CU31.L vs. BBIL.L
CU31.L (iShares USD Treasury Bond 1-3yr UCITS ETF (Acc)) and BBIL.L (JPM BetaBuilders US Treasury Bond 0-1 yr UCITS ETF USD Acc) are both exchange-traded funds - CU31.L is a Government Bonds fund tracking the ICE US Treasury 1-3 Year Index, while BBIL.L is a Short-Term Bond fund tracking the ICE BofA 0-1Y US Treasury TR USD. Both are passively managed. Over the past 5 years, CU31.L returned 2.92%/yr vs 4.47%/yr for BBIL.L. Their correlation of 0.80 suggests significant overlap in exposure. CU31.L charges 0.07%/yr vs 0.10%/yr for BBIL.L.
Performance
CU31.L vs. BBIL.L - Performance Comparison
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Different Trading Currencies
CU31.L is traded in GBp, while BBIL.L is traded in USD. To make them comparable, the BBIL.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 0.66% return, which is significantly lower than BBIL.L's 1.84% return.
CU31.L
- 1D
- 0.11%
- 1M
- 1.13%
- YTD
- 0.66%
- 6M
- 0.30%
- 1Y
- 4.42%
- 3Y*
- 1.49%
- 5Y*
- 2.92%
- 10Y*
- 2.48%
BBIL.L
- 1D
- 0.33%
- 1M
- 1.16%
- YTD
- 1.84%
- 6M
- 1.04%
- 1Y
- 4.90%
- 3Y*
- 2.08%
- 5Y*
- 4.47%
- 10Y*
- —
CU31.L vs. BBIL.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
CU31.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.66% | -1.98% | 5.81% | -1.58% | 7.82% | 0.48% | -0.40% | -4.79% |
BBIL.L JPM BetaBuilders US Treasury Bond 0-1 yr UCITS ETF USD Acc | 1.84% | -3.12% | 7.00% | -0.35% | 12.83% | 1.16% | -2.21% | -5.60% |
Correlation
The correlation between CU31.L and BBIL.L is 0.78, 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 | 0.78 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.80 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.79 |
Correlation (All Time) Calculated using the full available price history since Jul 17, 2019 | 0.80 |
The correlation between CU31.L and BBIL.L has been stable across timeframes, ranging from 0.78 to 0.80 - a consistent structural relationship.
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Return for Risk
CU31.L vs. BBIL.L — Risk / Return Rank
CU31.L
BBIL.L
CU31.L vs. BBIL.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 JPM BetaBuilders US Treasury Bond 0-1 yr UCITS ETF USD Acc (BBIL.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 | BBIL.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.01 | ||
| Sortino ratioReturn per unit of downside risk | +0.03 | ||
| Omega ratioGain probability vs. loss probability | 1.12 | 1.12 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 0.97 | 0.91 | +0.06 |
| Martin ratioReturn relative to average drawdown | 2.47 | 2.48 | -0.01 |
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 | BBIL.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.72 | 0.71 | +0.01 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.36 | 0.52 | -0.16 |
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 | 0.17 | +0.11 |
Drawdowns
CU31.L vs. BBIL.L - Drawdown Comparison
The maximum CU31.L drawdown since its inception was -18.80%, roughly equal to the maximum BBIL.L drawdown of -19.25%. Use the drawdown chart below to compare losses from any high point for CU31.L and BBIL.L.
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Drawdown Indicators
| CU31.L | BBIL.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.80% | -19.25% | +0.45% |
Max Drawdown (1Y)Largest decline over 1 year | -4.51% | -5.15% | +0.64% |
Max Drawdown (3Y)Largest decline over 3 years | -8.91% | -9.83% | +0.92% |
Max Drawdown (5Y)Largest decline over 5 years | -16.29% | -15.96% | -0.33% |
Max Drawdown (10Y)Largest decline over 10 years | -18.80% | — | — |
Current DrawdownCurrent decline from peak | -7.61% | -6.23% | -1.38% |
Average DrawdownAverage peak-to-trough decline | -8.23% | -9.86% | +1.63% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.78% | 1.90% | -0.12% |
Volatility
CU31.L vs. BBIL.L - Volatility Comparison
The current volatility for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L) is 1.63%, while JPM BetaBuilders US Treasury Bond 0-1 yr UCITS ETF USD Acc (BBIL.L) has a volatility of 1.76%. This indicates that CU31.L experiences smaller price fluctuations and is considered to be less risky than BBIL.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 | BBIL.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.63% | 1.76% | -0.13% |
Volatility (6M)Calculated over the trailing 6-month period | 4.46% | 5.00% | -0.54% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.11% | 6.61% | -0.50% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 8.05% | 8.54% | -0.49% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.19% | 8.91% | +0.28% |
CU31.L vs. BBIL.L - Expense Ratio Comparison
CU31.L has a 0.07% expense ratio, which is lower than BBIL.L's 0.10% 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. BBIL.L - Dividend Comparison
Neither CU31.L nor BBIL.L has paid dividends to shareholders.
Frequently Asked Questions
CU31.L and BBIL.L have a correlation of 0.78, 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 0.10% for BBIL.L.
CU31.L is categorized as Government Bonds, while BBIL.L is Short-Term Bond. CU31.L tracks ICE US Treasury 1-3 Year Index, while BBIL.L tracks ICE BofA 0-1Y US Treasury TR USD. They also come from different issuers: iShares and J.P. Morgan. Their fees differ too: 0.07% for CU31.L and 0.10% for BBIL.L.
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