IBTA.L vs. VDPA.L
IBTA.L (iShares USD Treasury Bond 1-3yr UCITS ETF (Acc)) and VDPA.L (Vanguard USD Corporate Bond UCITS ETF USD Accumulation) are both exchange-traded funds - IBTA.L is a Government Bonds fund tracking the ICE US Treasury 1-3 Year Index, while VDPA.L is a Corporate Bonds fund tracking the Bloomberg Global Aggregate Corporate - United States Dollar Index. Both are passively managed. Over the past 5 years, IBTA.L returned 1.87%/yr vs 0.73%/yr for VDPA.L. A 0.56 correlation means they provide meaningful diversification when combined. Both charge a 0.07% expense ratio.
Performance
IBTA.L vs. VDPA.L - Performance Comparison
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Returns By Period
In the year-to-date period, IBTA.L achieves a 0.46% return, which is significantly higher than VDPA.L's 0.41% return.
IBTA.L
- 1D
- 0.13%
- 1M
- 0.13%
- YTD
- 0.46%
- 6M
- 0.92%
- 1Y
- 3.43%
- 3Y*
- 4.23%
- 5Y*
- 1.87%
- 10Y*
- —
VDPA.L
- 1D
- 0.31%
- 1M
- 0.52%
- YTD
- 0.41%
- 6M
- 0.81%
- 1Y
- 5.65%
- 3Y*
- 5.47%
- 5Y*
- 0.73%
- 10Y*
- —
IBTA.L vs. VDPA.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
IBTA.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.46% | 5.30% | 4.11% | 4.15% | -3.75% | -0.64% | 3.14% | 3.23% |
VDPA.L Vanguard USD Corporate Bond UCITS ETF USD Accumulation | 0.41% | 7.78% | 2.83% | 8.05% | -14.88% | -1.21% | 9.15% | 11.79% |
Correlation
The correlation between IBTA.L and VDPA.L is 0.65, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.65 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.65 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.63 |
Correlation (All Time) Calculated using the full available price history since Feb 22, 2019 | 0.56 |
The correlation between IBTA.L and VDPA.L has been stable across timeframes, ranging from 0.56 to 0.65 - a consistent structural relationship.
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Return for Risk
IBTA.L vs. VDPA.L — Risk / Return Rank
IBTA.L
VDPA.L
IBTA.L vs. VDPA.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (IBTA.L) and Vanguard USD Corporate Bond UCITS ETF USD Accumulation (VDPA.L). 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.
| IBTA.L | VDPA.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.55 | ||
| Sortino ratioReturn per unit of downside risk | +2.81 | ||
| Omega ratioGain probability vs. loss probability | 1.59 | 1.22 | +0.37 |
| Calmar ratioReturn relative to maximum drawdown | 4.62 | 2.08 | +2.54 |
| Martin ratioReturn relative to average drawdown | 17.47 | 6.51 | +10.96 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| IBTA.L | VDPA.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 2.80 | 1.25 | +1.55 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.93 | 0.11 | +0.83 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.08 | 0.33 | +0.75 |
Drawdowns
IBTA.L vs. VDPA.L - Drawdown Comparison
The maximum IBTA.L drawdown since its inception was -5.80%, smaller than the maximum VDPA.L drawdown of -21.43%. Use the drawdown chart below to compare losses from any high point for IBTA.L and VDPA.L.
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Drawdown Indicators
| IBTA.L | VDPA.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -5.80% | -21.43% | +15.63% |
Max Drawdown (1Y)Largest decline over 1 year | -0.74% | -2.70% | +1.96% |
Max Drawdown (3Y)Largest decline over 3 years | -0.89% | -5.60% | +4.71% |
Max Drawdown (5Y)Largest decline over 5 years | -5.70% | -21.43% | +15.73% |
Current DrawdownCurrent decline from peak | -0.13% | -0.80% | +0.67% |
Average DrawdownAverage peak-to-trough decline | -0.97% | -5.98% | +5.01% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.20% | 0.87% | -0.67% |
Volatility
IBTA.L vs. VDPA.L - Volatility Comparison
The current volatility for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (IBTA.L) is 0.43%, while Vanguard USD Corporate Bond UCITS ETF USD Accumulation (VDPA.L) has a volatility of 1.82%. This indicates that IBTA.L experiences smaller price fluctuations and is considered to be less risky than VDPA.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBTA.L | VDPA.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.43% | 1.82% | -1.39% |
Volatility (6M)Calculated over the trailing 6-month period | 0.86% | 3.59% | -2.73% |
Volatility (1Y)Calculated over the trailing 1-year period | 1.23% | 4.54% | -3.31% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 2.00% | 6.86% | -4.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 1.76% | 8.77% | -7.01% |
IBTA.L vs. VDPA.L - Expense Ratio Comparison
Both IBTA.L and VDPA.L have an expense ratio of 0.07%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.
Dividends
IBTA.L vs. VDPA.L - Dividend Comparison
Neither IBTA.L nor VDPA.L has paid dividends to shareholders.
Frequently Asked Questions
IBTA.L and VDPA.L have a correlation of 0.65, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
Both ETFs have the same 0.07% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.
IBTA.L and VDPA.L have the same expense ratio: 0.07% per year.
IBTA.L is categorized as Government Bonds, while VDPA.L is Corporate Bonds. IBTA.L tracks ICE US Treasury 1-3 Year Index, while VDPA.L tracks Bloomberg Global Aggregate Corporate - United States Dollar Index. They also come from different issuers: iShares and Vanguard.
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