VDTY.L vs. CU31.L
Compare and contrast key facts about Vanguard USD Treasury Bond UCITS ETF (VDTY.L) and iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L).
VDTY.L and CU31.L are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. VDTY.L is a passively managed fund by Vanguard that tracks the performance of the Bloomberg US Treasury Float Adjusted Index. It was launched on Mar 4, 2025. CU31.L is a passively managed fund by iShares that tracks the performance of the Bloomberg US Government TR USD. It was launched on Jun 3, 2009. Both VDTY.L and CU31.L are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
VDTY.L vs. CU31.L - Performance Comparison
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VDTY.L vs. CU31.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
VDTY.L Vanguard USD Treasury Bond UCITS ETF | -0.16% | 6.26% | 1.10% | 3.77% | -12.32% | -2.40% | 7.68% | 7.08% | 0.80% | 2.32% |
CU31.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.14% | 5.42% | 4.05% | 3.61% | -3.48% | -0.66% | 2.65% | 4.32% | 1.18% | -0.00% |
Different Trading Currencies
VDTY.L is traded in USD, while CU31.L is traded in GBp. To make them comparable, the CU31.L values have been converted to USD using the latest available exchange rates.
Returns By Period
In the year-to-date period, VDTY.L achieves a -0.16% return, which is significantly lower than CU31.L's 0.14% return. Over the past 10 years, VDTY.L has underperformed CU31.L with an annualized return of 0.99%, while CU31.L has yielded a comparatively higher 1.66% annualized return.
VDTY.L
- 1D
- 0.14%
- 1M
- -1.20%
- YTD
- -0.16%
- 6M
- 0.80%
- 1Y
- 3.03%
- 3Y*
- 2.74%
- 5Y*
- -0.18%
- 10Y*
- 0.99%
CU31.L
- 1D
- -0.13%
- 1M
- -0.63%
- YTD
- 0.14%
- 6M
- 1.26%
- 1Y
- 3.67%
- 3Y*
- 4.15%
- 5Y*
- 1.78%
- 10Y*
- 1.66%
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VDTY.L vs. CU31.L - Expense Ratio Comparison
VDTY.L has a 0.05% expense ratio, which is lower than CU31.L's 0.07% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.
Return for Risk
VDTY.L vs. CU31.L — Risk / Return Rank
VDTY.L
CU31.L
VDTY.L vs. CU31.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Vanguard USD Treasury Bond UCITS ETF (VDTY.L) and iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.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.
| VDTY.L | CU31.L | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.72 | 0.88 | -0.16 |
Sortino ratioReturn per unit of downside risk | 1.04 | 1.34 | -0.29 |
Omega ratioGain probability vs. loss probability | 1.13 | 1.16 | -0.03 |
Calmar ratioReturn relative to maximum drawdown | 0.97 | 3.07 | -2.10 |
Martin ratioReturn relative to average drawdown | 2.51 | 9.31 | -6.80 |
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
| VDTY.L | CU31.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.72 | 0.88 | -0.16 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.03 | 0.36 | -0.39 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.20 | 0.33 | -0.13 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.20 | 0.29 | -0.09 |
Correlation
The correlation between VDTY.L and CU31.L is 0.19, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
VDTY.L vs. CU31.L - Dividend Comparison
VDTY.L's dividend yield for the trailing twelve months is around 4.23%, while CU31.L has not paid dividends to shareholders.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | |
|---|---|---|---|---|---|---|---|---|---|---|---|
VDTY.L Vanguard USD Treasury Bond UCITS ETF | 4.23% | 4.29% | 4.31% | 3.40% | 2.09% | 1.21% | 1.54% | 2.34% | 2.33% | 1.57% | 0.99% |
CU31.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Drawdowns
VDTY.L vs. CU31.L - Drawdown Comparison
The maximum VDTY.L drawdown since its inception was -18.99%, which is greater than CU31.L's maximum drawdown of -7.27%. Use the drawdown chart below to compare losses from any high point for VDTY.L and CU31.L.
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Drawdown Indicators
| VDTY.L | CU31.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.99% | -18.80% | -0.19% |
Max Drawdown (1Y)Largest decline over 1 year | -3.23% | -6.51% | +3.28% |
Max Drawdown (5Y)Largest decline over 5 years | -16.60% | -16.29% | -0.31% |
Max Drawdown (10Y)Largest decline over 10 years | -18.99% | -18.80% | -0.19% |
Current DrawdownCurrent decline from peak | -6.69% | -7.04% | +0.35% |
Average DrawdownAverage peak-to-trough decline | -6.61% | -8.23% | +1.62% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.25% | 3.57% | -2.32% |
Volatility
VDTY.L vs. CU31.L - Volatility Comparison
The current volatility for Vanguard USD Treasury Bond UCITS ETF (VDTY.L) is 1.26%, while iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L) has a volatility of 1.59%. This indicates that VDTY.L experiences smaller price fluctuations and is considered to be less risky than CU31.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| VDTY.L | CU31.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.26% | 1.59% | -0.33% |
Volatility (6M)Calculated over the trailing 6-month period | 2.27% | 2.97% | -0.70% |
Volatility (1Y)Calculated over the trailing 1-year period | 4.20% | 4.16% | +0.04% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 5.52% | 4.98% | +0.54% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 4.85% | 5.02% | -0.17% |