IBTU.L vs. ERNS.L
IBTU.L (iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist)) and ERNS.L (iShares £ Ultrashort Bond UCITS ETF GBP (Dist)) are both exchange-traded funds - IBTU.L is a Government Bonds fund tracking the ICE U.S. Treasury Short Bond Index, while ERNS.L is a Ultrashort Bond fund actively managed by iShares. IBTU.L is passively managed, while ERNS.L is actively managed. Over the past 5 years, IBTU.L returned 3.38%/yr vs 2.53%/yr for ERNS.L. At a 0.06 correlation, their price movements are largely independent. IBTU.L charges 0.07%/yr vs 0.09%/yr for ERNS.L.
Performance
IBTU.L vs. ERNS.L - Performance Comparison
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Different Trading Currencies
IBTU.L is traded in USD, while ERNS.L is traded in GBP. To make them comparable, the ERNS.L values have been converted to USD using the latest available exchange rates.
Returns By Period
The year-to-date returns for both stocks are quite close, with IBTU.L having a 1.39% return and ERNS.L slightly lower at 1.34%.
IBTU.L
- 1D
- 0.01%
- 1M
- 0.28%
- YTD
- 1.39%
- 6M
- 1.77%
- 1Y
- 3.95%
- 3Y*
- 4.74%
- 5Y*
- 3.38%
- 10Y*
- —
ERNS.L
- 1D
- 0.11%
- 1M
- -0.49%
- YTD
- 1.34%
- 6M
- 2.76%
- 1Y
- 3.45%
- 3Y*
- 7.82%
- 5Y*
- 2.53%
- 10Y*
- 1.46%
IBTU.L vs. ERNS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | |
|---|---|---|---|---|---|---|---|---|
IBTU.L iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) | 1.39% | 4.36% | 5.23% | 4.96% | 1.09% | -0.01% | 0.96% | 1.94% |
ERNS.L iShares £ Ultrashort Bond UCITS ETF GBP (Dist) | 1.34% | 12.76% | 3.78% | 10.28% | -9.32% | -0.78% | 3.86% | 2.43% |
Correlation
The correlation between IBTU.L and ERNS.L is 0.09, 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 | 0.09 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.06 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.09 |
Correlation (All Time) Calculated using the full available price history since Feb 25, 2019 | 0.06 |
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Return for Risk
IBTU.L vs. ERNS.L — Risk / Return Rank
IBTU.L
ERNS.L
IBTU.L vs. ERNS.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) (IBTU.L) and iShares £ Ultrashort Bond UCITS ETF GBP (Dist) (ERNS.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.
| IBTU.L | ERNS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +7.61 | ||
| Sortino ratioReturn per unit of downside risk | +16.47 | ||
| Omega ratioGain probability vs. loss probability | 3.95 | 1.09 | +2.86 |
| Calmar ratioReturn relative to maximum drawdown | 24.79 | 0.83 | +23.95 |
| Martin ratioReturn relative to average drawdown | 183.92 | 1.86 | +182.06 |
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
| IBTU.L | ERNS.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 8.12 | 0.51 | +7.61 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 6.79 | 0.29 | +6.50 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.15 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 5.05 | 0.06 | +5.00 |
Drawdowns
IBTU.L vs. ERNS.L - Drawdown Comparison
The maximum IBTU.L drawdown since its inception was -0.62%, smaller than the maximum ERNS.L drawdown of -34.17%. Use the drawdown chart below to compare losses from any high point for IBTU.L and ERNS.L.
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Drawdown Indicators
| IBTU.L | ERNS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -0.62% | -34.17% | +33.55% |
Max Drawdown (1Y)Largest decline over 1 year | -0.16% | -4.13% | +3.97% |
Max Drawdown (3Y)Largest decline over 3 years | -0.16% | -7.89% | +7.73% |
Max Drawdown (5Y)Largest decline over 5 years | -0.29% | -24.43% | +24.14% |
Max Drawdown (10Y)Largest decline over 10 years | — | -24.90% | — |
Current DrawdownCurrent decline from peak | 0.00% | -1.54% | +1.54% |
Average DrawdownAverage peak-to-trough decline | -0.03% | -16.12% | +16.09% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.02% | 1.85% | -1.83% |
Volatility
IBTU.L vs. ERNS.L - Volatility Comparison
The current volatility for iShares USD Treasury Bond 0-1yr UCITS ETF USD (Dist) (IBTU.L) is 0.08%, while iShares £ Ultrashort Bond UCITS ETF GBP (Dist) (ERNS.L) has a volatility of 1.95%. This indicates that IBTU.L experiences smaller price fluctuations and is considered to be less risky than ERNS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IBTU.L | ERNS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.08% | 1.95% | -1.87% |
Volatility (6M)Calculated over the trailing 6-month period | 0.31% | 5.00% | -4.69% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.49% | 6.73% | -6.24% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.50% | 8.62% | -8.12% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.54% | 9.41% | -8.87% |
IBTU.L vs. ERNS.L - Expense Ratio Comparison
IBTU.L has a 0.07% expense ratio, which is lower than ERNS.L's 0.09% 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
IBTU.L vs. ERNS.L - Dividend Comparison
IBTU.L's dividend yield for the trailing twelve months is around 4.07%, less than ERNS.L's 5.65% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ERNS.L iShares £ Ultrashort Bond UCITS ETF GBP (Dist) | 5.65% | 4.65% | 5.42% | 4.54% | 1.14% | 0.28% | 0.75% | 1.04% | 0.74% | 0.52% | 0.81% | 0.72% |
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% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
IBTU.L and ERNS.L have a correlation of 0.09, 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 0.09% for ERNS.L.
IBTU.L is categorized as Government Bonds, while ERNS.L is Ultrashort Bond. Their fees differ too: 0.07% for IBTU.L and 0.09% for ERNS.L.
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