ERNS.L vs. FLOS.L
ERNS.L (iShares £ Ultrashort Bond UCITS ETF GBP (Dist)) and FLOS.L (iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist)) are both Ultrashort Bond funds from iShares - ERNS.L tracks the Markit iBoxx GBP Liquid Investment Grade Ultrashort Index while FLOS.L tracks the iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist). Both are passively managed. Over the past 5 years, ERNS.L returned 3.71%/yr vs 4.01%/yr for FLOS.L. At a 0.10 correlation, their price movements are largely independent. ERNS.L charges 0.09%/yr vs 0.12%/yr for FLOS.L.
Performance
ERNS.L vs. FLOS.L - Performance Comparison
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Different Trading Currencies
ERNS.L is traded in GBP, while FLOS.L is traded in GBp. To make them comparable, the FLOS.L values have been converted to GBP using the latest available exchange rates.
Returns By Period
In the year-to-date period, ERNS.L achieves a 1.98% return, which is significantly lower than FLOS.L's 2.36% return.
ERNS.L
- 1D
- 0.04%
- 1M
- 0.27%
- 6M
- 1.99%
- YTD
- 1.98%
- 1Y
- 4.24%
- 3Y*
- 5.01%
- 5Y*
- 3.71%
- 10Y*
- 2.22%
FLOS.L
- 1D
- 0.04%
- 1M
- 0.31%
- 6M
- 2.21%
- YTD
- 2.36%
- 1Y
- 4.64%
- 3Y*
- 5.41%
- 5Y*
- 4.01%
- 10Y*
- —
ERNS.L vs. FLOS.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
ERNS.L iShares £ Ultrashort Bond UCITS ETF GBP (Dist) | 1.98% | 4.84% | 5.55% | 4.76% | 1.53% | 0.14% | 0.77% | 1.28% | 0.58% | 0.15% |
FLOS.L iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist) | 2.36% | 4.78% | 6.24% | 6.00% | 0.83% | 0.10% | 0.18% | 2.42% | -0.45% | 0.28% |
Correlation
The correlation between ERNS.L and FLOS.L is 0.05, 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 | 0.05 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.07 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.10 |
Correlation (All Time) Calculated using the full available price history since Aug 31, 2017 | 0.10 |
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Return for Risk
ERNS.L vs. FLOS.L — Risk / Return Rank
ERNS.L
FLOS.L
ERNS.L vs. FLOS.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares £ Ultrashort Bond UCITS ETF GBP (Dist) (ERNS.L) and iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist) (FLOS.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.
| ERNS.L | FLOS.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.10 | ||
| Sortino ratioReturn per unit of downside risk | +2.31 | ||
| Omega ratioGain probability vs. loss probability | 2.40 | 2.00 | +0.40 |
| Calmar ratioReturn relative to maximum drawdown | 19.43 | 15.76 | +3.66 |
| Martin ratioReturn relative to average drawdown | 108.42 | 79.94 | +28.48 |
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Drawdowns
ERNS.L vs. FLOS.L - Drawdown Comparison
The maximum ERNS.L drawdown since its inception was -1.51%, smaller than the maximum FLOS.L drawdown of -14.78%. Use the drawdown chart below to compare losses from any high point for ERNS.L and FLOS.L.
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Drawdown Indicators
| ERNS.L | FLOS.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -1.51% | -14.78% | +13.27% |
Max Drawdown (1Y)Largest decline over 1 year | -0.22% | -0.29% | +0.07% |
Max Drawdown (3Y)Largest decline over 3 years | -0.22% | -1.46% | +1.24% |
Max Drawdown (5Y)Largest decline over 5 years | -0.36% | -2.13% | +1.77% |
Max Drawdown (10Y)Largest decline over 10 years | -1.51% | — | — |
Current DrawdownCurrent decline from peak | -0.03% | -0.09% | +0.06% |
Average DrawdownAverage peak-to-trough decline | -0.05% | -0.25% | +0.20% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 0.04% | 0.06% | -0.02% |
Volatility
ERNS.L vs. FLOS.L - Volatility Comparison
The current volatility for iShares £ Ultrashort Bond UCITS ETF GBP (Dist) (ERNS.L) is 0.19%, while iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist) (FLOS.L) has a volatility of 0.22%. This indicates that ERNS.L experiences smaller price fluctuations and is considered to be less risky than FLOS.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| ERNS.L | FLOS.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 0.19% | 0.22% | -0.03% |
Volatility (6M)Calculated over the trailing 6-month period | 0.65% | 0.80% | -0.15% |
Volatility (1Y)Calculated over the trailing 1-year period | 0.79% | 1.07% | -0.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 0.82% | 1.68% | -0.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 0.92% | 3.36% | -2.44% |
ERNS.L vs. FLOS.L - Expense Ratio Comparison
ERNS.L has a 0.09% expense ratio, which is lower than FLOS.L's 0.12% 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
ERNS.L vs. FLOS.L - Dividend Comparison
ERNS.L's dividend yield for the trailing twelve months is around 4.28%, less than FLOS.L's 4.68% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
ERNS.L iShares £ Ultrashort Bond UCITS ETF GBP (Dist) | 4.28% | 4.65% | 5.42% | 4.54% | 1.14% | 0.28% | 0.75% | 1.04% | 0.74% | 0.52% | 0.81% | 0.72% |
FLOS.L iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist) | 4.68% | 5.02% | 5.93% | 5.46% | 1.50% | 0.57% | 1.62% | 2.95% | 2.27% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
ERNS.L and FLOS.L have a correlation of 0.05, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, ERNS.L is cheaper at 0.09% per year. The better choice depends on whether you care most about return, fees, risk, or income.
ERNS.L is cheaper with a 0.09% expense ratio, compared with 0.12% for FLOS.L.
ERNS.L tracks Markit iBoxx GBP Liquid Investment Grade Ultrashort Index, while FLOS.L tracks iShares $ Floating Rate Bond UCITS ETF GBP Hedged (Dist). Their fees differ too: 0.09% for ERNS.L and 0.12% for FLOS.L.
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