BTOTvsNUBDETF Comparison
VS
iShares Total USD Fixed Income Market ETF (BTOT) and Nushares ESG U.S. Aggregate Bond ETF (NUBD) belong to the same industry segment: US Aggregate Bonds. BTOT's top 3 sector exposures are Sovereign, Finance and Industrials. In contrast, NUBD's top sector exposures are Sovereign, Industrials and Finance. BTOT is less expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.15% for NUBD. BTOT is up 0.23% year-to-date (YTD) with +$5M in YTD flows. NUBD performs worse with -0.31% YTD performance, and +$40M in YTD flows. Run a side-by-side ETF comparison of BTOT and NUBD 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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BTOT vs NUBD performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 08/28/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | BTOT NUBD | +0.04%+0.32% | -0.30%-0.64% | +0.23%-0.31% | n/a+1.91% | n/a+12.19% | n/a-2.15% |
| Flows | BTOT NUBD | -+$27M | +$5M+$47M | +$5M+$40M | -+$84M | -+$212M | -+$276M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | BTOT NUBD | +3.47%+3.89% | n/a+3.65% | n/a+5.02% | n/a+5.84% |
| Max drawdown | BTOT NUBD | -1.49%-1.69% | n/a-2.82% | n/a-4.84% | n/a-17.80% |
| Max drawdown duration | BTOT NUBD | 60d63d | n/a183d | n/a318d | n/a1812d |
Trading data
BTOT | NUBD | |
Last sale 9/1/2026 at 1:30 PM | $48.55 | $21.64 |
| Previous close 08/31/2026 | $48.86 | $21.76 |
| Consolidated volume 08/31/2026 | ||
| 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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BTOT | NUBD | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 9/1/2026 at 1:30 PM
Live
Closed
BTOT | NUBD | |
|---|---|---|
| Last price | $48.55 | $21.64 |
| 1D performance | -0.64% | -0.55% |
| AuM | $29.31 M | $489.66 M |
| E/R | 0.1% | 0.15% |
Characteristics
BTOT | NUBD | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Nuveen |
| Benchmark | Bloomberg US Total Fixed Income Market Index | Bloomberg MSCI US Agg ESG Select Index |
| N° of holdings | 1001 | 2126 |
| Asset class | - | Fixed Income |
| Trailing 12m distribution yield | Join | Join |
| Inception date | December 10, 2025 | September 29, 2017 |
| ESG | No | Yes |
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Exposure
Countries
BTOT
USA
76.56%
Other
23.44%
NUBD
USA
78.64%
Other
21.36%
Sectors
BTOT
Sovereign
44.98%
Finance
11.87%
Other
43.15%
NUBD
Sovereign
46.37%
Industrials
12.61%
Finance
11.06%
Other
29.96%
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Diversification
BTOT
Total weight of top 15 holdings out of 15
19.36%
NUBD
Total weight of top 15 holdings out of 15
14.13%
Top 15 holdings
Data as of July 31, 2026
BTOT
BlackRock Cash Funds - Institutional
5.64%
US31418EB825
1.92%
FR SD8212, 2.5% 1may2052, USD (ABS)
1.32%
USA, Notes 3.875% 31jul2027, USD (BE-2027)
1.08%
Benchmark Mortgage Trust 2025-V18, 5.18365% 18oct2058, USD (ABS, A3)
1.03%
USA, Notes 4.875% 31oct2030, USD (R-2030)
0.93%
USA, Notes 3.625% 31aug2027, USD (BG-2027)
0.86%
US3140XPXH76
0.86%
USA, Notes 3.375% 15sep2027, USD (AS-2027)
0.86%
US01F0204895
0.85%
USA, Notes 4% 31jul2032, USD (N-2032)
0.85%
USA, Notes 4% 30apr2032, USD (K-2032)
0.84%
US01F0326821
0.84%
USA, Notes 1.875% 15feb2032, USD (B-2032)
0.75%
US31418EDD94
0.74%
NUBD
USA, Notes 3.625% 30sep2030, USD (AD-2030)
1.67%
USA, Notes 4.125% 31oct2029, USD (AF-2029)
1.09%
US31418D7F32
1.08%
USA, Notes 3.75% 31dec2028, USD (AH-2028)
1.02%
USA, Notes 3.875% 31jul2030, USD (AB-2030)
1.00%
USA, Notes 3.625% 31oct2030, USD (AF-2030)
0.99%
USA, Notes 3.625% 31aug2029, USD (AC-2029)
0.98%
USA, Notes 4.25% 28feb2029, USD (V-2029)
0.84%
USA, Notes 3.625% 31dec2030, USD (AH-2030)
0.81%
USA, Notes 4.625% 30sep2028, USD (AD-2028)
0.81%
USA, Notes 3.875% 30apr2031, USD (Y-2031)
0.80%
USA, Notes 4.25% 30jun2029, USD (AA-2029)
0.79%
USA, Notes 3.5% 30sep2029, USD (AD-2029)
0.76%
USA, Notes 3.875% 30apr2030, USD (Y-2030)
0.74%
USA, Notes 3.5% 30nov2030, USD (AG-2030)
0.74%
Frequently asked questions about BTOT and NUBD
How have the BTOT and NUBD ETFs performed in 2026?
As of August 28, 2026, BTOT is up 0.23% year-to-date (YTD), while NUBD has lost -0.31%. That puts BTOT better performer ahead so far this year.
Which ETF is attracting more investor money: BTOT or NUBD?
Year-to-date, the BTOT ETF saw +$5M in flows, compared to +$40M for NUBD.
Which ETF is bigger: BTOT or NUBD?
As of August 28, 2026, BTOT holds $29.31 M in assets under management (AUM), while NUBD manages $489.66 M.
What sectors do the BTOT and NUBD ETFs invest in?
BTOT leans toward sectors like Sovereign and Finance. Meanwhile, NUBD focuses on Sovereign, Industrials and Finance.
What are the top holdings of the BTOT ETF and NUBD ETF?
BTOT top holdings include BlackRock Cash Funds - Institutional, US31418EB825 and FR SD8212, 2.5% 1may2052, USD (ABS). NUBD holds in its top three: USA, Notes 3.625% 30sep2030, USD (AD-2030), USA, Notes 4.125% 31oct2029, USD (AF-2029) and US31418D7F32.
Which ETF is more diversified: BTOT or NUBD?
BTOT holds 1055 securities with 19.36% of its assets in the top 15. NUBD has 2383 securities and a top 15 weight of 14.13%.
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