VDTA.L vs. VDTY.L

Last updated Jun 5, 2026

VDTA.L (Vanguard USD Treasury Bond UCITS ETF Accumulating) and VDTY.L (Vanguard USD Treasury Bond UCITS ETF) are both Government Bonds funds from Vanguard - VDTA.L tracks the Bloomberg Global Aggregate US Treasury Float Adjusted index while VDTY.L tracks the Bloomberg Global Aggregate US Treasury Float Adjusted Index. Both are passively managed. Over the past 5 years, VDTA.L returned -0.41%/yr vs -0.36%/yr for VDTY.L. With a 0.97 correlation, they move nearly in lockstep. Both charge a 0.05% expense ratio.

Performance

VDTA.L vs. VDTY.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Vanguard USD Treasury Bond UCITS ETF Accumulating (VDTA.L) and Vanguard USD Treasury Bond UCITS ETF (VDTY.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

As of year-to-date, both investments have demonstrated similar returns, with VDTA.L at -0.23% and VDTY.L at -0.23%.

VDTA.L

• 1D: 0.21%
• 1M: 0.17%
• YTD: -0.23%
• 6M: 0.10%
• 1Y: 3.61%
• 3Y*: 2.87%
• 5Y*: -0.41%
• 10Y*: —

VDTY.L

• 1D: 0.24%
• 1M: 0.17%
• YTD: -0.23%
• 6M: 0.04%
• 1Y: 3.47%
• 3Y*: 2.95%
• 5Y*: -0.36%
• 10Y*: 0.95%

*Multi-year figures are annualized to reflect compound growth (CAGR)

VDTA.L vs. VDTY.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
VDTA.L Vanguard USD Treasury Bond UCITS ETF Accumulating	-0.23%	6.25%	0.93%	3.71%	-12.37%	-2.33%	7.64%	6.63%
VDTY.L Vanguard USD Treasury Bond UCITS ETF	-0.23%	6.26%	1.10%	3.77%	-12.32%	-2.40%	7.68%	6.65%

Correlation

The correlation between VDTA.L and VDTY.L is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.97
Correlation (5Y) Calculated over the trailing 5-year period	0.98
Correlation (All Time) Calculated using the full available price history since Feb 22, 2019	0.97

The correlation between VDTA.L and VDTY.L has been stable across timeframes, ranging from 0.95 to 0.98 - a consistent structural relationship.

Return for Risk

VDTA.L vs. VDTY.L — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

VDTA.L

VDTA.L Risk / Return Rank: 28
VDTA.L Sharpe Ratio Rank: 29
VDTA.L Sortino Ratio Rank: 29
VDTA.L Omega Ratio Rank: 27
VDTA.L Calmar Ratio Rank: 26
VDTA.L Martin Ratio Rank: 28

VDTY.L

VDTY.L Risk / Return Rank: 27
VDTY.L Sharpe Ratio Rank: 28
VDTY.L Sortino Ratio Rank: 28
VDTY.L Omega Ratio Rank: 26
VDTY.L Calmar Ratio Rank: 25
VDTY.L Martin Ratio Rank: 27

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

VDTA.L vs. VDTY.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Vanguard USD Treasury Bond UCITS ETF Accumulating (VDTA.L) and Vanguard USD Treasury Bond UCITS ETF (VDTY.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.

	VDTA.L	VDTY.L	Difference
Sharpe ratio: Return per unit of total volatility	1.02	0.97	+0.05
Sortino ratio: Return per unit of downside risk	1.51	1.49	+0.02
Omega ratio: Gain probability vs. loss probability	1.18	1.17	+0.01
Calmar ratio: Return relative to maximum drawdown	1.23	1.16	+0.07
Martin ratio: Return relative to average drawdown	3.80	3.67	+0.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

VDTA.L vs. VDTY.L - Sharpe Ratio Comparison

The current VDTA.L Sharpe Ratio is 1.02, which is comparable to the VDTY.L Sharpe Ratio of 0.97. The chart below compares the historical Sharpe Ratios of VDTA.L and VDTY.L, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	VDTA.L	VDTY.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.02	0.97	+0.05
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.07	-0.07	-0.01
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.20	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.22	0.20	+0.03

Drawdowns

VDTA.L vs. VDTY.L - Drawdown Comparison

The maximum VDTA.L drawdown since its inception was -18.82%, roughly equal to the maximum VDTY.L drawdown of -18.99%. Use the drawdown chart below to compare losses from any high point for VDTA.L and VDTY.L.

Drawdown Indicators

	VDTA.L	VDTY.L	Difference
Max Drawdown Largest peak-to-trough decline	-18.82%	-18.99%	+0.17%
Max Drawdown (1Y) Largest decline over 1 year	-2.90%	-2.97%	+0.07%
Max Drawdown (3Y) Largest decline over 3 years	-5.15%	-5.35%	+0.20%
Max Drawdown (5Y) Largest decline over 5 years	-16.41%	-16.60%	+0.19%
Max Drawdown (10Y) Largest decline over 10 years	—	-18.99%	—
Current Drawdown Current decline from peak	-6.97%	-6.76%	-0.21%
Average Drawdown Average peak-to-trough decline	-8.11%	-6.62%	-1.49%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.94%	0.94%	0.00%

Volatility

VDTA.L vs. VDTY.L - Volatility Comparison

Vanguard USD Treasury Bond UCITS ETF Accumulating (VDTA.L) and Vanguard USD Treasury Bond UCITS ETF (VDTY.L) have volatilities of 1.37% and 1.42%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VDTA.L	VDTY.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.37%	1.42%	-0.05%
Volatility (6M) Calculated over the trailing 6-month period	2.55%	2.50%	+0.05%
Volatility (1Y) Calculated over the trailing 1-year period	3.51%	3.58%	-0.07%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.57%	5.54%	+0.03%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.35%	4.86%	+0.49%

VDTA.L vs. VDTY.L - Expense Ratio Comparison

Both VDTA.L and VDTY.L have an expense ratio of 0.05%, making them cost-effective options compared to the broader market, where average expense ratios typically range from 0.3% to 0.9%.

Dividends

VDTA.L vs. VDTY.L - Dividend Comparison

VDTA.L has not paid dividends to shareholders, while VDTY.L's dividend yield for the trailing twelve months is around 4.25%.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
VDTA.L Vanguard USD Treasury Bond UCITS ETF Accumulating	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%
VDTY.L Vanguard USD Treasury Bond UCITS ETF	4.25%	4.29%	4.31%	3.40%	2.09%	1.21%	1.54%	2.34%	2.33%	1.57%	0.99%

Frequently Asked Questions

Can I hold both VDTA.L and VDTY.L in my portfolio?

With a correlation of 0.95, VDTA.L and VDTY.L move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which ETF is better, VDTA.L or VDTY.L?

Both ETFs have the same 0.05% expense ratio. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, VDTA.L or VDTY.L?

VDTA.L and VDTY.L have the same expense ratio: 0.05% per year.

What is the main difference between VDTA.L and VDTY.L?

VDTA.L tracks Bloomberg Global Aggregate US Treasury Float Adjusted index, while VDTY.L tracks Bloomberg Global Aggregate US Treasury Float Adjusted Index.