CU31.L vs. WLDS.L
CU31.L (iShares USD Treasury Bond 1-3yr UCITS ETF (Acc)) and WLDS.L (iShares MSCI World Small Cap UCITS ETF) are both exchange-traded funds - CU31.L is a Government Bonds fund tracking the ICE US Treasury 1-3 Year Index, while WLDS.L is a Small Cap Blend Equities fund tracking the MSCI World Small Cap Index. Both are passively managed. Over the past 5 years, CU31.L returned 2.41%/yr vs 8.07%/yr for WLDS.L. At a correlation of -0.04, they often move in opposite directions. CU31.L charges 0.07%/yr vs 0.35%/yr for WLDS.L.
Performance
CU31.L vs. WLDS.L - Performance Comparison
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Different Trading Currencies
CU31.L is traded in GBp, while WLDS.L is traded in GBP. To make them comparable, the WLDS.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 0.82% return, which is significantly lower than WLDS.L's 13.19% return.
CU31.L
- 1D
- 0.27%
- 1M
- -0.21%
- 6M
- 0.40%
- YTD
- 0.82%
- 1Y
- 2.96%
- 3Y*
- 3.27%
- 5Y*
- 2.41%
- 10Y*
- 1.49%
WLDS.L
- 1D
- -0.91%
- 1M
- -2.80%
- 6M
- 6.41%
- YTD
- 13.19%
- 1Y
- 24.23%
- 3Y*
- 13.76%
- 5Y*
- 8.07%
- 10Y*
- —
CU31.L vs. WLDS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
CU31.L iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) | 0.82% | -1.98% | 5.81% | -1.58% | 7.69% | 0.60% | -0.40% | 0.29% | 12.04% |
WLDS.L iShares MSCI World Small Cap UCITS ETF | 13.19% | 11.75% | 8.63% | 11.26% | -8.89% | 16.71% | 12.54% | 20.41% | -31.05% |
Correlation
The correlation between CU31.L and WLDS.L is -0.08, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.08 |
Correlation (3Y) Calculated over the trailing 3-year period | -0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | -0.14 |
Correlation (All Time) Calculated using the full available price history since Mar 27, 2018 | -0.04 |
The correlation between CU31.L and WLDS.L shifts across timeframes, from -0.14 (5 years) to -0.04 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
CU31.L vs. WLDS.L — Risk / Return Rank
CU31.L
WLDS.L
CU31.L vs. WLDS.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 iShares MSCI World Small Cap UCITS ETF (WLDS.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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| CU31.L | WLDS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.35 | ||
| Sortino ratioReturn per unit of downside risk | -1.89 | ||
| Omega ratioGain probability vs. loss probability | 1.09 | 1.33 | -0.24 |
| Calmar ratioReturn relative to maximum drawdown | 0.65 | 3.07 | -2.42 |
| Martin ratioReturn relative to average drawdown | 1.63 | 11.12 | -9.48 |
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Drawdowns
CU31.L vs. WLDS.L - Drawdown Comparison
The maximum CU31.L drawdown since its inception was -21.14%, smaller than the maximum WLDS.L drawdown of -43.18%. Use the drawdown chart below to compare losses from any high point for CU31.L and WLDS.L.
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Drawdown Indicators
| CU31.L | WLDS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -21.14% | -43.18% | +22.04% |
Max Drawdown (1Y)Largest decline over 1 year | -4.51% | -7.86% | +3.35% |
Max Drawdown (3Y)Largest decline over 3 years | -21.14% | -21.53% | +0.39% |
Max Drawdown (5Y)Largest decline over 5 years | -21.14% | -21.53% | +0.39% |
Max Drawdown (10Y)Largest decline over 10 years | -21.14% | — | — |
Current DrawdownCurrent decline from peak | -16.72% | -4.14% | -12.58% |
Average DrawdownAverage peak-to-trough decline | -8.21% | -12.15% | +3.94% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.81% | 2.17% | -0.36% |
Volatility
CU31.L vs. WLDS.L - Volatility Comparison
The current volatility for iShares USD Treasury Bond 1-3yr UCITS ETF (Acc) (CU31.L) is 1.27%, while iShares MSCI World Small Cap UCITS ETF (WLDS.L) has a volatility of 4.20%. This indicates that CU31.L experiences smaller price fluctuations and is considered to be less risky than WLDS.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 | WLDS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.27% | 4.20% | -2.93% |
Volatility (6M)Calculated over the trailing 6-month period | 4.46% | 10.21% | -5.75% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.05% | 13.19% | -7.14% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.19% | 20.34% | -4.15% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 13.09% | 22.37% | -9.28% |
CU31.L vs. WLDS.L - Expense Ratio Comparison
CU31.L has a 0.07% expense ratio, which is lower than WLDS.L's 0.35% expense ratio.
Dividends
CU31.L vs. WLDS.L - Dividend Comparison
Neither CU31.L nor WLDS.L has paid dividends to shareholders.
Frequently Asked Questions
CU31.L and WLDS.L have a correlation of -0.08, 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 0.35% for WLDS.L.
CU31.L is categorized as Government Bonds, while WLDS.L is Small Cap Blend Equities. CU31.L tracks ICE US Treasury 1-3 Year Index, while WLDS.L tracks MSCI World Small Cap Index. Their fees differ too: 0.07% for CU31.L and 0.35% for WLDS.L.
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