BNDvsIUSBETF Comparison
VS
Vanguard Total Bond Market ETF (BND) and iShares Core Total USD Bond Market ETF (IUSB) belong to the same industry segment: US Aggregate Bonds. BND's top 3 sector exposures are Sovereign, Other sectors and Banks. In contrast, IUSB's top sector exposures are Sovereign, Banks and Other sectors. BND is less expensive with a Total Expense Ratio (TER) of 0.03%, versus 0.06% for IUSB. BND is up 0.14% year-to-date (YTD) with +$6.62B in YTD flows. IUSB performs better with 0.49% YTD performance, and +$2.02B in YTD flows. Run a side-by-side ETF comparison of BND 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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BND vs IUSB performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 04/09/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | BND IUSB | -0.95%-0.54% | -0.08%+0.26% | +0.14%+0.49% | +5.35%+6.34% | +10.94%+13.24% | +0.85%+3.28% |
| Flows | BND IUSB | +$451M+$639M | +$5.82B+$1.95B | +$6.62B+$2.02B | +$23.56B+$2.95B | +$60.48B+$14.15B | +$91.44B+$26.18B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | BND IUSB | +4.01%+3.86% | +3.89%+3.70% | +5.26%+5.02% | +5.82%+5.47% |
| Max drawdown | BND IUSB | -2.43%-2.47% | -2.43%-2.47% | -7.02%-6.50% | -18.10%-17.91% |
| Max drawdown duration | BND IUSB | 39d39d | 39d39d | 223d223d | 1725d1492d |
Trading data
BND | IUSB | |
Last sale 4/10/2026 at 2:03 PM | $73.71 | $46.30 |
| Previous close 04/09/2026 | $73.75 | $46.33 |
| Consolidated volume 04/09/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of March 31, 2026
1-year trailing difference
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BND | 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 4/10/2026 at 2:03 PM
Live
Closed
BND | IUSB | |
|---|---|---|
| Last price | $73.71 | $46.30 |
| 1D performance | -0.05% | -0.06% |
| AuM | $152.01 B | $36.28 B |
| E/R | 0.03% | 0.06% |
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Exposure
Countries
BND
USA
92.89%
Other
7.11%
IUSB
USA
90.02%
Other
9.98%
Sectors
BND
Sovereign
37.66%
Other
62.34%
IUSB
Sovereign
33.03%
Other
66.97%
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Diversification
BND
Total weight of top 15 holdings out of 15
5.92%
IUSB
Total weight of top 15 holdings out of 15
7.65%
Top 15 holdings
Data as of February 28, 2026
BND
USA, Notes 3.5% 31jan2028, USD (U-2028)
0.52%
USA, Notes 4% 15feb2034, USD (B-2034)
0.42%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.42%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.42%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.41%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.41%
US91282CPL99
0.41%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.39%
US91282CNT44
0.39%
USA, Notes 3.875% 15aug2033, USD (E-2033)
0.38%
US91282CNC19
0.36%
USA, Notes 4.125% 15nov2032, USD (F-2032)
0.36%
USA, Notes 2.875% 15may2032, USD (C-2032)
0.35%
USA, Notes 1.375% 15nov2031, USD (F-2031)
0.35%
USA, Notes 4% 28feb2030, USD (H-2030)
0.34%
IUSB
US09248U6432
2.60%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.39%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.39%
USA, Notes 4% 28feb2030, USD (H-2030)
0.38%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.38%
US91282CNC19
0.38%
USA, Notes 4% 15feb2034, USD (B-2034)
0.37%
US91282CPD73
0.36%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.35%
US91282CPJ44
0.35%
US91282CPA35
0.35%
US91282CNT44
0.34%
USA, Notes 3.875% 15aug2033, USD (E-2033)
0.34%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.34%
US31418DPC01
0.33%
Frequently asked questions about BND and IUSB
How have the BND and IUSB ETFs performed in 2026?
As of April 9, 2026, BND is up 0.14% year-to-date (YTD), while IUSB has returned 0.49%. That puts IUSB better performer ahead so far this year.
Which ETF is attracting more investor money: BND or IUSB?
Year-to-date, the BND ETF saw +$6.62B in flows, compared to +$2.02B for IUSB.
Which ETF is more volatile: BND or IUSB?
Over the past year, BND had a volatility of 3.89%, while IUSB experienced 3.7%.
Which ETF is bigger: BND or IUSB?
As of April 9, 2026, BND holds $152.01 B in assets under management (AUM), while IUSB manages $36.28 B.
What sectors do the BND and IUSB ETFs invest in?
BND leans toward sectors like Sovereign. Meanwhile, IUSB focuses on Sovereign.
What are the top holdings of the BND ETF and IUSB ETF?
BND top holdings include USA, Notes 3.5% 31jan2028, USD (U-2028), USA, Notes 4% 15feb2034, USD (B-2034) and USA, Notes 4.25% 15nov2034, USD (F-2034). IUSB holds in its top three: US09248U6432, USA, Notes 4.25% 15nov2034, USD (F-2034) and USA, Notes 4.375% 15may2034, USD (C-2034).
Which ETF is more diversified: BND or IUSB?
BND holds 15819 securities with 5.92% of its assets in the top 15. IUSB has 17706 securities and a top 15 weight of 7.65%.
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