COMF.L vs. ROLG.L
COMF.L (L&G Longer Dated All Commodities UCITS ETF) and ROLG.L (iShares Bloomberg Roll Select Commodity Swap UCITS ETF USD) are both Commodities funds - COMF.L tracks the Bloomberg Commodity Index 3 Month Forward Total Return while ROLG.L tracks the Bloomberg Roll Select Commodity. Both are passively managed. Over the past 5 years, COMF.L returned 11.24%/yr vs 12.71%/yr for ROLG.L. Their correlation of 0.84 suggests significant overlap in exposure. COMF.L charges 0.30%/yr vs 0.28%/yr for ROLG.L.
Performance
COMF.L vs. ROLG.L - Performance Comparison
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Different Trading Currencies
COMF.L is traded in USD, while ROLG.L is traded in GBP. To make them comparable, the ROLG.L values have been converted to USD using the latest available exchange rates.
Returns By Period
In the year-to-date period, COMF.L achieves a 15.62% return, which is significantly lower than ROLG.L's 24.46% return.
COMF.L
- 1D
- 0.49%
- 1M
- 1.36%
- 6M
- 12.32%
- YTD
- 15.62%
- 1Y
- 24.40%
- 3Y*
- 11.31%
- 5Y*
- 11.24%
- 10Y*
- 8.22%
ROLG.L
- 1D
- 0.54%
- 1M
- 3.41%
- 6M
- 18.88%
- YTD
- 24.46%
- 1Y
- 34.74%
- 3Y*
- 14.55%
- 5Y*
- 12.71%
- 10Y*
- —
COMF.L vs. ROLG.L - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | |
|---|---|---|---|---|---|---|---|---|---|
COMF.L L&G Longer Dated All Commodities UCITS ETF | 15.62% | 16.43% | 5.13% | -6.37% | 18.73% | 32.96% | 2.52% | 7.36% | -9.61% |
ROLG.L iShares Bloomberg Roll Select Commodity Swap UCITS ETF USD | 24.46% | 16.86% | 4.55% | -2.47% | 16.56% | 28.06% | 0.58% | 5.92% | -31.55% |
Correlation
The correlation between COMF.L and ROLG.L is 0.89, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.89 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.85 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.85 |
Correlation (All Time) Calculated using the full available price history since Oct 3, 2018 | 0.84 |
The correlation between COMF.L and ROLG.L has been stable across timeframes, ranging from 0.84 to 0.89 - a consistent structural relationship.
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Return for Risk
COMF.L vs. ROLG.L — Risk / Return Rank
COMF.L
ROLG.L
COMF.L vs. ROLG.L - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for L&G Longer Dated All Commodities UCITS ETF (COMF.L) and iShares Bloomberg Roll Select Commodity Swap UCITS ETF USD (ROLG.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.
| COMF.L | ROLG.L | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.35 | ||
| Sortino ratioReturn per unit of downside risk | -0.45 | ||
| Omega ratioGain probability vs. loss probability | 1.31 | 1.36 | -0.04 |
| Calmar ratioReturn relative to maximum drawdown | 1.98 | 2.50 | -0.52 |
| Martin ratioReturn relative to average drawdown | 6.41 | 8.50 | -2.09 |
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Drawdowns
COMF.L vs. ROLG.L - Drawdown Comparison
The maximum COMF.L drawdown since its inception was -60.21%, which is greater than ROLG.L's maximum drawdown of -47.02%. Use the drawdown chart below to compare losses from any high point for COMF.L and ROLG.L.
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Drawdown Indicators
| COMF.L | ROLG.L | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -60.21% | -47.02% | -13.19% |
Max Drawdown (1Y)Largest decline over 1 year | -12.25% | -13.82% | +1.57% |
Max Drawdown (3Y)Largest decline over 3 years | -12.25% | -22.26% | +10.01% |
Max Drawdown (5Y)Largest decline over 5 years | -22.56% | -22.26% | -0.30% |
Max Drawdown (10Y)Largest decline over 10 years | -29.69% | — | — |
Current DrawdownCurrent decline from peak | -7.12% | -7.08% | -0.04% |
Average DrawdownAverage peak-to-trough decline | -29.35% | -17.68% | -11.67% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.78% | 4.08% | -0.30% |
Volatility
COMF.L vs. ROLG.L - Volatility Comparison
The current volatility for L&G Longer Dated All Commodities UCITS ETF (COMF.L) is 3.57%, while iShares Bloomberg Roll Select Commodity Swap UCITS ETF USD (ROLG.L) has a volatility of 4.38%. This indicates that COMF.L experiences smaller price fluctuations and is considered to be less risky than ROLG.L based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| COMF.L | ROLG.L | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 3.57% | 4.38% | -0.81% |
Volatility (6M)Calculated over the trailing 6-month period | 11.58% | 14.31% | -2.73% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.87% | 16.44% | -2.57% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 14.92% | 22.43% | -7.51% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 13.28% | 22.14% | -8.86% |
COMF.L vs. ROLG.L - Expense Ratio Comparison
COMF.L has a 0.30% expense ratio, which is higher than ROLG.L's 0.28% expense ratio.
Dividends
COMF.L vs. ROLG.L - Dividend Comparison
Neither COMF.L nor ROLG.L has paid dividends to shareholders.
Frequently Asked Questions
COMF.L and ROLG.L have a correlation of 0.89, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
On fees, ROLG.L is cheaper at 0.28% per year. The better choice depends on whether you care most about return, fees, risk, or income.
ROLG.L is cheaper with a 0.28% expense ratio, compared with 0.30% for COMF.L.
COMF.L tracks Bloomberg Commodity Index 3 Month Forward Total Return, while ROLG.L tracks Bloomberg Roll Select Commodity. They also come from different issuers: L&G and iShares. Their fees differ too: 0.30% for COMF.L and 0.28% for ROLG.L.
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