement
Advertisement
