VDTA.L vs. PR1T.L

Last updated Jun 5, 2026

VDTA.L (Vanguard USD Treasury Bond UCITS ETF Accumulating) and PR1T.L (Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C)) are both Government Bonds funds - VDTA.L tracks the Bloomberg Global Aggregate US Treasury Float Adjusted index while PR1T.L tracks the Solactive US Treasury 0-1 Year Bond Index. Both are passively managed. Over the past 5 years, VDTA.L returned -0.41%/yr vs 3.24%/yr for PR1T.L. At a 0.27 correlation, their price movements are largely independent. Both charge a 0.05% expense ratio.

Performance

VDTA.L vs. PR1T.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 Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C) (PR1T.L). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, VDTA.L achieves a -0.23% return, which is significantly lower than PR1T.L's 1.46% return.

VDTA.L

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

PR1T.L

• 1D: 0.06%
• 1M: 0.28%
• YTD: 1.46%
• 6M: 1.75%
• 1Y: 3.94%
• 3Y*: 4.66%
• 5Y*: 3.24%
• 10Y*: —

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

VDTA.L vs. PR1T.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020
VDTA.L Vanguard USD Treasury Bond UCITS ETF Accumulating	-0.23%	6.25%	0.93%	3.71%	-12.37%	-2.33%	-0.98%
PR1T.L Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C)	1.46%	4.22%	5.20%	4.83%	0.61%	0.09%	-0.07%

Correlation

The correlation between VDTA.L and PR1T.L is 0.20, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.20
Correlation (3Y) Calculated over the trailing 3-year period	0.20
Correlation (5Y) Calculated over the trailing 5-year period	0.29
Correlation (All Time) Calculated using the full available price history since Sep 23, 2020	0.27

Return for Risk

VDTA.L vs. PR1T.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

PR1T.L

PR1T.L Risk / Return Rank: 100
PR1T.L Sharpe Ratio Rank: 100
PR1T.L Sortino Ratio Rank: 100
PR1T.L Omega Ratio Rank: 100
PR1T.L Calmar Ratio Rank: 100
PR1T.L Martin Ratio Rank: 100

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. PR1T.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 Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C) (PR1T.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	PR1T.L	Difference
Sharpe ratio: Return per unit of total volatility	1.02	12.95	-11.93
Sortino ratio: Return per unit of downside risk	1.51	36.41	-34.89
Omega ratio: Gain probability vs. loss probability	1.18	9.54	-8.36
Calmar ratio: Return relative to maximum drawdown	1.23	68.61	-67.37
Martin ratio: Return relative to average drawdown	3.80	521.85	-518.04
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. PR1T.L - Sharpe Ratio Comparison

The current VDTA.L Sharpe Ratio is 1.02, which is lower than the PR1T.L Sharpe Ratio of 12.95. The chart below compares the historical Sharpe Ratios of VDTA.L and PR1T.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	PR1T.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.02	12.95	-11.93
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	-0.07	8.38	-8.45
Sharpe Ratio (All Time) Calculated using the full available price history	0.22	7.41	-7.19

Drawdowns

VDTA.L vs. PR1T.L - Drawdown Comparison

The maximum VDTA.L drawdown since its inception was -18.82%, which is greater than PR1T.L's maximum drawdown of -0.56%. Use the drawdown chart below to compare losses from any high point for VDTA.L and PR1T.L.

Drawdown Indicators

	VDTA.L	PR1T.L	Difference
Max Drawdown Largest peak-to-trough decline	-18.82%	-0.56%	-18.26%
Max Drawdown (1Y) Largest decline over 1 year	-2.90%	-0.06%	-2.84%
Max Drawdown (3Y) Largest decline over 3 years	-5.15%	-0.06%	-5.09%
Max Drawdown (5Y) Largest decline over 5 years	-16.41%	-0.56%	-15.85%
Current Drawdown Current decline from peak	-6.97%	0.00%	-6.97%
Average Drawdown Average peak-to-trough decline	-8.11%	-0.05%	-8.06%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.94%	0.01%	+0.93%

Volatility

VDTA.L vs. PR1T.L - Volatility Comparison

Vanguard USD Treasury Bond UCITS ETF Accumulating (VDTA.L) has a higher volatility of 1.37% compared to Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C) (PR1T.L) at 0.09%. This indicates that VDTA.L's price experiences larger fluctuations and is considered to be riskier than PR1T.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	VDTA.L	PR1T.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.37%	0.09%	+1.28%
Volatility (6M) Calculated over the trailing 6-month period	2.55%	0.21%	+2.34%
Volatility (1Y) Calculated over the trailing 1-year period	3.51%	0.30%	+3.21%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	5.57%	0.39%	+5.18%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.35%	0.38%	+4.97%

VDTA.L vs. PR1T.L - Expense Ratio Comparison

Both VDTA.L and PR1T.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. PR1T.L - Dividend Comparison

Neither VDTA.L nor PR1T.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both VDTA.L and PR1T.L in my portfolio?

VDTA.L and PR1T.L have a correlation of 0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, VDTA.L or PR1T.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 PR1T.L?

VDTA.L and PR1T.L have the same expense ratio: 0.05% per year.

What is the main difference between VDTA.L and PR1T.L?

VDTA.L tracks Bloomberg Global Aggregate US Treasury Float Adjusted index, while PR1T.L tracks Solactive US Treasury 0-1 Year Bond Index. They also come from different issuers: Vanguard and Amundi.