CU31.L vs. USFR.L
CU31.L (iShares USD Treasury Bond 1-3yr UCITS ETF (Acc)) and USFR.L (WisdomTree USD Floating Rate Treasury Bond UCITS ETF USD) are both Government Bonds funds - CU31.L tracks the ICE US Treasury 1-3 Year Index while USFR.L tracks the Bloomberg US Treasury Floating Rate Bond Index. Both are passively managed. Over the past 5 years, CU31.L returned 2.90%/yr vs 4.70%/yr for USFR.L. A 0.78 correlation means they provide meaningful diversification when combined. CU31.L charges 0.07%/yr vs 0.15%/yr for USFR.L.
Performance
CU31.L vs. USFR.L - Performance Comparison
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Different Trading Currencies
CU31.L is traded in GBp, while USFR.L is traded in USD. To make them comparable, the USFR.L values have been converted to GBp using the latest available exchange rates.
Returns By Period
In the year-to-date period, CU31.L achieves a 0.54% return, which is significantly lower than USFR.L's 1.96% return.
CU31.L
- 1D
- 0.21%
- 1M
- 1.34%
- YTD
- 0.54%
- 6M
- 0.10%
- 1Y
- 4.10%
- 3Y*
- 1.60%
- 5Y*
- 2.90%
- 10Y*
- 2.51%
USFR.L
- 1D
- 0.30%
- 1M
- 1.61%
- YTD
- 1.96%
- 6M
- 1.38%
- 1Y
- 4.78%
- 3Y*
- 2.15%
- 5Y*
- 4.70%
- 10Y*
- —
CU31.L vs. USFR.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
CU31.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.54% | -1.98% | 5.81% | -1.58% | 7.82% | 0.48% | -0.40% | 2.72% |
USFR.L WisdomTree USD Floating Rate Treasury Bond UCITS ETF USD | 1.96% | -3.29% | 7.25% | -0.31% | 14.18% | 0.79% | -2.38% | 1.04% |
Correlation
The correlation between CU31.L and USFR.L is 0.76, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.76 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.77 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.77 |
Correlation (All Time) Calculated using the full available price history since Mar 27, 2019 | 0.78 |
The correlation between CU31.L and USFR.L has been stable across timeframes, ranging from 0.76 to 0.78 - a consistent structural relationship.
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Return for Risk
CU31.L vs. USFR.L — Risk / Return Rank
CU31.L
USFR.L
CU31.L vs. USFR.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L) and WisdomTree USD Floating Rate Treasury Bond UCITS ETF USD (USFR.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.
| CU31.L | USFR.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.05 | ||
| Sortino ratioReturn per unit of downside risk | -0.05 | ||
| Omega ratioGain probability vs. loss probability | 1.12 | 1.13 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 0.90 | 0.93 | -0.03 |
| Martin ratioReturn relative to average drawdown | 2.30 | 2.50 | -0.21 |
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
| CU31.L | USFR.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.67 | 0.72 | -0.05 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.36 | 0.55 | -0.19 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.27 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.28 | 0.29 | -0.01 |
Drawdowns
CU31.L vs. USFR.L - Drawdown Comparison
The maximum CU31.L drawdown since its inception was -18.80%, roughly equal to the maximum USFR.L drawdown of -18.16%. Use the drawdown chart below to compare losses from any high point for CU31.L and USFR.L.
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Drawdown Indicators
| CU31.L | USFR.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.80% | -18.16% | -0.64% |
Max Drawdown (1Y)Largest decline over 1 year | -4.51% | -5.09% | +0.58% |
Max Drawdown (3Y)Largest decline over 3 years | -8.91% | -9.80% | +0.89% |
Max Drawdown (5Y)Largest decline over 5 years | -16.29% | -15.70% | -0.59% |
Max Drawdown (10Y)Largest decline over 10 years | -18.80% | — | — |
Current DrawdownCurrent decline from peak | -7.72% | -5.94% | -1.78% |
Average DrawdownAverage peak-to-trough decline | -8.23% | -8.93% | +0.70% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.78% | 1.91% | -0.13% |
Volatility
CU31.L vs. USFR.L - Volatility Comparison
The current volatility for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L) is 1.65%, while WisdomTree USD Floating Rate Treasury Bond UCITS ETF USD (USFR.L) has a volatility of 1.93%. This indicates that CU31.L experiences smaller price fluctuations and is considered to be less risky than USFR.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CU31.L | USFR.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.65% | 1.93% | -0.28% |
Volatility (6M)Calculated over the trailing 6-month period | 4.46% | 5.05% | -0.59% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.11% | 6.64% | -0.53% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 8.05% | 8.60% | -0.55% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.19% | 8.90% | +0.29% |
CU31.L vs. USFR.L - Expense Ratio Comparison
CU31.L has a 0.07% expense ratio, which is lower than USFR.L's 0.15% 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%.
Dividends
CU31.L vs. USFR.L - Dividend Comparison
CU31.L has not paid dividends to shareholders, while USFR.L's dividend yield for the trailing twelve months is around 3.99%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
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% |
USFR.L WisdomTree USD Floating Rate Treasury Bond UCITS ETF USD | 3.99% | 4.32% | 5.24% | 4.58% | 0.78% | 0.00% | 0.57% | 1.09% |
Frequently Asked Questions
CU31.L and USFR.L have a correlation of 0.76, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, CU31.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.
CU31.L is cheaper with a 0.07% expense ratio, compared with 0.15% for USFR.L.
CU31.L tracks ICE US Treasury 1-3 Year Index, while USFR.L tracks Bloomberg US Treasury Floating Rate Bond Index. They also come from different issuers: iShares and WisdomTree. Their fees differ too: 0.07% for CU31.L and 0.15% for USFR.L.
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