IBTF vs. VGLT
IBTF (iShares iBonds Dec 2025 Term Treasury ETF) and VGLT (Vanguard Long-Term Treasury ETF) are both Government Bonds funds - IBTF tracks the ICE 2025 Maturity US Treasury Index while VGLT tracks the Bloomberg U.S. Long Treasury Index. Both are passively managed. Over the past 5 years, IBTF returned 0.80%/yr vs -7.20%/yr for VGLT. Their 0.54 correlation means they have sometimes moved together and sometimes differently. IBTF charges 0.07%/yr vs 0.03%/yr for VGLT.
Performance
IBTF vs. VGLT - Performance Comparison
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Returns By Period
IBTF
- 1D
- 0.00%
- 1M
- 0.00%
- 6M
- 0.00%
- YTD
- 0.00%
- 1Y
- 1.44%
- 3Y*
- 3.64%
- 5Y*
- 0.80%
- 10Y*
- —
- ALL TIME*
- 1.11%
VGLT
- 1D
- 0.37%
- 1M
- -3.15%
- 6M
- -2.54%
- YTD
- -2.90%
- 1Y
- -1.31%
- 3Y*
- -0.04%
- 5Y*
- -7.20%
- 10Y*
- -1.72%
- ALL TIME*
- 2.29%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $99.02M | $99.81M | $109.19M |
IBTF vs. VGLT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
IBTF iShares iBonds Dec 2025 Term Treasury ETF | 0.00% | 3.81% | 4.60% | 4.12% | -6.39% | -2.31% | 3.85% |
VGLT Vanguard Long-Term Treasury ETF | -2.90% | 5.35% | -6.28% | 3.27% | -29.34% | -4.98% | 5.04% |
Correlation
The correlation between IBTF and VGLT is -0.08, meaning there was essentially no consistent relationship between their historical price movements. Each responded to its own set of market drivers.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | -0.08 |
Correlation (3Y) Balances recent behavior with more history. | 0.27 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.50 |
Correlation (All Time) Calculated using the full available price history since Feb 28, 2020 | 0.54 |
The correlation between IBTF and VGLT shifts across timeframes, from -0.08 (1 year) to 0.54 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
IBTF vs. VGLT — Risk / Return Rank
IBTF
VGLT
IBTF vs. VGLT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares iBonds Dec 2025 Term Treasury ETF (IBTF) and Vanguard Long-Term Treasury ETF (VGLT). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| IBTF | VGLT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +6.12 | ||
| Sortino ratioReturn per unit of downside risk | +20.48 | ||
| Omega ratioGain probability vs. loss probability | 7.12 | 0.98 | +6.14 |
| Calmar ratioReturn relative to maximum drawdown | 39.94 | -0.19 | +40.13 |
| Martin ratioReturn relative to average drawdown | 258.91 | -0.41 | +259.32 |
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Drawdowns
IBTF vs. VGLT - Drawdown Comparison
The maximum IBTF drawdown since its inception was -10.45%, smaller than the maximum VGLT drawdown of -46.18%. Use the drawdown chart below to compare losses from any high point for IBTF and VGLT.
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Drawdown Indicators
| IBTF | VGLT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -10.45% | -46.18% | +35.73% |
Max Drawdown (1Y)Largest decline over 1 year | -0.04% | -7.03% | +6.99% |
Max Drawdown (3Y)Largest decline over 3 years | -0.43% | -13.38% | +12.95% |
Max Drawdown (5Y)Largest decline over 5 years | -9.35% | -40.98% | +31.63% |
Max Drawdown (10Y)Largest decline over 10 years | — | -46.18% | — |
Current DrawdownCurrent decline from peak | 0.00% | -38.41% | +38.41% |
Average DrawdownAverage peak-to-trough decline | -3.24% | -15.27% | +12.03% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.01% | 3.22% | -3.21% |
Volatility
IBTF vs. VGLT - Volatility Comparison
The current volatility for iShares iBonds Dec 2025 Term Treasury ETF (IBTF) is 0.00%, while Vanguard Long-Term Treasury ETF (VGLT) has a volatility of 2.30%. This indicates that IBTF experiences smaller price fluctuations and is considered to be less risky than VGLT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBTF | VGLT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.00% | 2.30% | -2.30% |
Volatility (6M)Calculated over the trailing 6-month period | 0.06% | 6.31% | -6.25% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.29% | 8.39% | -8.10% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.35% | 14.46% | -12.11% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.53% | 13.75% | -11.22% |
IBTF vs. VGLT - Expense Ratio Comparison
IBTF has a 0.07% expense ratio, which is higher than VGLT's 0.03% expense ratio. However, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Dividends
IBTF vs. VGLT - Dividend Comparison
IBTF's dividend yield for the trailing twelve months is around 1.37%, less than VGLT's 4.78% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
IBTF iShares iBonds Dec 2025 Term Treasury ETF | 1.37% | 3.83% | 4.32% | 4.03% | 1.93% | 0.57% | 0.59% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
VGLT Vanguard Long-Term Treasury ETF | 4.78% | 4.44% | 4.33% | 3.33% | 2.84% | 1.82% | 2.15% | 2.46% | 2.71% | 2.55% | 2.69% | 3.21% |
Frequently Asked Questions
IBTF and VGLT have a correlation of -0.08, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
VGLT has higher volatility (2.30%) compared to IBTF (0.00%). In terms of maximum drawdown, IBTF dropped -10.45% vs VGLT's -46.18%.
On 5-year performance, IBTF leads with 0.80% vs -7.20% for VGLT. On fees, VGLT is cheaper at 0.03% per year. On volatility, IBTF has been the lower-risk option at 0.00%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 5-year period, IBTF has performed better with a 0.80% return vs -7.20%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
VGLT is cheaper with a 0.03% expense ratio, compared with 0.07% for IBTF.
VGLT has the higher dividend yield at 4.78%, compared with 1.37% for IBTF.
IBTF tracks ICE 2025 Maturity US Treasury Index, while VGLT tracks Bloomberg U.S. Long Treasury Index. They also come from different issuers: iShares and Vanguard. Their fees differ too: 0.07% for IBTF and 0.03% for VGLT.
IBTF currently has the higher Sharpe Ratio (5.96 vs -0.16), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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