IESU.L vs. RENG.L
IESU.L (iShares S&P 500 Energy Sector UCITS ETF USD (Acc)) and RENG.L (L&G Clean Energy UCITS ETF) are both Energy Equities funds - IESU.L tracks the S&P 500 Capped 35/20 Energy Index NTR while RENG.L tracks the S&P Global Clean Energy TR USD. Both are passively managed. Over the past 5 years, IESU.L returned 22.56%/yr vs 5.98%/yr for RENG.L. At a 0.19 correlation, their price movements are largely independent. IESU.L charges 0.15%/yr vs 0.49%/yr for RENG.L.
Performance
IESU.L vs. RENG.L - Performance Comparison
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Returns By Period
In the year-to-date period, IESU.L achieves a 27.25% return, which is significantly higher than RENG.L's 23.48% return.
IESU.L
- 1D
- 2.33%
- 1M
- 3.67%
- 6M
- 18.53%
- YTD
- 27.25%
- 1Y
- 35.48%
- 3Y*
- 13.78%
- 5Y*
- 22.56%
- 10Y*
- 8.52%
RENG.L
- 1D
- -1.56%
- 1M
- -9.61%
- 6M
- 15.40%
- YTD
- 23.48%
- 1Y
- 47.24%
- 3Y*
- 12.97%
- 5Y*
- 5.98%
- 10Y*
- —
IESU.L vs. RENG.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | |
|---|---|---|---|---|---|---|---|
IESU.L iShares S&P 500 Energy Sector UCITS ETF USD (Acc) | 27.25% | 2.26% | 5.45% | -5.96% | 83.53% | 53.82% | -3.36% |
RENG.L L&G Clean Energy UCITS ETF | 23.48% | 40.21% | -12.86% | -13.13% | 2.03% | -6.20% | 9.04% |
Correlation
The correlation between IESU.L and RENG.L is -0.16, meaning they tend to move in opposite directions. This is especially valuable for risk management - when one declines, the other has historically tended to hold steady or rise.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.16 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.20 |
Correlation (All Time) Calculated using the full available price history since Nov 27, 2020 | 0.19 |
The correlation between IESU.L and RENG.L shifts across timeframes, from -0.16 (1 year) to 0.20 (5 years), reflecting how their relationship changes across market environments.
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Return for Risk
IESU.L vs. RENG.L — Risk / Return Rank
IESU.L
RENG.L
IESU.L vs. RENG.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for iShares S&P 500 Energy Sector UCITS ETF USD (Acc) (IESU.L) and L&G Clean Energy UCITS ETF (RENG.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.
| IESU.L | RENG.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.49 | ||
| Sortino ratioReturn per unit of downside risk | -0.62 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.32 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 2.04 | 2.93 | -0.89 |
| Martin ratioReturn relative to average drawdown | 4.96 | 10.78 | -5.82 |
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Drawdowns
IESU.L vs. RENG.L - Drawdown Comparison
The maximum IESU.L drawdown since its inception was -63.88%, which is greater than RENG.L's maximum drawdown of -45.48%. Use the drawdown chart below to compare losses from any high point for IESU.L and RENG.L.
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Drawdown Indicators
| IESU.L | RENG.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -63.88% | -45.48% | -18.40% |
Max Drawdown (1Y)Largest decline over 1 year | -17.34% | -16.05% | -1.29% |
Max Drawdown (3Y)Largest decline over 3 years | -26.36% | -31.61% | +5.25% |
Max Drawdown (5Y)Largest decline over 5 years | -26.36% | -40.27% | +13.91% |
Max Drawdown (10Y)Largest decline over 10 years | -62.16% | — | — |
Current DrawdownCurrent decline from peak | -11.59% | -16.05% | +4.46% |
Average DrawdownAverage peak-to-trough decline | -20.51% | -20.57% | +0.06% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.13% | 4.37% | +2.76% |
Volatility
IESU.L vs. RENG.L - Volatility Comparison
The current volatility for iShares S&P 500 Energy Sector UCITS ETF USD (Acc) (IESU.L) is 7.73%, while L&G Clean Energy UCITS ETF (RENG.L) has a volatility of 8.77%. This indicates that IESU.L experiences smaller price fluctuations and is considered to be less risky than RENG.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| IESU.L | RENG.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.73% | 8.77% | -1.04% |
Volatility (6M)Calculated over the trailing 6-month period | 21.73% | 19.08% | +2.65% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.62% | 24.39% | +0.23% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 29.09% | 22.22% | +6.87% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 29.16% | 22.64% | +6.52% |
IESU.L vs. RENG.L - Expense Ratio Comparison
IESU.L has a 0.15% expense ratio, which is lower than RENG.L's 0.49% expense ratio.
Dividends
IESU.L vs. RENG.L - Dividend Comparison
Neither IESU.L nor RENG.L has paid dividends to shareholders.
Frequently Asked Questions
IESU.L and RENG.L have a correlation of -0.16, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, IESU.L is cheaper at 0.15% per year. The better choice depends on whether you care most about return, fees, risk, or income.
IESU.L is cheaper with a 0.15% expense ratio, compared with 0.49% for RENG.L.
IESU.L tracks S&P 500 Capped 35/20 Energy Index NTR, while RENG.L tracks S&P Global Clean Energy TR USD. They also come from different issuers: iShares and Legal & General. Their fees differ too: 0.15% for IESU.L and 0.49% for RENG.L.
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