IBILvsSPTLETF Comparison
VS
ETF 2
SPTL
State Street SPDR Portfolio Long Term Treasury ETF
This fund is part of
US Government Bonds
+0.07%
iShares iBonds Oct 2035 Term TIPS ETF (IBIL) belongs to the Inflation-linked Bonds segment. State Street SPDR Portfolio Long Term Treasury ETF (SPTL) is part of the US Government Bonds segment. IBIL's top 2 sector exposures are Sovereign and Non-Corporate. In contrast, SPTL's top sector exposures are Sovereign. IBIL is more expensive with a Total Expense Ratio (TER) of 0.1%, versus 0.03% for SPTL. IBIL is down -1.77% year-to-date (YTD) with +$31M in YTD flows. SPTL performs worse with -4.73% YTD performance, and +$1.34B in YTD flows. Run a side-by-side ETF comparison of IBIL and SPTL 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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IBIL vs SPTL performance and flow charts
Performance
Cumulative Flows
Historic performance and flows
Data as of 10/16/2026
| 1M | 3M | YTD | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|---|---|
| Perf. | IBIL SPTL | -0.05%-0.59% | -2.53%-3.57% | -1.77%-4.73% | -2.53%-7.19% | n/a+8.25% | n/a-30.14% |
| Flows | IBIL SPTL | +$6M+$667M | +$17M+$1.40B | +$31M+$1.34B | +$43M+$148M | -+$5.31B | -+$10.82B |
Volatility and drawdown
| 3M | 1Y | 3Y | 5Y | ||
|---|---|---|---|---|---|
| Volatility | IBIL SPTL | +5.14%+9.61% | +4.65%+8.62% | n/a+11.80% | n/a+14.37% |
| Max drawdown | IBIL SPTL | -4.80%-7.06% | -5.61%-11.41% | n/a-13.74% | n/a-41.05% |
| Max drawdown duration | IBIL SPTL | 52d89d | 229d229d | n/a760d | n/a1776d |
Trading data
IBIL | SPTL | |
Last sale 10/16/2026 at 1:30 PM | $24.11 | $24.45 |
| Previous close 10/15/2026 | $24.03 | $24.45 |
| 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 September 30, 2026
1-year trailing difference
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IBIL | SPTL | |
|---|---|---|
| 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
IBIL | SPTL | |
|---|---|---|
| Last price | $24.11 | $24.45 |
| 1D performance | +0.33% | +0.00% |
| AuM | $52.94 M | $11.47 B |
| E/R | 0.1% | 0.03% |
Characteristics
IBIL | SPTL | |
|---|---|---|
| Management strategy | Passive | Passive |
| Provider | iShares | State Street Investment Management |
| Benchmark | ICE 2035 Maturity US Inflation-Linked Treasury Index | Bloomberg US Long Treasury Index |
| N° of holdings | 3 | 100 |
| Asset class | - | Bonds |
| Trailing 12m distribution yield | Join | Join |
| Inception date | March 26, 2025 | May 23, 2007 |
| ESG | No | No |
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Exposure
Countries
IBIL
USA
100%
Other
-0%
SPTL
USA
98.1%
Other
1.9%
Sectors
IBIL
Sovereign
100%
Other
0%
SPTL
Sovereign
98.1%
Other
1.9%
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Diversification
IBIL
Total weight of top 3 holdings out of 3
100%
SPTL
Total weight of top 15 holdings out of 15
29.18%
Top 15 holdings
Data as of August 31, 2026
IBIL
USA, TIPS 1.875% 15jul2035, USD (D-2035)
50.76%
USA, TIPS 2.125% 15jan2035, USD (A-2035)
49.23%
BlackRock Cash Funds - Treasury
0.01%
SPTL
USA, Bonds 5% 15may2056, USD
2.28%
USA, Bonds 4.75% 15feb2056, USD
2.19%
USA, Bonds 4.75% 15aug2055, USD
2.18%
USA, Bonds 4.75% 15may2055, USD
2.12%
USA, Bonds 4.625% 15may2054, USD
2.08%
USA, Bonds 4.625% 15nov2055, USD
2.08%
USA, Bonds 4.625% 15feb2055, USD
2.07%
USA, Bonds 4.5% 15nov2054, USD
2.04%
USA, Bonds 4.75% 15nov2053, USD
2.02%
USA, Bonds 4.25% 15aug2054, USD
1.95%
USA, Bonds 4.25% 15feb2054, USD
1.95%
USA, Bonds 4.125% 15aug2053, USD
1.74%
USA, Bonds 4% 15nov2052, USD
1.55%
USA, Bonds 1.75% 15aug2041, USD
1.50%
USA, Bonds 3.625% 15may2053, USD
1.44%
Frequently asked questions about IBIL and SPTL
How have the IBIL and SPTL ETFs performed in 2026?
As of October 16, 2026, IBIL is down -1.77% year-to-date (YTD), while SPTL has lost -4.73%. That puts IBIL better performer ahead so far this year.
Which ETF is attracting more investor money: IBIL or SPTL?
Year-to-date, the IBIL ETF saw +$31M in flows, compared to +$1.34B for SPTL.
Which ETF is more volatile: IBIL or SPTL?
Over the past year, IBIL had a volatility of 4.65%, while SPTL experienced 8.62%.
Which ETF is bigger: IBIL or SPTL?
As of October 16, 2026, IBIL holds $52.94 M in assets under management (AUM), while SPTL manages $11.47 B.
What sectors do the IBIL and SPTL ETFs invest in?
IBIL leans toward sectors like Sovereign. Meanwhile, SPTL focuses on Sovereign.
What are the top holdings of the IBIL ETF and SPTL ETF?
IBIL top holdings include USA, TIPS 1.875% 15jul2035, USD (D-2035), USA, TIPS 2.125% 15jan2035, USD (A-2035) and BlackRock Cash Funds - Treasury. SPTL holds in its top three: USA, Bonds 5% 15may2056, USD, USA, Bonds 4.75% 15feb2056, USD and USA, Bonds 4.75% 15aug2055, USD.
Which ETF is more diversified: IBIL or SPTL?
IBIL has 3 securities. SPTL has 101 securities and a top 15 weight of 29.18%.
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