PRIT.L vs. USTY.L

Last updated Jun 4, 2026

PRIT.L (Amundi Prime US Treasury UCITS ETF DR (D)) and USTY.L (SPDR Bloomberg US Treasury Bond UCITS ETF) are both Government Bonds funds - PRIT.L tracks the Solactive US Treasury Bond Index while USTY.L tracks the Bloomberg US Treasury Index. Both are passively managed. Over the past 5 years, PRIT.L returned 0.68%/yr vs 1.33%/yr for USTY.L. With a 0.98 correlation, they move nearly in lockstep. Both charge a 0.05% expense ratio.

Performance

PRIT.L vs. USTY.L - Performance Comparison

The chart below illustrates the hypothetical performance of a £10,000 investment in Amundi Prime US Treasury UCITS ETF DR (D) (PRIT.L) and SPDR Bloomberg US Treasury Bond UCITS ETF (USTY.L). The values are adjusted to include any dividend payments, if applicable.

Different Trading Currencies

PRIT.L is traded in GBp, while USTY.L is traded in GBP. To make them comparable, the USTY.L values have been converted to GBp using the latest available exchange rates.

Returns By Period

In the year-to-date period, PRIT.L achieves a -0.24% return, which is significantly lower than USTY.L's 0.45% return.

PRIT.L

• 1D: 0.02%
• 1M: 1.17%
• YTD: -0.24%
• 6M: -0.95%
• 1Y: 4.33%
• 3Y*: 0.28%
• 5Y*: 0.68%
• 10Y*: —

USTY.L

• 1D: 0.09%
• 1M: 1.19%
• YTD: 0.45%
• 6M: -0.21%
• 1Y: 5.82%
• 3Y*: 1.24%
• 5Y*: 1.33%
• 10Y*: 2.29%

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

PRIT.L vs. USTY.L - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019
PRIT.L Amundi Prime US Treasury UCITS ETF DR (D)	-0.24%	-1.06%	2.57%	-1.73%	-1.79%	-0.98%	4.03%	5.36%
USTY.L SPDR Bloomberg US Treasury Bond UCITS ETF	0.45%	0.10%	3.36%	-1.37%	-1.66%	-0.86%	4.57%	7.11%

Correlation

The correlation between PRIT.L and USTY.L is 0.96 - 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	0.96
Correlation (3Y) Calculated over the trailing 3-year period	0.98
Correlation (5Y) Calculated over the trailing 5-year period	0.99
Correlation (All Time) Calculated using the full available price history since Mar 15, 2019	0.98

The correlation between PRIT.L and USTY.L has been stable across timeframes, ranging from 0.96 to 0.99 - a consistent structural relationship.

Return for Risk

PRIT.L vs. USTY.L — Risk / Return Rank

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

PRIT.L

PRIT.L Risk / Return Rank: 20
PRIT.L Sharpe Ratio Rank: 22
PRIT.L Sortino Ratio Rank: 21
PRIT.L Omega Ratio Rank: 20
PRIT.L Calmar Ratio Rank: 20
PRIT.L Martin Ratio Rank: 18

USTY.L

USTY.L Risk / Return Rank: 24
USTY.L Sharpe Ratio Rank: 26
USTY.L Sortino Ratio Rank: 25
USTY.L Omega Ratio Rank: 24
USTY.L Calmar Ratio Rank: 24
USTY.L Martin Ratio Rank: 24

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.

PRIT.L vs. USTY.L - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Amundi Prime US Treasury UCITS ETF DR (D) (PRIT.L) and SPDR Bloomberg US Treasury Bond UCITS ETF (USTY.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.

	PRIT.L	USTY.L	Difference
Sharpe ratio: Return per unit of total volatility	0.71	0.91	-0.20
Sortino ratio: Return per unit of downside risk	1.09	1.36	-0.26
Omega ratio: Gain probability vs. loss probability	1.12	1.16	-0.04
Calmar ratio: Return relative to maximum drawdown	0.83	1.11	-0.28
Martin ratio: Return relative to average drawdown	1.98	3.06	-1.08
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PRIT.L vs. USTY.L - Sharpe Ratio Comparison

The current PRIT.L Sharpe Ratio is 0.71, which is comparable to the USTY.L Sharpe Ratio of 0.91. The chart below compares the historical Sharpe Ratios of PRIT.L and USTY.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

	PRIT.L	USTY.L	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.71	0.91	-0.20
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.08	0.15	-0.08
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	—	0.23	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.09	0.31	-0.22

Drawdowns

PRIT.L vs. USTY.L - Drawdown Comparison

The maximum PRIT.L drawdown since its inception was -20.06%, smaller than the maximum USTY.L drawdown of -23.02%. Use the drawdown chart below to compare losses from any high point for PRIT.L and USTY.L.

Drawdown Indicators

	PRIT.L	USTY.L	Difference
Max Drawdown Largest peak-to-trough decline	-20.06%	-23.02%	+2.96%
Max Drawdown (1Y) Largest decline over 1 year	-5.19%	-5.20%	+0.01%
Max Drawdown (3Y) Largest decline over 3 years	-8.33%	-7.75%	-0.58%
Max Drawdown (5Y) Largest decline over 5 years	-16.09%	-16.04%	-0.05%
Max Drawdown (10Y) Largest decline over 10 years	—	-23.02%	—
Current Drawdown Current decline from peak	-15.03%	-15.76%	+0.73%
Average Drawdown Average peak-to-trough decline	-12.54%	-12.04%	-0.50%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.19%	1.90%	+0.29%

Volatility

PRIT.L vs. USTY.L - Volatility Comparison

The current volatility for Amundi Prime US Treasury UCITS ETF DR (D) (PRIT.L) is 1.52%, while SPDR Bloomberg US Treasury Bond UCITS ETF (USTY.L) has a volatility of 2.22%. This indicates that PRIT.L experiences smaller price fluctuations and is considered to be less risky than USTY.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRIT.L	USTY.L	Difference
Volatility (1M) Calculated over the trailing 1-month period	1.52%	2.22%	-0.70%
Volatility (6M) Calculated over the trailing 6-month period	4.44%	4.79%	-0.35%
Volatility (1Y) Calculated over the trailing 1-year period	6.04%	6.36%	-0.32%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	8.89%	8.77%	+0.12%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	9.33%	10.02%	-0.69%

PRIT.L vs. USTY.L - Expense Ratio Comparison

Both PRIT.L and USTY.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

PRIT.L vs. USTY.L - Dividend Comparison

PRIT.L's dividend yield for the trailing twelve months is around 3.23%, less than USTY.L's 4.88% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016
PRIT.L Amundi Prime US Treasury UCITS ETF DR (D)	3.23%	3.22%	2.79%	2.34%	1.87%	1.74%	2.11%	0.00%	0.00%	0.00%	0.00%
USTY.L SPDR Bloomberg US Treasury Bond UCITS ETF	4.88%	4.61%	3.81%	2.81%	1.57%	1.31%	2.49%	2.79%	2.11%	2.11%	1.66%

Frequently Asked Questions

Can I hold both PRIT.L and USTY.L in my portfolio?

With a correlation of 0.96, PRIT.L and USTY.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, PRIT.L or USTY.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, PRIT.L or USTY.L?

PRIT.L and USTY.L have the same expense ratio: 0.05% per year.

What is the main difference between PRIT.L and USTY.L?

PRIT.L tracks Solactive US Treasury Bond Index, while USTY.L tracks Bloomberg US Treasury Index. They also come from different issuers: Amundi and State Street.