IBTOvsGOVTETF Comparison
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iShares iBonds Dec 2033 Term Treasury ETF (IBTO) and iShares U.S. Treasury Bond ETF (GOVT) belong to the same industry segment: US Government Bonds. Both ETFs have the same top 2 sector exposures: Sovereign and Non-Corporate. IBTO is more expensive with a Total Expense Ratio (TER) of 0.07%, versus 0.05% for GOVT. IBTO is down -2.49% year-to-date (YTD) with +$96M in YTD flows. GOVT performs better with -1.41% YTD performance, and +$10.59B in YTD flows. Run a side-by-side ETF comparison of IBTO and GOVT 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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IBTO vs GOVT performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBTO GOVT | +0.21%+0.16% | -2.09%-1.39% | -2.49%-1.41% | -2.92%-1.80% | +12.56%+11.75% | n/a-3.89% |
| Flows | IBTO GOVT | +$44M+$926M | +$41M-$389M | +$96M+$10.59B | +$122M+$14.11B | +$460M+$19.43B | -+$31.18B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBTO GOVT | +4.46%+3.83% | +4.31%+3.56% | +6.13%+4.67% | n/a+5.68% |
| Max drawdown | IBTO GOVT | -3.59%-2.85% | -5.78%-4.44% | -6.89%-4.87% | n/a-16.15% |
| Max drawdown duration | IBTO GOVT | 52d52d | 229d229d | 318d318d | n/a1776d |
Trading data
IBTO | GOVT | |
Last sale 10/16/2026 at 1:30 PM | $23.20 | $22.08 |
| Previous close 10/15/2026 | $23.19 | $22.05 |
| Consolidated volume 10/15/2026 | ||
| Average volume 30 days | ||
| Average discount or premium 30 days | ||
| Average Bid/Ask spread 30 days |
Replication quality
Data as of October 19, 2026
1-year trailing difference
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IBTO | GOVT | |
|---|---|---|
| Tracking error | ||
| Tracking difference | ||
| 1 year cumulative return difference | ||
| Best | ||
| Worst | ||
| Daily return difference | ||
| Average | ||
| Worst | ||
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Main metrics
Last update 10/16/2026 at 1:30 PM
Live
Closed
IBTO | GOVT | |
|---|---|---|
| Last price | $23.20 | $22.08 |
| 1D performance | +0.05% | +0.14% |
| AuM | $502.34 M | $42.35 B |
| E/R | 0.07% | 0.05% |
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Exposure
Countries
IBTO
USA
100.17%
Other
-0.17%
GOVT
USA
99.58%
Other
0.42%
Sectors
IBTO
Sovereign
99.5%
Other
0.5%
GOVT
Sovereign
98.85%
Other
1.15%
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Diversification
IBTO
Total weight of top 12 holdings out of 12
100.17%
GOVT
Total weight of top 15 holdings out of 15
26.71%
Top 15 holdings
Data as of August 31, 2026
IBTO
USA, Notes 4.5% 15nov2033, USD (F-2033)
16.48%
USA, Notes 3.875% 15aug2033, USD (E-2033)
15.24%
USA, Notes 3.375% 15may2033, USD (C-2033)
13.71%
USA, Notes 3.5% 15feb2033, USD (B-2033)
13.40%
USA, Notes 4.25% 30jun2033, USD (M-2033)
6.51%
USA, Notes 4.25% 31may2033, USD (L-2033)
6.38%
USA, Notes 4.25% 31mar2033, USD (J-2033)
6.34%
USA, Notes 3.75% 28feb2033, USD (H-2033)
6.03%
USA, Notes 4% 31jan2033, USD (G-2033)
5.77%
USA, Notes 4.125% 30apr2033, USD (K-2033)
5.47%
USA, Notes 4.375% 31jul2033, USD (N-2033)
4.17%
BlackRock Cash Funds - Treasury
0.67%
GOVT
USA, Notes 1.375% 15nov2031, USD (F-2031)
5.28%
USA, Notes 2.625% 15feb2029, USD (B-2029)
2.96%
USA, Notes 3.125% 15nov2028, USD (F-2028)
2.10%
USA, Notes 2.75% 15feb2028, USD (B-2028)
1.93%
USA, Notes 2.875% 15may2028, USD (C-2028)
1.63%
USA, Bonds 2.5% 15may2046, USD
1.51%
USA, Bonds 2.75% 15nov2042, USD
1.49%
USA, Bonds 6.125% 15nov2027, USD
1.40%
USA, Bonds 3.75% 15nov2043, USD
1.39%
USA, Notes 2.25% 15nov2027, USD (F-2027)
1.37%
USA, Bonds 1.875% 15feb2051, USD
1.34%
USA, Notes 4% 31may2028, USD (BC-2028)
1.21%
USA, Notes 2.375% 15may2029, USD (C-2029)
1.08%
USA, Notes 4% 31may2030, USD (Z-2030)
1.02%
USA, Notes 3.875% 31mar2028, USD (AZ-2028)
0.99%
Frequently asked questions about IBTO and GOVT
How have the IBTO and GOVT ETFs performed in 2026?
As of October 16, 2026, IBTO is down -2.49% year-to-date (YTD), while GOVT has lost -1.41%. That puts GOVT better performer ahead so far this year.
Which ETF is attracting more investor money: IBTO or GOVT?
Year-to-date, the IBTO ETF saw +$96M in flows, compared to +$10.59B for GOVT.
Which ETF is more volatile: IBTO or GOVT?
Over the past year, IBTO had a volatility of 4.31%, while GOVT experienced 3.56%.
Which ETF is bigger: IBTO or GOVT?
As of October 16, 2026, IBTO holds $502.34 M in assets under management (AUM), while GOVT manages $42.35 B.
What sectors do the IBTO and GOVT ETFs invest in?
IBTO leans toward sectors like Sovereign. Meanwhile, GOVT focuses on Sovereign.
What are the top holdings of the IBTO ETF and GOVT ETF?
IBTO top holdings include USA, Notes 4.5% 15nov2033, USD (F-2033), USA, Notes 3.875% 15aug2033, USD (E-2033) and USA, Notes 3.375% 15may2033, USD (C-2033). GOVT holds in its top three: USA, Notes 1.375% 15nov2031, USD (F-2031), USA, Notes 2.625% 15feb2029, USD (B-2029) and USA, Notes 3.125% 15nov2028, USD (F-2028).
Which ETF is more diversified: IBTO or GOVT?
IBTO has 12 securities. GOVT has 219 securities and a top 15 weight of 26.71%.
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