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iShares USD Ultrashort Bond UCITS ETF USD (Acc) (ERNA.L) Sharpe Ratio: 3.09

ETF · Currency in USD · Last updated Jul 16, 2026

ERNA.L is a passive ETF by iShares tracking the investment results of the Bloomberg US Corp 1-3 Yr TR USD. ERNA.L launched on Jun 29, 2018 and has a 0.09% expense ratio.

ERNA.L's Sharpe Ratio of 3.09 indicates that for each unit of volatility, it generates 3.09 units of excess return above the risk-free rate. The ratio is calculated using historical daily returns over the past 12 months (as of Jul 16, 2026).

Sharpe uses total volatility (standard deviation) which includes both upside and downside price movements, making it useful for comparing risk-adjusted returns across different assets. For how to read this number and when it can mislead, see Sharpe Ratio Explained.

ERNA.L Sharpe Ratio Rank

ERNA.L Sharpe Ratio Rank: 95.495
Exceptional

ERNA.L ranks above 95.4% of all investments in our database based on Sharpe Ratio over the past 12 months, demonstrating exceptional risk-adjusted returns. Securities are ranked from 0 (worst) to 100 (best).

What moves the rank

  • Strong returns with low total volatility → Higher rank
  • High volatility (both upside and downside) → Lower rank
  • Consistent returns → Higher rank than volatile returns of same magnitude
  • Sharp drawdowns increase volatility → Lower rank

What you can do with this information

  • Suitable as a core holding given strong risk-adjusted returns
  • Monitor rank changes to detect deteriorating return-to-volatility profile
  • Exceptional Sharpe ratio supports larger position sizes
  • Compare with category peers to assess whether strength is investment-specific or category-wide

ERNA.L Sharpe Ratio Market Positioning

The chart shows ERNA.L's Sharpe Ratio relative to all ETFs on our platform, with color zones indicating percentile rankings. Higher ratios indicate better risk-adjusted returns.

  • Red zone (bottom 25%): 0.74 or lower
  • Yellow zone (middle 50%): 0.74 to 1.91
  • Green zone (top 25%): 1.91 or higher
  • Top 1%: 6.53+
  • Median: 1.42 — half of all investments score higher

How it compares to other similar ETFs

The table compares iShares USD Ultrashort Bond UCITS ETF USD (Acc)'s Sharpe Ratio with other ETFs in the Corporate Bonds category across multiple time periods, showing how ERNA.L's risk-adjusted performance compares to similar funds.

Data shows 1-, 5-, and 10-year periods, plus each fund's all-time average, as of Jul 16, 2026.

SymbolName1Y Sharpe Ratio5Y Sharpe Ratio10Y Sharpe RatioAll Time Sharpe Ratio
ERND.LiShares $ Ultrashort Bond UCITS ETF USD (Dist)5.19
ERNE.LiShares € Ultrashort Bond UCITS ETF EUR (Dist)3.77
ERNA.LiShares USD Ultrashort Bond UCITS ETF USD (Acc)3.09
FLOA.LiShares USD Floating Rate Bond UCITS ETF USD (Acc)2.90
SUSU.LiShares USD Corporate Bond 0-3yr ESG UCITS ETF USD (Dist)2.15
XYLD.LXtrackers USD Corporate Bond Short Duration SRI PAB UCITS ETF 1D1.98
SDIA.LiShares USD Short Duration Corporate Bond UCITS ETF (Acc)1.83
EMAU.LL&G Emerging Markets Corporate Bond (USD) Screened UCITS ETF USD (Acc)1.64
EMCA.LiShares J.P. Morgan $ EM Corp Bond UCITS ETF USD (Acc)1.52
EMCR.LiShares J.P. Morgan $ EM Corp Bond UCITS ETF USD (Dist)1.51

S&P 500 Index

How to choose period

Historical Sharpe Ratio

The chart shows ERNA.L's rolling Sharpe ratio over time compared to your chosen benchmark. Rising trends indicate improving returns relative to total volatility, while declining trends may signal deteriorating risk-adjusted performance or increased volatility. Use multiple timeframes to distinguish short-term fluctuations from long-term patterns.

Identify market cycles by observing when ERNA.L consistently outperforms (line above benchmark), underperforms (below benchmark), or aligns with the benchmark.

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Sharpe Ratio Calculator

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