IBTRvsGCORETF Comparison
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iShares iBonds Dec 2036 Term Treasury ETF (IBTR) belongs to the US Government Bonds segment. Goldman Sachs Access U.S. Aggregate Bond ETF (GCOR) is part of the US Aggregate Bonds segment. IBTR's top 2 sector exposures are Sovereign and Non-Corporate. In contrast, GCOR's top sector exposures are Sovereign, Finance and Industrials. IBTR is less expensive with a Total Expense Ratio (TER) of 0.07%, versus 0.09% for GCOR. Run a side-by-side ETF comparison of IBTR and GCOR 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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IBTR vs GCOR performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/23/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBTR GCOR | +1.25%+0.80% | -1.06%-0.54% | n/a-1.19% | n/a-1.30% | n/a+15.89% | n/a-2.52% |
| Flows | IBTR GCOR | +$80M+$2M | +$102M+$38M | -+$142M | -+$186M | -+$294M | -+$658M |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBTR GCOR | +6.20%+4.59% | n/a+3.88% | n/a+4.88% | n/a+5.99% |
| Max drawdown | IBTR GCOR | -4.65%-3.36% | n/a-4.82% | n/a-5.11% | n/a-18.04% |
| Max drawdown duration | IBTR GCOR | 59d59d | n/a236d | n/a318d | n/a1809d |
Trading data
IBTR | GCOR | |
Last sale 10/26/2026 at 2:10 PM | $23.99 | $39.83 |
| Previous close 10/23/2026 | $23.94 | $39.78 |
| 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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IBTR | GCOR | |
|---|---|---|
| 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 2:10 PM
Live
Closed
IBTR | GCOR | |
|---|---|---|
| Last price | $23.99 | $39.83 |
| 1D performance | +0.23% | +0.11% |
| AuM | $116.01 M | $811.72 M |
| E/R | 0.07% | 0.09% |
Characteristics
IBTR | GCOR | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | Goldman Sachs |
| Benchmark | ICE 2036 Maturity US Treasury Index | FTSE Goldman Sachs US Broad Bond Market Index |
| N° of holdings | 5 | 1639 |
| Asset class | - | Fixed Income |
| Trailing 12m distribution yield | Join | Join |
| Inception date | March 25, 2026 | September 8, 2020 |
| ESG | No | No |
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Exposure
Countries
IBTR
USA
86.34%
Other
13.66%
GCOR
USA
66.02%
Other
33.98%
Sectors
IBTR
Sovereign
85.23%
Other
14.77%
GCOR
Sovereign
44.13%
Finance
8.22%
Other
47.64%
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Diversification
IBTR
Total weight of top 5 holdings out of 5
100.75%
GCOR
Total weight of top 15 holdings out of 15
24.96%
Top 15 holdings
Data as of August 31, 2026
IBTR
USA, Notes 4.375% 15may2036, USD (C-2036)
41.72%
USA, Notes 4.125% 15feb2036, USD (B-2036)
40.49%
US91282CRF04
14.42%
USA, Bonds 4.5% 15feb2036, USD
3.02%
BlackRock Cash Funds - Treasury
1.11%
GCOR
USA, Notes 3.875% 30nov2029, USD (S-2029)
4.73%
USA, Notes 0.75% 31jan2028, USD (G-2028)
3.50%
USA, Notes 4% 31oct2029, USD (R-2029)
2.43%
USA, Notes 1.25% 15aug2031, USD (E-2031)
2.42%
US01F0506927
1.64%
USA, Notes 4% 15feb2034, USD (B-2034)
1.40%
USA, Notes 3.75% 15apr2028, USD (AM-2028)
1.38%
USA, Notes 2.875% 15may2032, USD (C-2032)
1.38%
USA, Notes 2.25% 15aug2027, USD (E-2027)
1.34%
US01F0526982
1.01%
US21H0506988
0.88%
US01F0306948
0.87%
USA, Bonds 2.5% 15feb2045, USD
0.67%
USA, Bonds 2.75% 15aug2042, USD
0.67%
USA, Notes 1.375% 15nov2031, USD (F-2031)
0.65%
Frequently asked questions about IBTR and GCOR
Which ETF is bigger: IBTR or GCOR?
As of October 23, 2026, IBTR holds $116.01 M in assets under management (AUM), while GCOR manages $811.72 M.
What sectors do the IBTR and GCOR ETFs invest in?
IBTR leans toward sectors like Sovereign. Meanwhile, GCOR focuses on Sovereign and Finance.
What are the top holdings of the IBTR ETF and GCOR ETF?
IBTR top holdings include USA, Notes 4.375% 15may2036, USD (C-2036), USA, Notes 4.125% 15feb2036, USD (B-2036) and US91282CRF04. GCOR holds in its top three: USA, Notes 3.875% 30nov2029, USD (S-2029), USA, Notes 0.75% 31jan2028, USD (G-2028) and USA, Notes 4% 31oct2029, USD (R-2029).
Which ETF is more diversified: IBTR or GCOR?
IBTR has 5 securities. GCOR has 1679 securities and a top 15 weight of 24.96%.
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Latest news about IBTR & GCOR
10-Year Treasury Yield Hits 5%: Which Bond ETFs Offer the Most Direct Exposure?
September 22, 2026
IBTR
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