ISTBvsUSIGETF Comparison
VS
ETF 2
USIG
iShares Broad USD Investment Grade Corporate Bond ETF
This fund is part of
US Corporate IG Bonds
-0.16%
iShares Core 1-5 Year USD Bond ETF (ISTB) belongs to the US Aggregate Bonds segment. iShares Broad USD Investment Grade Corporate Bond ETF (USIG) is part of the US Corporate IG Bonds segment. ISTB's top 3 sector exposures are Sovereign, Finance and Industrials. In contrast, USIG's top sector exposures are Finance, Utilities and Technology. ISTB is more expensive with a Total Expense Ratio (TER) of 0.06%, versus 0.04% for USIG. ISTB is up 0.53% year-to-date (YTD) with +$765M in YTD flows. USIG performs worse with -1.27% YTD performance, and +$3.14B in YTD flows. Run a side-by-side ETF comparison of ISTB and USIG 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 USIG 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 USIG | +0.65%+0.40% | +0.13%-0.71% | +0.53%-1.27% | +1.21%-1.57% | +15.88%+20.13% | +10.33%+1.01% |
| Flows | ISTB USIG | +$208M+$383M | +$303M+$1.01B | +$765M+$3.14B | +$892M+$3.76B | +$1.25B+$8.63B | -$427M+$12.84B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | ISTB USIG | +2.03%+4.77% | +1.81%+4.15% | +2.14%+5.07% | +2.68%+6.27% |
| Max drawdown | ISTB USIG | -1.51%-3.20% | -1.51%-4.40% | -1.51%-4.45% | -8.72%-21.22% |
| Max drawdown duration | ISTB USIG | 59d59d | 59d236d | 59d280d | 968d1401d |
Trading data
ISTB | USIG | |
Last sale 10/23/2026 at 1:30 PM | $47.44 | $49.35 |
| Previous close 10/22/2026 | $47.47 | $49.50 |
| Consolidated volume 10/22/2026 | ||
| 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 | USIG | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/23/2026 at 1:30 PM
Live
Closed
ISTB | USIG | |
|---|---|---|
| Last price | $47.44 | $49.35 |
| 1D performance | -0.06% | -0.30% |
| AuM | $5.33 B | $17.91 B |
| E/R | 0.06% | 0.04% |
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Exposure
Countries
ISTB
USA
77.86%
Other
22.14%
USIG
USA
76.15%
Other
23.85%
Sectors
ISTB
Sovereign
54.43%
Finance
18.71%
Other
26.86%
USIG
Finance
37.36%
Utilities
10.22%
Technology
8.05%
Energy
7.83%
Healthcare
7.16%
Other
29.38%
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Diversification
ISTB
Total weight of top 15 holdings out of 15
12.68%
USIG
Total weight of top 15 holdings out of 15
1.51%
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%
USIG
BlackRock Cash Funds - Treasury
0.55%
Mexico, 5.5% 17aug2030, USD
0.08%
Bank of America Corporation, 3.419% 20dec2028, USD
0.08%
Anheuser-Busch, 4.9% 1feb2046, USD
0.08%
US161175CU68
0.08%
T-Mobile USA, 3.875% 15apr2030, USD
0.07%
CVS Health, 5.05% 25mar2048, USD
0.07%
Space Exploration Technologies, 5.35% 15jul2031, USD
0.07%
Goldman Sachs, 4.148% 21jan2029, USD
0.06%
Goldman Sachs, 6.75% 1oct2037, USD
0.06%
US161175CV42
0.06%
Meta Platforms, 5.625% 15nov2055, USD
0.06%
Amazon.com, 4.875% 13mar2036, USD
0.06%
AbbVie, 3.2% 21nov2029, USD
0.06%
Space Exploration Technologies, 5.875% 15jul2036, USD
0.06%
Frequently asked questions about ISTB and USIG
How have the ISTB and USIG ETFs performed in 2026?
As of October 23, 2026, ISTB is up 0.53% year-to-date (YTD), while USIG has lost -1.27%. That puts ISTB better performer ahead so far this year.
Which ETF is attracting more investor money: ISTB or USIG?
Year-to-date, the ISTB ETF saw +$765M in flows, compared to +$3.14B for USIG.
Which ETF is more volatile: ISTB or USIG?
Over the past year, ISTB had a volatility of 1.81%, while USIG experienced 4.15%.
Which ETF is bigger: ISTB or USIG?
As of October 23, 2026, ISTB holds $5.33 B in assets under management (AUM), while USIG manages $17.91 B.
What sectors do the ISTB and USIG ETFs invest in?
ISTB leans toward sectors like Sovereign and Finance. Meanwhile, USIG focuses on Finance, Utilities and Technology.
What are the top holdings of the ISTB ETF and USIG 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. USIG holds in its top three: BlackRock Cash Funds - Treasury, Mexico, 5.5% 17aug2030, USD and Bank of America Corporation, 3.419% 20dec2028, USD.
Which ETF is more diversified: ISTB or USIG?
ISTB holds 7351 securities with 12.68% of its assets in the top 15. USIG has 11500 securities and a top 15 weight of 1.51%.
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Latest news about ISTB & USIG
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