USTY.L vs. MDBU.L
USTY.L (SPDR Bloomberg US Treasury Bond UCITS ETF) and MDBU.L (UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis) are both Government Bonds funds - USTY.L tracks the Bloomberg US Treasury Index while MDBU.L tracks the Solactive Global Multilateral Development Bank Bond USD 25% Issuer Capped Index. Both are passively managed. Over the past 5 years, USTY.L returned 1.37%/yr vs 2.03%/yr for MDBU.L. Their correlation of 0.84 suggests significant overlap in exposure. USTY.L charges 0.05%/yr vs 0.18%/yr for MDBU.L.
Performance
USTY.L vs. MDBU.L - Performance Comparison
Loading charts...
Different Trading Currencies
USTY.L is traded in GBP, while MDBU.L is traded in GBp. To make them comparable, the MDBU.L values have been converted to GBP using the latest available exchange rates.
Returns By Period
In the year-to-date period, USTY.L achieves a 0.66% return, which is significantly higher than MDBU.L's 0.13% return.
USTY.L
- 1D
- 0.21%
- 1M
- 1.14%
- YTD
- 0.66%
- 6M
- 0.16%
- 1Y
- 6.01%
- 3Y*
- 1.22%
- 5Y*
- 1.37%
- 10Y*
- 2.28%
MDBU.L
- 1D
- 0.17%
- 1M
- 0.98%
- YTD
- 0.13%
- 6M
- -0.22%
- 1Y
- 4.43%
- 3Y*
- 1.21%
- 5Y*
- 2.03%
- 10Y*
- —
USTY.L vs. MDBU.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
USTY.L SPDR Bloomberg US Treasury Bond UCITS ETF | 0.66% | 0.10% | 3.36% | -1.37% | -1.66% | -0.86% | 4.57% | 4.20% | -0.40% |
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% | 0.00% |
Correlation
The correlation between USTY.L and MDBU.L is 0.90, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.90 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.91 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.89 |
Correlation (All Time) Calculated using the full available price history since Dec 20, 2018 | 0.84 |
The correlation between USTY.L and MDBU.L has been stable across timeframes, ranging from 0.84 to 0.91 - a consistent structural relationship.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
USTY.L vs. MDBU.L — Risk / Return Rank
USTY.L
MDBU.L
USTY.L vs. MDBU.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for SPDR Bloomberg US Treasury Bond UCITS ETF (USTY.L) and UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis (MDBU.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.
| USTY.L | MDBU.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.21 | ||
| Sortino ratioReturn per unit of downside risk | +0.27 | ||
| Omega ratioGain probability vs. loss probability | 1.17 | 1.13 | +0.04 |
| Calmar ratioReturn relative to maximum drawdown | 1.15 | 0.94 | +0.22 |
| Martin ratioReturn relative to average drawdown | 3.15 | 2.30 | +0.85 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| USTY.L | MDBU.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.94 | 0.73 | +0.21 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.16 | 0.24 | -0.09 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.23 | — | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.31 | 0.13 | +0.18 |
Drawdowns
USTY.L vs. MDBU.L - Drawdown Comparison
The maximum USTY.L drawdown since its inception was -23.02%, which is greater than MDBU.L's maximum drawdown of -18.04%. Use the drawdown chart below to compare losses from any high point for USTY.L and MDBU.L.
Loading charts...
Drawdown Indicators
| USTY.L | MDBU.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -23.02% | -18.04% | -4.98% |
Max Drawdown (1Y)Largest decline over 1 year | -5.20% | -4.76% | -0.44% |
Max Drawdown (3Y)Largest decline over 3 years | -7.75% | -7.99% | +0.24% |
Max Drawdown (5Y)Largest decline over 5 years | -16.04% | -16.15% | +0.11% |
Max Drawdown (10Y)Largest decline over 10 years | -23.02% | — | — |
Current DrawdownCurrent decline from peak | -15.58% | -9.05% | -6.53% |
Average DrawdownAverage peak-to-trough decline | -12.04% | -10.90% | -1.14% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 1.90% | 1.93% | -0.03% |
Volatility
USTY.L vs. MDBU.L - Volatility Comparison
SPDR Bloomberg US Treasury Bond UCITS ETF (USTY.L) has a higher volatility of 2.21% compared to UBS ETF (LU) Sustainable Development Bank Bonds UCITS ETF (USD) A-dis (MDBU.L) at 1.66%. This indicates that USTY.L's price experiences larger fluctuations and is considered to be riskier than MDBU.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| USTY.L | MDBU.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.21% | 1.66% | +0.55% |
Volatility (6M)Calculated over the trailing 6-month period | 4.79% | 4.44% | +0.35% |
Volatility (1Y)Calculated over the trailing 1-year period | 6.35% | 6.06% | +0.29% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 8.77% | 8.41% | +0.36% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 10.02% | 9.23% | +0.79% |
USTY.L vs. MDBU.L - Expense Ratio Comparison
USTY.L has a 0.05% expense ratio, which is lower than MDBU.L's 0.18% 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
USTY.L vs. MDBU.L - Dividend Comparison
USTY.L's dividend yield for the trailing twelve months is around 4.87%, more than MDBU.L's 3.14% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 |
|---|---|---|---|---|---|---|---|---|---|---|---|
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% | 0.00% | 0.00% | 0.00% |
USTY.L SPDR Bloomberg US Treasury Bond UCITS ETF | 4.87% | 4.61% | 3.81% | 2.81% | 1.57% | 1.31% | 2.49% | 2.79% | 2.11% | 2.11% | 1.66% |
Frequently Asked Questions
USTY.L and MDBU.L have a correlation of 0.90, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, USTY.L is cheaper at 0.05% per year. The better choice depends on whether you care most about return, fees, risk, or income.
USTY.L is cheaper with a 0.05% expense ratio, compared with 0.18% for MDBU.L.
USTY.L tracks Bloomberg US Treasury Index, while MDBU.L tracks Solactive Global Multilateral Development Bank Bond USD 25% Issuer Capped Index. They also come from different issuers: State Street and UBS. Their fees differ too: 0.05% for USTY.L and 0.18% for MDBU.L.
Find the right allocation for USTY.L and MDBU.L
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer