CPHYX vs. RPHIX

Last updated Jun 4, 2026

CPHYX (Principal High Yield Fund) and RPHIX (RiverPark Short Term High Yield Fund) are both High Yield Bonds funds. Over the past 10 years, CPHYX returned 5.10%/yr vs 3.54%/yr for RPHIX. At a 0.27 correlation, their price movements are largely independent. CPHYX charges 0.91%/yr vs 0.89%/yr for RPHIX.

Performance

CPHYX vs. RPHIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal High Yield Fund (CPHYX) 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, CPHYX achieves a 1.55% return, which is significantly lower than RPHIX's 1.76% return. Over the past 10 years, CPHYX has outperformed RPHIX with an annualized return of 5.10%, while RPHIX has yielded a comparatively lower 3.54% annualized return.

CPHYX

• 1D: 0.00%
• 1M: 0.57%
• YTD: 1.55%
• 6M: 2.12%
• 1Y: 5.94%
• 3Y*: 7.37%
• 5Y*: 3.72%
• 10Y*: 5.10%

RPHIX

• 1D: 0.00%
• 1M: 0.42%
• YTD: 1.76%
• 6M: 2.31%
• 1Y: 4.39%
• 3Y*: 5.65%
• 5Y*: 4.63%
• 10Y*: 3.54%

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

CPHYX vs. RPHIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
CPHYX Principal High Yield Fund	1.55%	6.68%	7.09%	11.27%	-9.32%	5.41%	6.11%	13.24%	-4.76%	7.78%
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 CPHYX and RPHIX is 0.22, which is low. Their price movements are largely independent, making them effective diversification partners.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.22
Correlation (3Y) Calculated over the trailing 3-year period	0.18
Correlation (5Y) Calculated over the trailing 5-year period	0.25
Correlation (10Y) Calculated over the trailing 10-year period	0.24
Correlation (All Time) Calculated using the full available price history since Jan 4, 2011	0.27

Return for Risk

CPHYX vs. RPHIX — Risk / Return Rank

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

CPHYX

CPHYX Risk / Return Rank: 55
CPHYX Sharpe Ratio Rank: 43
CPHYX Sortino Ratio Rank: 62
CPHYX Omega Ratio Rank: 71
CPHYX Calmar Ratio Rank: 39
CPHYX Martin Ratio Rank: 60

RPHIX

RPHIX Risk / Return Rank: 100
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.

CPHYX vs. RPHIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal High Yield Fund (CPHYX) 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.

	CPHYX	RPHIX	Difference
Sharpe ratio: Return per unit of total volatility	1.92	5.17	-3.25
Sortino ratio: Return per unit of downside risk	3.31	10.99	-7.68
Omega ratio: Gain probability vs. loss probability	1.47	3.74	-2.27
Calmar ratio: Return relative to maximum drawdown	2.34	43.68	-41.34
Martin ratio: Return relative to average drawdown	11.85	122.56	-110.71
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

CPHYX vs. RPHIX - Sharpe Ratio Comparison

The current CPHYX Sharpe Ratio is 1.92, which is lower than the RPHIX Sharpe Ratio of 5.17. The chart below compares the historical Sharpe Ratios of CPHYX 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.

Sharpe Ratios by Period

	CPHYX	RPHIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.92	5.17	-3.25
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.78	3.68	-2.89
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.95	2.96	-2.01
Sharpe Ratio (All Time) Calculated using the full available price history	1.13	2.96	-1.82

Drawdowns

CPHYX vs. RPHIX - Drawdown Comparison

The maximum CPHYX drawdown since its inception was -27.79%, which is greater than RPHIX's maximum drawdown of -3.16%. Use the drawdown chart below to compare losses from any high point for CPHYX and RPHIX.

Drawdown Indicators

	CPHYX	RPHIX	Difference
Max Drawdown Largest peak-to-trough decline	-27.79%	-3.16%	-24.63%
Max Drawdown (1Y) Largest decline over 1 year	-2.61%	-0.10%	-2.51%
Max Drawdown (3Y) Largest decline over 3 years	-4.48%	-0.72%	-3.76%
Max Drawdown (5Y) Largest decline over 5 years	-14.33%	-0.92%	-13.41%
Max Drawdown (10Y) Largest decline over 10 years	-20.68%	-3.16%	-17.52%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-2.62%	-0.09%	-2.53%
Ulcer Index Depth and duration of drawdowns from previous peaks	0.52%	0.04%	+0.48%

Volatility

CPHYX vs. RPHIX - Volatility Comparison

Principal High Yield Fund (CPHYX) has a higher volatility of 0.88% compared to RiverPark Short Term High Yield Fund (RPHIX) at 0.24%. This indicates that CPHYX'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

	CPHYX	RPHIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	0.88%	0.24%	+0.64%
Volatility (6M) Calculated over the trailing 6-month period	2.50%	0.59%	+1.91%
Volatility (1Y) Calculated over the trailing 1-year period	3.19%	0.88%	+2.31%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	4.77%	1.26%	+3.51%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	5.37%	1.20%	+4.17%

CPHYX vs. RPHIX - Expense Ratio Comparison

CPHYX has a 0.91% expense ratio, which is higher than RPHIX's 0.89% expense ratio.

Dividends

CPHYX vs. RPHIX - Dividend Comparison

CPHYX's dividend yield for the trailing twelve months is around 6.56%, more than RPHIX's 4.08% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
CPHYX Principal High Yield Fund	6.56%	6.46%	6.23%	4.70%	4.56%	4.72%	4.82%	5.50%	6.18%	4.90%	5.62%	6.24%
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 CPHYX and RPHIX in my portfolio?

CPHYX and RPHIX have a correlation of 0.22, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, CPHYX or RPHIX?

CPHYX has higher volatility (0.88%) compared to RPHIX (0.24%). In terms of maximum drawdown, CPHYX dropped -27.79% vs RPHIX's -3.16%.

Which has better risk-adjusted returns?

RPHIX currently has the higher Sharpe Ratio (5.17 vs 1.92), 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.