ISTBvsBNDETF Comparison
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iShares Core 1-5 Year USD Bond ETF (ISTB) and Vanguard Total Bond Market ETF (BND) belong to the same industry segment: US Aggregate Bonds. Both ETFs have the same top 3 sector exposures: Sovereign, Finance and Industrials. ISTB is more expensive with a Total Expense Ratio (TER) of 0.06%, versus 0.03% for BND. ISTB is up 0.53% year-to-date (YTD) with +$765M in YTD flows. BND performs worse with -1.32% YTD performance, and +$26.06B in YTD flows. Run a side-by-side ETF comparison of ISTB and BND 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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ISTB vs BND performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/23/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | ISTB BND | +0.65%+0.86% | +0.13%-0.42% | +0.53%-1.32% | +1.21%-1.44% | +15.88%+16.00% | +10.33%-1.49% |
| Flows | ISTB BND | +$208M+$3.19B | +$303M+$8.01B | +$765M+$26.06B | +$892M+$30.84B | +$1.25B+$69.65B | -$427M+$100.07B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ISTB BND | +2.03%+4.55% | +1.81%+3.87% | +2.14%+4.81% | +2.68%+5.85% |
| Max drawdown | ISTB BND | -1.51%-3.20% | -1.51%-4.85% | -1.51%-4.85% | -8.72%-17.62% |
| Max drawdown duration | ISTB BND | 59d59d | 59d236d | 59d236d | 968d1564d |
Trading data
ISTB | BND | |
Last sale 10/26/2026 at 1:30 PM | $47.41 | $71.26 |
| Previous close 10/23/2026 | $47.44 | $71.20 |
| Consolidated volume 10/23/2026 | ||
| 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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ISTB | BND | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/26/2026 at 1:30 PM
Live
Closed
ISTB | BND | |
|---|---|---|
| Last price | $47.41 | $71.26 |
| 1D performance | -0.06% | +0.08% |
| AuM | $5.33 B | $165.87 B |
| E/R | 0.06% | 0.03% |
Characteristics
ISTB | BND | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Vanguard |
| Benchmark | Bloomberg U.S. Universal 1-5 Year Index | Bloomberg U.S. Aggregate Float Adjusted Index |
| N° of holdings | 6956 | 9485 |
| Asset class | Bonds | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | October 18, 2012 | April 3, 2007 |
| ESG | No | No |
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Exposure
Countries
ISTB
USA
77.86%
Other
22.14%
BND
USA
76.02%
Other
23.98%
Sectors
ISTB
Sovereign
54.43%
Finance
18.71%
Other
26.86%
BND
Sovereign
48.07%
Finance
10.83%
Industrials
7.38%
Other
33.72%
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Diversification
ISTB
Total weight of top 15 holdings out of 15
12.68%
BND
Total weight of top 15 holdings out of 15
5.83%
Top 15 holdings
Data as of August 31, 2026
ISTB
USA, Notes 3.875% 15jun2028, USD (AP-2028)
1.09%
USA, Notes 4.125% 30jun2031, USD (AA-2031)
1.06%
BlackRock Cash Funds - Institutional
1.06%
USA, Notes 4% 28feb2030, USD (H-2030)
0.91%
USA, Notes 3.625% 31oct2030, USD (AF-2030)
0.89%
USA, Notes 4.375% 31jul2031, USD (AB-2031)
0.87%
USA, Notes 3.5% 30nov2030, USD (AG-2030)
0.84%
USA, Notes 3.75% 31jan2031, USD (U-2031)
0.81%
USA, Notes 3.625% 30sep2030, USD (AD-2030)
0.81%
USA, Notes 3.625% 31aug2030, USD (AC-2030)
0.79%
USA, Notes 4% 31may2030, USD (Z-2030)
0.77%
USA, Notes 3.875% 15jul2028, USD (AQ-2028)
0.75%
USA, Notes 4% 31jul2029, USD (AB-2029)
0.74%
USA, Notes 4.5% 31may2029, USD (Z-2029)
0.66%
USA, Notes 4.25% 30jun2029, USD (AA-2029)
0.65%
BND
USA, Notes 3.5% 31jan2028, USD (U-2028)
0.47%
USA, Notes 4.25% 15nov2034, USD (F-2034)
0.41%
USA, Notes 4.375% 15may2034, USD (C-2034)
0.41%
USA, Notes 3.375% 30nov2027, USD (BL-2027)
0.41%
USA, Notes 4.625% 15feb2035, USD (B-2035)
0.41%
USA, Notes 3.875% 15aug2034, USD (E-2034)
0.41%
USA, Notes 4% 15feb2034, USD (B-2034)
0.40%
USA, Notes 4.125% 15feb2036, USD (B-2036)
0.40%
USA, Notes 4.25% 15aug2035, USD (E-2035)
0.38%
USA, Notes 4.5% 15nov2033, USD (F-2033)
0.38%
USA, Notes 4.25% 15may2035, USD (C-2035)
0.36%
USA, Notes 3.875% 15aug2033, USD (E-2033)
0.35%
USA, Notes 4% 28feb2030, USD (H-2030)
0.35%
USA, Notes 2.875% 15may2032, USD (C-2032)
0.35%
USA, Notes 1.25% 15aug2031, USD (E-2031)
0.34%
Frequently asked questions about ISTB and BND
How have the ISTB and BND ETFs performed in 2026?
As of October 23, 2026, ISTB is up 0.53% year-to-date (YTD), while BND has lost -1.32%. That puts ISTB better performer ahead so far this year.
Which ETF is attracting more investor money: ISTB or BND?
Year-to-date, the ISTB ETF saw +$765M in flows, compared to +$26.06B for BND.
Which ETF is more volatile: ISTB or BND?
Over the past year, ISTB had a volatility of 1.81%, while BND experienced 3.87%.
Which ETF is bigger: ISTB or BND?
As of October 23, 2026, ISTB holds $5.33 B in assets under management (AUM), while BND manages $165.87 B.
What sectors do the ISTB and BND ETFs invest in?
ISTB leans toward sectors like Sovereign and Finance. Meanwhile, BND focuses on Sovereign, Finance and Industrials.
What are the top holdings of the ISTB ETF and BND ETF?
ISTB top holdings include USA, Notes 3.875% 15jun2028, USD (AP-2028), USA, Notes 4.125% 30jun2031, USD (AA-2031) and BlackRock Cash Funds - Institutional. BND holds in its top three: USA, Notes 3.5% 31jan2028, USD (U-2028), USA, Notes 4.25% 15nov2034, USD (F-2034) and USA, Notes 4.375% 15may2034, USD (C-2034).
Which ETF is more diversified: ISTB or BND?
ISTB holds 7351 securities with 12.68% of its assets in the top 15. BND has 15076 securities and a top 15 weight of 5.83%.
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