ERNA.L vs. SDIA.L
ERNA.L (iShares USD Ultrashort Bond UCITS ETF USD (Acc)) and SDIA.L (iShares USD Short Duration Corporate Bond UCITS ETF (Acc)) are both Corporate Bonds funds from iShares tracking the Bloomberg US Corp 1-3 Yr TR USD. Both are passively managed. Over the past 5 years, ERNA.L returned 3.77%/yr vs 2.40%/yr for SDIA.L. At a 0.20 correlation, their price movements are largely independent. ERNA.L charges 0.09%/yr vs 0.20%/yr for SDIA.L.
Performance
ERNA.L vs. SDIA.L - Performance Comparison
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Returns By Period
In the year-to-date period, ERNA.L achieves a 1.64% return, which is significantly higher than SDIA.L's 0.79% return.
ERNA.L
- 1D
- 0.11%
- 1M
- 0.35%
- YTD
- 1.64%
- 6M
- 1.95%
- 1Y
- 4.36%
- 3Y*
- 5.21%
- 5Y*
- 3.77%
- 10Y*
- —
SDIA.L
- 1D
- 0.11%
- 1M
- 0.39%
- YTD
- 0.79%
- 6M
- 1.24%
- 1Y
- 4.27%
- 3Y*
- 5.27%
- 5Y*
- 2.40%
- 10Y*
- —
ERNA.L vs. SDIA.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
ERNA.L iShares USD Ultrashort Bond UCITS ETF USD (Acc) | 1.64% | 4.75% | 5.66% | 5.50% | 1.46% | 0.11% | 1.27% | 3.19% | 1.09% |
SDIA.L iShares USD Short Duration Corporate Bond UCITS ETF (Acc) | 0.79% | 6.17% | 4.99% | 5.64% | -4.49% | -0.70% | 4.50% | 6.12% | 1.29% |
Correlation
The correlation between ERNA.L and SDIA.L is 0.19, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.19 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.24 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.24 |
Correlation (All Time) Calculated using the full available price history since Jul 4, 2018 | 0.20 |
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Return for Risk
ERNA.L vs. SDIA.L — Risk / Return Rank
ERNA.L
SDIA.L
ERNA.L vs. SDIA.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares USD Ultrashort Bond UCITS ETF USD (Acc) (ERNA.L) and iShares USD Short Duration Corporate Bond UCITS ETF (Acc) (SDIA.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.
| ERNA.L | SDIA.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +2.33 | ||
| Sortino ratioReturn per unit of downside risk | +4.78 | ||
| Omega ratioGain probability vs. loss probability | 2.31 | 1.45 | +0.86 |
| Calmar ratioReturn relative to maximum drawdown | 21.10 | 4.17 | +16.93 |
| Martin ratioReturn relative to average drawdown | 82.85 | 16.33 | +66.52 |
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
| ERNA.L | SDIA.L | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 4.65 | 2.32 | +2.33 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 4.03 | 0.92 | +3.11 |
Sharpe Ratio (All Time)Calculated using the full available price history | 1.43 | 0.79 | +0.64 |
Drawdowns
ERNA.L vs. SDIA.L - Drawdown Comparison
The maximum ERNA.L drawdown since its inception was -8.63%, smaller than the maximum SDIA.L drawdown of -12.55%. Use the drawdown chart below to compare losses from any high point for ERNA.L and SDIA.L.
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Drawdown Indicators
| ERNA.L | SDIA.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -8.63% | -12.55% | +3.92% |
Max Drawdown (1Y)Largest decline over 1 year | -0.20% | -1.02% | +0.82% |
Max Drawdown (3Y)Largest decline over 3 years | -0.38% | -1.32% | +0.94% |
Max Drawdown (5Y)Largest decline over 5 years | -0.81% | -7.61% | +6.80% |
Current DrawdownCurrent decline from peak | 0.00% | -0.03% | +0.03% |
Average DrawdownAverage peak-to-trough decline | -0.10% | -1.17% | +1.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.05% | 0.26% | -0.21% |
Volatility
ERNA.L vs. SDIA.L - Volatility Comparison
The current volatility for iShares USD Ultrashort Bond UCITS ETF USD (Acc) (ERNA.L) is 0.30%, while iShares USD Short Duration Corporate Bond UCITS ETF (Acc) (SDIA.L) has a volatility of 0.83%. This indicates that ERNA.L experiences smaller price fluctuations and is considered to be less risky than SDIA.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ERNA.L | SDIA.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.30% | 0.83% | -0.53% |
Volatility (6M)Calculated over the trailing 6-month period | 0.86% | 1.51% | -0.65% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.93% | 1.84% | -0.91% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.93% | 2.62% | -1.69% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 2.17% | 3.44% | -1.27% |
ERNA.L vs. SDIA.L - Expense Ratio Comparison
ERNA.L has a 0.09% expense ratio, which is lower than SDIA.L's 0.20% 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
ERNA.L vs. SDIA.L - Dividend Comparison
Neither ERNA.L nor SDIA.L has paid dividends to shareholders.
Frequently Asked Questions
ERNA.L and SDIA.L have a correlation of 0.19, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, ERNA.L is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.
ERNA.L is cheaper with a 0.09% expense ratio, compared with 0.20% for SDIA.L.
Both ETFs track Bloomberg US Corp 1-3 Yr TR USD. Their fees differ too: 0.09% for ERNA.L and 0.20% for SDIA.L.
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