MDBU.L vs. IBTU.L
MDBU.L (UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis) and IBTU.L (iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist)) are both Government Bonds funds - MDBU.L tracks the Solactive Global Multilateral Development Bank Bond USD 25% Issuer Capped Index while IBTU.L tracks the ICE U.S. Treasury Short Bond Index. Both are passively managed. Over the past 5 years, MDBU.L returned 2.03%/yr vs 4.49%/yr for IBTU.L. A 0.69 correlation means they provide meaningful diversification when combined. MDBU.L charges 0.18%/yr vs 0.07%/yr for IBTU.L.
Performance
MDBU.L vs. IBTU.L - Performance Comparison
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Different Trading Currencies
MDBU.L is traded in GBp, while IBTU.L is traded in USD. To make them comparable, the IBTU.L values have been converted to GBp using the latest available exchange rates.
Returns By Period
In the year-to-date period, MDBU.L achieves a 0.13% return, which is significantly lower than IBTU.L's 1.75% return.
MDBU.L
- 1D
- 0.17%
- 1M
- 0.98%
- YTD
- 0.13%
- 6M
- -0.22%
- 1Y
- 4.43%
- 3Y*
- 1.21%
- 5Y*
- 2.03%
- 10Y*
- —
IBTU.L
- 1D
- 0.00%
- 1M
- 1.18%
- YTD
- 1.75%
- 6M
- 1.03%
- 1Y
- 4.94%
- 3Y*
- 2.09%
- 5Y*
- 4.49%
- 10Y*
- —
MDBU.L vs. IBTU.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
MDBU.L UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis | 0.13% | -0.80% | 4.66% | -1.28% | 3.51% | -0.35% | 1.30% | 1.13% |
IBTU.L iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) | 1.80% | -3.07% | 7.07% | -0.29% | 13.11% | 0.93% | -2.00% | 0.34% |
Correlation
The correlation between MDBU.L and IBTU.L is 0.70, 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 | 0.70 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.72 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.71 |
Correlation (All Time) Calculated using the full available price history since Feb 25, 2019 | 0.69 |
The correlation between MDBU.L and IBTU.L has been stable across timeframes, ranging from 0.69 to 0.72 - a consistent structural relationship.
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Return for Risk
MDBU.L vs. IBTU.L — Risk / Return Rank
MDBU.L
IBTU.L
MDBU.L vs. IBTU.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis (MDBU.L) and iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) (IBTU.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.
| MDBU.L | IBTU.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.02 | ||
| Sortino ratioReturn per unit of downside risk | +0.01 | ||
| Omega ratioGain probability vs. loss probability | 1.13 | 1.13 | 0.00 |
| Calmar ratioReturn relative to maximum drawdown | 0.94 | 0.96 | -0.03 |
| Martin ratioReturn relative to average drawdown | 2.30 | 2.62 | -0.32 |
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
| MDBU.L | IBTU.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.73 | 0.75 | -0.02 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.24 | 0.53 | -0.29 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.13 | 0.27 | -0.14 |
Drawdowns
MDBU.L vs. IBTU.L - Drawdown Comparison
The maximum MDBU.L drawdown since its inception was -18.04%, smaller than the maximum IBTU.L drawdown of -19.01%. Use the drawdown chart below to compare losses from any high point for MDBU.L and IBTU.L.
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Drawdown Indicators
| MDBU.L | IBTU.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.04% | -19.01% | +0.97% |
Max Drawdown (1Y)Largest decline over 1 year | -4.76% | -5.12% | +0.36% |
Max Drawdown (3Y)Largest decline over 3 years | -7.99% | -9.80% | +1.81% |
Max Drawdown (5Y)Largest decline over 5 years | -16.15% | -15.91% | -0.24% |
Current DrawdownCurrent decline from peak | -9.05% | -6.09% | -2.96% |
Average DrawdownAverage peak-to-trough decline | -10.90% | -9.25% | -1.65% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.93% | 1.88% | +0.05% |
Volatility
MDBU.L vs. IBTU.L - Volatility Comparison
The current volatility for UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis (MDBU.L) is 1.66%, while iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) (IBTU.L) has a volatility of 1.77%. This indicates that MDBU.L experiences smaller price fluctuations and is considered to be less risky than IBTU.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| MDBU.L | IBTU.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 1.66% | 1.77% | -0.11% |
Volatility (6M)Calculated over the trailing 6-month period | 4.44% | 4.96% | -0.52% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.06% | 6.55% | -0.49% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 8.41% | 8.45% | -0.04% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 9.23% | 8.76% | +0.47% |
MDBU.L vs. IBTU.L - Expense Ratio Comparison
MDBU.L has a 0.18% expense ratio, which is higher than IBTU.L's 0.07% 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
MDBU.L vs. IBTU.L - Dividend Comparison
MDBU.L's dividend yield for the trailing twelve months is around 3.14%, less than IBTU.L's 4.07% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 |
|---|---|---|---|---|---|---|---|---|
IBTU.L iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) | 4.07% | 4.43% | 6.82% | 3.99% | 0.44% | 0.10% | 1.28% | 1.21% |
MDBU.L UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis | 3.14% | 3.96% | 2.14% | 1.92% | 0.75% | 0.74% | 1.73% | 1.66% |
Frequently Asked Questions
MDBU.L and IBTU.L have a correlation of 0.70, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, IBTU.L is cheaper at 0.07% per year. The better choice depends on whether you care most about return, fees, risk, or income.
IBTU.L is cheaper with a 0.07% expense ratio, compared with 0.18% for MDBU.L.
MDBU.L tracks Solactive Global Multilateral Development Bank Bond USD 25% Issuer Capped Index, while IBTU.L tracks ICE U.S. Treasury Short Bond Index. They also come from different issuers: UBS and iShares. Their fees differ too: 0.18% for MDBU.L and 0.07% for IBTU.L.
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