PRCS vs. COMT
PRCS (Parnassus Core Select ETF) and COMT (iShares Commodities Select Strategy ETF) are both exchange-traded funds - PRCS is a Large Cap Blend Equities fund actively managed by Parnassus, while COMT is a Commodities fund actively managed by iShares. Both are actively managed. Over the past year, PRCS returned 12.71% vs 47.51% for COMT. At a correlation of -0.05, they often move in opposite directions. PRCS charges 0.58%/yr vs 0.48%/yr for COMT.
Performance
PRCS vs. COMT - Performance Comparison
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Returns By Period
In the year-to-date period, PRCS achieves a 2.88% return, which is significantly lower than COMT's 39.67% return.
PRCS
- 1D
- -0.46%
- 1M
- 1.15%
- YTD
- 2.88%
- 6M
- 2.48%
- 1Y
- 12.71%
- 3Y*
- —
- 5Y*
- —
- 10Y*
- —
COMT
- 1D
- 0.78%
- 1M
- -4.35%
- YTD
- 39.67%
- 6M
- 39.06%
- 1Y
- 47.51%
- 3Y*
- 16.86%
- 5Y*
- 13.50%
- 10Y*
- 9.09%
PRCS vs. COMT - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | |
|---|---|---|---|
PRCS Parnassus Core Select ETF | 2.88% | 11.69% | -3.56% |
COMT iShares Commodities Select Strategy ETF | 39.67% | 6.07% | 0.88% |
Correlation
The correlation between PRCS and COMT is -0.20, 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 | -0.20 |
Correlation (All Time) Calculated using the full available price history since Dec 13, 2024 | -0.05 |
The correlation between PRCS and COMT shifts across timeframes, from -0.20 (1 year) to -0.05 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
PRCS vs. COMT — Risk / Return Rank
PRCS
COMT
PRCS vs. COMT - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Parnassus Core Select ETF (PRCS) and iShares Commodities Select Strategy ETF (COMT). 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.
| PRCS | COMT | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.22 | ||
| Sortino ratioReturn per unit of downside risk | -1.41 | ||
| Omega ratioGain probability vs. loss probability | 1.18 | 1.40 | -0.22 |
| Calmar ratioReturn relative to maximum drawdown | 1.00 | 5.95 | -4.95 |
| Martin ratioReturn relative to average drawdown | 3.94 | 14.11 | -10.17 |
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
| PRCS | COMT | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.02 | 2.24 | -1.22 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | — | 0.64 | — |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | — | 0.48 | — |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.43 | 0.20 | +0.23 |
Drawdowns
PRCS vs. COMT - Drawdown Comparison
The maximum PRCS drawdown since its inception was -18.20%, smaller than the maximum COMT drawdown of -51.89%. Use the drawdown chart below to compare losses from any high point for PRCS and COMT.
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Drawdown Indicators
| PRCS | COMT | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -18.20% | -51.89% | +33.69% |
Max Drawdown (1Y)Largest decline over 1 year | -12.77% | -8.02% | -4.75% |
Max Drawdown (3Y)Largest decline over 3 years | — | -13.31% | — |
Max Drawdown (5Y)Largest decline over 5 years | — | -29.00% | — |
Max Drawdown (10Y)Largest decline over 10 years | — | -39.22% | — |
Current DrawdownCurrent decline from peak | -0.89% | -4.82% | +3.93% |
Average DrawdownAverage peak-to-trough decline | -3.00% | -24.07% | +21.07% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.23% | 3.38% | -0.15% |
Volatility
PRCS vs. COMT - Volatility Comparison
The current volatility for Parnassus Core Select ETF (PRCS) is 2.40%, while iShares Commodities Select Strategy ETF (COMT) has a volatility of 7.37%. This indicates that PRCS experiences smaller price fluctuations and is considered to be less risky than COMT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PRCS | COMT | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 2.40% | 7.37% | -4.97% |
Volatility (6M)Calculated over the trailing 6-month period | 9.78% | 18.80% | -9.02% |
Volatility (1Y)Calculated over the trailing 1-year period | 12.52% | 21.29% | -8.77% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.86% | 21.06% | -4.20% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 16.86% | 18.89% | -2.03% |
PRCS vs. COMT - Expense Ratio Comparison
PRCS has a 0.58% expense ratio, which is higher than COMT's 0.48% expense ratio.
Dividends
PRCS vs. COMT - Dividend Comparison
PRCS's dividend yield for the trailing twelve months is around 0.13%, less than COMT's 5.54% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
COMT iShares Commodities Select Strategy ETF | 5.54% | 7.74% | 4.90% | 5.19% | 29.79% | 17.79% | 0.36% | 2.61% | 11.65% | 5.16% | 0.52% | 1.44% |
PRCS Parnassus Core Select ETF | 0.13% | 0.13% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
Frequently Asked Questions
PRCS and COMT have a correlation of -0.20, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COMT has higher volatility (7.37%) compared to PRCS (2.40%). In terms of maximum drawdown, PRCS dropped -18.20% vs COMT's -51.89%.
On 1-year performance, COMT leads with 47.51% vs 12.71% for PRCS. On fees, COMT is cheaper at 0.48% per year. On volatility, PRCS has been the lower-risk option at 2.40%. The better choice depends on whether you care most about return, fees, risk, or income.
Over the 1-year period, COMT has performed better with a 47.51% return vs 12.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.
COMT is cheaper with a 0.48% expense ratio, compared with 0.58% for PRCS.
COMT has the higher dividend yield at 5.54%, compared with 0.13% for PRCS.
PRCS is categorized as Large Cap Blend Equities, while COMT is Commodities. They also come from different issuers: Parnassus and iShares. Their fees differ too: 0.58% for PRCS and 0.48% for COMT.
COMT currently has the higher Sharpe Ratio (2.24 vs 1.02), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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