PRCS vs. SUPP

Last updated Jun 4, 2026

PRCS (Parnassus Core Select ETF) and SUPP (TCW Transform Supply Chain ETF) are both Large Cap Blend Equities funds. Both are actively managed. Over the past year, PRCS returned 12.71% vs 32.28% for SUPP. A 0.79 correlation means they provide meaningful diversification when combined. PRCS charges 0.58%/yr vs 0.75%/yr for SUPP.

Performance

PRCS vs. SUPP - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Parnassus Core Select ETF (PRCS) and TCW Transform Supply Chain ETF (SUPP). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PRCS achieves a 2.88% return, which is significantly lower than SUPP's 21.37% return.

PRCS

• 1D: -0.46%
• 1M: 1.15%
• YTD: 2.88%
• 6M: 2.48%
• 1Y: 12.71%
• 3Y*: —
• 5Y*: —
• 10Y*: —

SUPP

• 1D: -0.15%
• 1M: 6.38%
• YTD: 21.37%
• 6M: 18.97%
• 1Y: 32.28%
• 3Y*: 19.34%
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

PRCS vs. SUPP - Yearly Performance Comparison

	2026 (YTD)	2025	2024
PRCS Parnassus Core Select ETF	2.88%	11.69%	-3.56%
SUPP TCW Transform Supply Chain ETF	21.37%	11.65%	-5.08%

Correlation

The correlation between PRCS and SUPP is 0.73, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.73
Correlation (All Time) Calculated using the full available price history since Dec 13, 2024	0.79

The correlation between PRCS and SUPP has been stable across timeframes, ranging from 0.73 to 0.79 - a consistent structural relationship.

Return for Risk

PRCS vs. SUPP — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

PRCS

PRCS Risk / Return Rank: 27
PRCS Sharpe Ratio Rank: 29
PRCS Sortino Ratio Rank: 28
PRCS Omega Ratio Rank: 28
PRCS Calmar Ratio Rank: 22
PRCS Martin Ratio Rank: 29

SUPP

SUPP Risk / Return Rank: 50
SUPP Sharpe Ratio Rank: 49
SUPP Sortino Ratio Rank: 49
SUPP Omega Ratio Rank: 47
SUPP Calmar Ratio Rank: 49
SUPP Martin Ratio Rank: 57

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

PRCS vs. SUPP - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Parnassus Core Select ETF (PRCS) and TCW Transform Supply Chain ETF (SUPP). 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	SUPP	Difference
Sharpe ratio: Return per unit of total volatility	1.02	1.68	-0.66
Sortino ratio: Return per unit of downside risk	1.48	2.38	-0.90
Omega ratio: Gain probability vs. loss probability	1.18	1.30	-0.12
Calmar ratio: Return relative to maximum drawdown	1.00	2.39	-1.39
Martin ratio: Return relative to average drawdown	3.94	9.82	-5.88
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PRCS vs. SUPP - Sharpe Ratio Comparison

The current PRCS Sharpe Ratio is 1.02, which is lower than the SUPP Sharpe Ratio of 1.68. The chart below compares the historical Sharpe Ratios of PRCS and SUPP, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Sharpe Ratios by Period

	PRCS	SUPP	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.02	1.68	-0.66
Sharpe Ratio (All Time) Calculated using the full available price history	0.43	0.89	-0.46

Drawdowns

PRCS vs. SUPP - Drawdown Comparison

The maximum PRCS drawdown since its inception was -18.20%, smaller than the maximum SUPP drawdown of -25.03%. Use the drawdown chart below to compare losses from any high point for PRCS and SUPP.

Drawdown Indicators

	PRCS	SUPP	Difference
Max Drawdown Largest peak-to-trough decline	-18.20%	-25.03%	+6.83%
Max Drawdown (1Y) Largest decline over 1 year	-12.77%	-13.59%	+0.82%
Max Drawdown (3Y) Largest decline over 3 years	—	-25.03%	—
Current Drawdown Current decline from peak	-0.89%	-0.15%	-0.74%
Average Drawdown Average peak-to-trough decline	-3.00%	-4.41%	+1.41%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.23%	3.29%	-0.06%

Volatility

PRCS vs. SUPP - Volatility Comparison

The current volatility for Parnassus Core Select ETF (PRCS) is 2.40%, while TCW Transform Supply Chain ETF (SUPP) has a volatility of 7.15%. This indicates that PRCS experiences smaller price fluctuations and is considered to be less risky than SUPP based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PRCS	SUPP	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.40%	7.15%	-4.75%
Volatility (6M) Calculated over the trailing 6-month period	9.78%	16.42%	-6.64%
Volatility (1Y) Calculated over the trailing 1-year period	12.52%	19.38%	-6.86%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.86%	19.44%	-2.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.86%	19.44%	-2.58%

PRCS vs. SUPP - Expense Ratio Comparison

PRCS has a 0.58% expense ratio, which is lower than SUPP's 0.75% expense ratio.

Dividends

PRCS vs. SUPP - Dividend Comparison

PRCS's dividend yield for the trailing twelve months is around 0.13%, less than SUPP's 0.29% yield.

Position	TTM	2025	2024	2023
PRCS Parnassus Core Select ETF	0.13%	0.13%	0.00%	0.00%
SUPP TCW Transform Supply Chain ETF	0.29%	0.35%	0.49%	0.45%

Frequently Asked Questions

Can I hold both PRCS and SUPP in my portfolio?

PRCS and SUPP have a correlation of 0.73, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PRCS or SUPP?

SUPP has higher volatility (7.15%) compared to PRCS (2.40%). In terms of maximum drawdown, PRCS dropped -18.20% vs SUPP's -25.03%.

Which ETF is better, PRCS or SUPP?

On 1-year performance, SUPP leads with 32.28% vs 12.71% for PRCS. On fees, PRCS is cheaper at 0.58% 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.

Which ETF has performed better, PRCS or SUPP?

Over the 1-year period, SUPP has performed better with a 32.28% return vs 12.71%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, PRCS or SUPP?

PRCS is cheaper with a 0.58% expense ratio, compared with 0.75% for SUPP.

Which ETF pays a higher dividend yield, PRCS or SUPP?

SUPP has the higher dividend yield at 0.29%, compared with 0.13% for PRCS.

What is the main difference between PRCS and SUPP?

They also come from different issuers: Parnassus and TCW. Their fees differ too: 0.58% for PRCS and 0.75% for SUPP.

Which has better risk-adjusted returns?

SUPP currently has the higher Sharpe Ratio (1.68 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.