U03A.L vs. PR1T.L

Last updated Jun 5, 2026

U03A.L (iShares USD Treasury Bond 0-3 Month UCITS ETF USD (Acc)) and PR1T.L (Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C)) are both exchange-traded funds - U03A.L is a Ultrashort Bond fund tracking the ICE 0-3 Month US Treasury Bill Index, while PR1T.L is a Government Bonds fund tracking the Solactive US Treasury 0-1 Year Bond Index. Both are passively managed. Over the past year, U03A.L returned 4.02% vs 3.94% for PR1T.L. At a 0.20 correlation, their price movements are largely independent. U03A.L charges 0.07%/yr vs 0.05%/yr for PR1T.L.

Performance

U03A.L vs. PR1T.L - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares USD Treasury Bond 0-3 Month UCITS ETF USD (Acc) (U03A.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

The year-to-date returns for both stocks are quite close, with U03A.L having a 1.51% return and PR1T.L slightly lower at 1.46%.

U03A.L

• 1D: 0.03%
• 1M: 0.29%
• YTD: 1.51%
• 6M: 1.81%
• 1Y: 4.02%
• 3Y*: —
• 5Y*: —
• 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)

U03A.L vs. PR1T.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024
U03A.L iShares USD Treasury Bond 0-3 Month UCITS ETF USD (Acc)	1.51%	4.22%	1.33%
PR1T.L Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C)	1.46%	4.22%	1.15%

Correlation

The correlation between U03A.L and PR1T.L is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.16
Correlation (All Time) Calculated using the full available price history since Sep 27, 2024	0.20

Return for Risk

U03A.L vs. PR1T.L — Risk / Return Rank

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

U03A.L

U03A.L Risk / Return Rank: 99
U03A.L Sharpe Ratio Rank: 99
U03A.L Sortino Ratio Rank: 99
U03A.L Omega Ratio Rank: 99
U03A.L Calmar Ratio Rank: 99
U03A.L Martin Ratio Rank: 99

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.

U03A.L vs. PR1T.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 0-3 Month UCITS ETF USD (Acc) (U03A.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.

	U03A.L	PR1T.L	Difference
Sharpe ratio: Return per unit of total volatility	8.85	12.95	-4.10
Sortino ratio: Return per unit of downside risk	20.41	36.41	-16.00
Omega ratio: Gain probability vs. loss probability	5.03	9.54	-4.52
Calmar ratio: Return relative to maximum drawdown	41.98	68.61	-26.63
Martin ratio: Return relative to average drawdown	274.18	521.85	-247.66
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

U03A.L vs. PR1T.L - Sharpe Ratio Comparison

The current U03A.L Sharpe Ratio is 8.85, which is lower than the PR1T.L Sharpe Ratio of 12.95. The chart below compares the historical Sharpe Ratios of U03A.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

	U03A.L	PR1T.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	8.85	12.95	-4.10
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	—	8.38	—
Sharpe Ratio (All Time) Calculated using the full available price history	4.99	7.41	-2.42

Drawdowns

U03A.L vs. PR1T.L - Drawdown Comparison

The maximum U03A.L drawdown since its inception was -0.83%, 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 U03A.L and PR1T.L.

Drawdown Indicators

	U03A.L	PR1T.L	Difference
Max Drawdown Largest peak-to-trough decline	-0.83%	-0.56%	-0.27%
Max Drawdown (1Y) Largest decline over 1 year	-0.10%	-0.06%	-0.04%
Max Drawdown (3Y) Largest decline over 3 years	—	-0.06%	—
Max Drawdown (5Y) Largest decline over 5 years	—	-0.56%	—
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-0.01%	-0.05%	+0.04%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.01%	0.01%	0.00%

Volatility

U03A.L vs. PR1T.L - Volatility Comparison

iShares USD Treasury Bond 0-3 Month UCITS ETF USD (Acc) (U03A.L) has a higher volatility of 0.13% compared to Amundi Prime US Treasury Bond 0-1 Y UCITS ETF DR USD (C) (PR1T.L) at 0.09%. This indicates that U03A.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

	U03A.L	PR1T.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.13%	0.09%	+0.04%
Volatility (6M) Calculated over the trailing 6-month period	0.26%	0.21%	+0.05%
Volatility (1Y) Calculated over the trailing 1-year period	0.45%	0.30%	+0.15%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	0.88%	0.39%	+0.49%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	0.88%	0.38%	+0.50%

U03A.L vs. PR1T.L - Expense Ratio Comparison

U03A.L has a 0.07% expense ratio, which is higher than PR1T.L's 0.05% 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

U03A.L vs. PR1T.L - Dividend Comparison

Neither U03A.L nor PR1T.L has paid dividends to shareholders.

Tickers have no history of dividend payments

Frequently Asked Questions

Can I hold both U03A.L and PR1T.L in my portfolio?

U03A.L and PR1T.L have a correlation of 0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which ETF is better, U03A.L or PR1T.L?

On fees, PR1T.L is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF is cheaper, U03A.L or PR1T.L?

PR1T.L is cheaper with a 0.05% expense ratio, compared with 0.07% for U03A.L.

What is the main difference between U03A.L and PR1T.L?

U03A.L is categorized as Ultrashort Bond, while PR1T.L is Government Bonds. U03A.L tracks ICE 0-3 Month US Treasury Bill Index, while PR1T.L tracks Solactive US Treasury 0-1 Year Bond Index. They also come from different issuers: iShares and Amundi. Their fees differ too: 0.07% for U03A.L and 0.05% for PR1T.L.