CPMPX vs. RPHIX

Last updated Jun 23, 2026

CPMPX (Changing Parameters Fund) and RPHIX (RiverPark Short Term High Yield Fund) are both High Yield Bonds funds. Over the past 10 years, CPMPX returned 4.16%/yr vs 3.51%/yr for RPHIX. At a 0.13 correlation, their price movements are largely independent. CPMPX charges 2.90%/yr vs 0.89%/yr for RPHIX.

Performance

CPMPX vs. RPHIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Changing Parameters Fund (CPMPX) and RiverPark Short Term High Yield Fund (RPHIX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, CPMPX achieves a 0.95% return, which is significantly lower than RPHIX's 1.76% return. Over the past 10 years, CPMPX has outperformed RPHIX with an annualized return of 4.16%, while RPHIX has yielded a comparatively lower 3.51% annualized return.

CPMPX

• 1D: 0.09%
• 1M: 0.38%
• YTD: 0.95%
• 6M: 1.08%
• 1Y: 5.31%
• 3Y*: 3.33%
• 5Y*: 2.39%
• 10Y*: 4.16%

RPHIX

• 1D: 0.00%
• 1M: 0.22%
• YTD: 1.76%
• 6M: 1.89%
• 1Y: 4.39%
• 3Y*: 5.57%
• 5Y*: 4.61%
• 10Y*: 3.51%

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

CPMPX vs. RPHIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CPMPX Changing Parameters Fund	0.95%	6.65%	-3.47%	8.13%	-0.22%	3.86%	13.43%	6.82%	-1.19%	5.29%
RPHIX RiverPark Short Term High Yield Fund	1.76%	4.76%	6.71%	5.87%	2.97%	2.05%	1.95%	2.77%	2.44%	2.50%

Correlation

The correlation between CPMPX and RPHIX is 0.16, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.16
Correlation (3Y) Calculated over the trailing 3-year period	0.11
Correlation (5Y) Calculated over the trailing 5-year period	0.14
Correlation (10Y) Calculated over the trailing 10-year period	0.13
Correlation (All Time) Calculated using the full available price history since Jan 3, 2011	0.13

Return for Risk

CPMPX vs. RPHIX — Risk / Return Rank

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

CPMPX

CPMPX Risk / Return Rank: 85
CPMPX Sharpe Ratio Rank: 92
CPMPX Sortino Ratio Rank: 92
CPMPX Omega Ratio Rank: 93
CPMPX Calmar Ratio Rank: 88
CPMPX Martin Ratio Rank: 61

RPHIX

RPHIX Risk / Return Rank: 99
RPHIX Sharpe Ratio Rank: 99
RPHIX Sortino Ratio Rank: 99
RPHIX Omega Ratio Rank: 99
RPHIX Calmar Ratio Rank: 100
RPHIX Martin Ratio Rank: 100

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.

CPMPX vs. RPHIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Changing Parameters Fund (CPMPX) and RiverPark Short Term High Yield Fund (RPHIX). 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.

	CPMPX	RPHIX	Difference
Sharpe ratio: Return per unit of total volatility	2.88	4.90	-2.02
Sortino ratio: Return per unit of downside risk	4.33	10.15	-5.82
Omega ratio: Gain probability vs. loss probability	1.68	3.46	-1.78
Calmar ratio: Return relative to maximum drawdown	4.09	41.59	-37.51
Martin ratio: Return relative to average drawdown	11.36	105.77	-94.41

CPMPX vs. RPHIX - Sharpe Ratio Comparison

The current CPMPX Sharpe Ratio is 2.88, which is lower than the RPHIX Sharpe Ratio of 4.90. The chart below compares the historical Sharpe Ratios of CPMPX and RPHIX, calculated using daily returns over the previous 12 months. A higher Sharpe Ratio indicates better risk-adjusted performance relative to the risk-free rate.

Drawdowns

CPMPX vs. RPHIX - Drawdown Comparison

The maximum CPMPX drawdown since its inception was -8.87%, which is greater than RPHIX's maximum drawdown of -3.16%. Use the drawdown chart below to compare losses from any high point for CPMPX and RPHIX.

Drawdown Indicators

	CPMPX	RPHIX	Difference
Max Drawdown Largest peak-to-trough decline	-8.87%	-3.16%	-5.71%
Max Drawdown (1Y) Largest decline over 1 year	-1.31%	-0.10%	-1.21%
Max Drawdown (3Y) Largest decline over 3 years	-8.13%	-0.72%	-7.41%
Max Drawdown (5Y) Largest decline over 5 years	-8.13%	-0.92%	-7.21%
Max Drawdown (10Y) Largest decline over 10 years	-8.13%	-3.16%	-4.97%
Current Drawdown Current decline from peak	-1.00%	0.00%	-1.00%
Average Drawdown Average peak-to-trough decline	-1.86%	-0.09%	-1.77%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.47%	0.04%	+0.43%

Volatility

CPMPX vs. RPHIX - Volatility Comparison

Changing Parameters Fund (CPMPX) has a higher volatility of 0.63% compared to RiverPark Short Term High Yield Fund (RPHIX) at 0.21%. This indicates that CPMPX's price experiences larger fluctuations and is considered to be riskier than RPHIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	CPMPX	RPHIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.63%	0.21%	+0.42%
Volatility (6M) Calculated over the trailing 6-month period	1.36%	0.59%	+0.77%
Volatility (1Y) Calculated over the trailing 1-year period	1.86%	0.88%	+0.98%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	3.84%	1.26%	+2.58%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	3.12%	1.20%	+1.92%

CPMPX vs. RPHIX - Expense Ratio Comparison

CPMPX has a 2.90% expense ratio, which is higher than RPHIX's 0.89% expense ratio.

Dividends

CPMPX vs. RPHIX - Dividend Comparison

CPMPX's dividend yield for the trailing twelve months is around 3.79%, less than RPHIX's 4.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPMPX Changing Parameters Fund	3.79%	3.83%	0.00%	4.26%	5.03%	4.24%	6.94%	2.85%	1.71%	3.32%	2.25%	1.51%
RPHIX RiverPark Short Term High Yield Fund	4.08%	4.76%	6.40%	5.08%	3.46%	2.03%	2.44%	2.85%	2.83%	2.68%	2.63%	3.19%

Frequently Asked Questions

Can I hold both CPMPX and RPHIX in my portfolio?

CPMPX and RPHIX 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.

Which is riskier, CPMPX or RPHIX?

CPMPX has higher volatility (0.63%) compared to RPHIX (0.21%). In terms of maximum drawdown, CPMPX dropped -8.87% vs RPHIX's -3.16%.

Which has better risk-adjusted returns?

RPHIX currently has the higher Sharpe Ratio (4.90 vs 2.88), 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.