PINRX vs. OPOCX

Last updated Jun 4, 2026

PINRX (Principal Diversified International Fund) and OPOCX (Invesco Discovery Fund) are both mutual funds - PINRX is a Foreign Large Cap Equities fund managed by Principal, while OPOCX is a Small Cap Growth Equities fund managed by Invesco. Over the past 10 years, PINRX returned 8.63%/yr vs 16.53%/yr for OPOCX. A 0.67 correlation means they provide meaningful diversification when combined. PINRX charges 1.32%/yr vs 1.01%/yr for OPOCX.

Performance

PINRX vs. OPOCX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Principal Diversified International Fund (PINRX) and Invesco Discovery Fund (OPOCX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, PINRX achieves a 8.16% return, which is significantly lower than OPOCX's 30.98% return. Over the past 10 years, PINRX has underperformed OPOCX with an annualized return of 8.63%, while OPOCX has yielded a comparatively higher 16.53% annualized return.

PINRX

• 1D: 0.88%
• 1M: 5.11%
• YTD: 8.16%
• 6M: 10.57%
• 1Y: 23.11%
• 3Y*: 17.14%
• 5Y*: 7.10%
• 10Y*: 8.63%

OPOCX

• 1D: 2.40%
• 1M: 5.92%
• YTD: 30.98%
• 6M: 31.47%
• 1Y: 56.26%
• 3Y*: 26.88%
• 5Y*: 10.85%
• 10Y*: 16.53%

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

PINRX vs. OPOCX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
PINRX Principal Diversified International Fund	8.16%	32.03%	5.91%	17.21%	-20.26%	8.95%	16.91%	22.26%	-17.80%	27.96%
OPOCX Invesco Discovery Fund	30.98%	16.77%	22.61%	17.02%	-31.26%	14.78%	50.33%	36.81%	-4.15%	29.04%

Correlation

The correlation between PINRX and OPOCX is 0.67, 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	0.67
Correlation (3Y) Calculated over the trailing 3-year period	0.68
Correlation (5Y) Calculated over the trailing 5-year period	0.73
Correlation (10Y) Calculated over the trailing 10-year period	0.70
Correlation (All Time) Calculated using the full available price history since Dec 4, 2000	0.67

The correlation between PINRX and OPOCX has been stable across timeframes, ranging from 0.67 to 0.73 - a consistent structural relationship.

Return for Risk

PINRX vs. OPOCX — Risk / Return Rank

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

PINRX

PINRX Risk / Return Rank: 31
PINRX Sharpe Ratio Rank: 29
PINRX Sortino Ratio Rank: 28
PINRX Omega Ratio Rank: 30
PINRX Calmar Ratio Rank: 32
PINRX Martin Ratio Rank: 35

OPOCX

OPOCX Risk / Return Rank: 71
OPOCX Sharpe Ratio Rank: 67
OPOCX Sortino Ratio Rank: 53
OPOCX Omega Ratio Rank: 51
OPOCX Calmar Ratio Rank: 93
OPOCX Martin Ratio Rank: 93

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.

PINRX vs. OPOCX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Principal Diversified International Fund (PINRX) and Invesco Discovery Fund (OPOCX). 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.

	PINRX	OPOCX	Difference
Sharpe ratio Return per unit of total volatility	1.55	2.39	-0.84
Sortino ratio Return per unit of downside risk	2.22	3.07	-0.86
Omega ratio Gain probability vs. loss probability	1.29	1.39	-0.11
Calmar ratio Return relative to maximum drawdown	2.12	5.12	-3.00
Martin ratio Return relative to average drawdown	7.87	20.36	-12.50
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

PINRX vs. OPOCX - Sharpe Ratio Comparison

The current PINRX Sharpe Ratio is 1.55, which is lower than the OPOCX Sharpe Ratio of 2.39. The chart below compares the historical Sharpe Ratios of PINRX and OPOCX, 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

	PINRX	OPOCX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.55	2.39	-0.84
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.46	0.43	+0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.54	0.67	-0.13
Sharpe Ratio (All Time) Calculated using the full available price history	0.29	0.51	-0.22

Drawdowns

PINRX vs. OPOCX - Drawdown Comparison

The maximum PINRX drawdown since its inception was -62.91%, roughly equal to the maximum OPOCX drawdown of -64.17%. Use the drawdown chart below to compare losses from any high point for PINRX and OPOCX.

Drawdown Indicators

	PINRX	OPOCX	Difference
Max Drawdown Largest peak-to-trough decline	-62.91%	-64.17%	+1.26%
Max Drawdown (1Y) Largest decline over 1 year	-10.73%	-11.38%	+0.65%
Max Drawdown (3Y) Largest decline over 3 years	-14.13%	-28.60%	+14.47%
Max Drawdown (5Y) Largest decline over 5 years	-30.79%	-43.27%	+12.48%
Max Drawdown (10Y) Largest decline over 10 years	-36.58%	-43.27%	+6.69%
Current Drawdown Current decline from peak	-0.38%	-0.18%	-0.20%
Average Drawdown Average peak-to-trough decline	-16.96%	-18.87%	+1.91%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.88%	2.85%	+0.03%

Volatility

PINRX vs. OPOCX - Volatility Comparison

The current volatility for Principal Diversified International Fund (PINRX) is 4.50%, while Invesco Discovery Fund (OPOCX) has a volatility of 7.85%. This indicates that PINRX experiences smaller price fluctuations and is considered to be less risky than OPOCX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	PINRX	OPOCX	Difference
Volatility (1M) Calculated over the trailing 1-month period	4.50%	7.85%	-3.35%
Volatility (6M) Calculated over the trailing 6-month period	12.43%	20.07%	-7.64%
Volatility (1Y) Calculated over the trailing 1-year period	14.70%	24.38%	-9.68%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	15.61%	25.39%	-9.78%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.13%	24.85%	-8.72%

PINRX vs. OPOCX - Expense Ratio Comparison

PINRX has a 1.32% expense ratio, which is higher than OPOCX's 1.01% expense ratio.

Dividends

PINRX vs. OPOCX - Dividend Comparison

PINRX's dividend yield for the trailing twelve months is around 1.90%, less than OPOCX's 10.24% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OPOCX Invesco Discovery Fund	10.24%	13.41%	6.86%	0.00%	0.00%	20.51%	11.22%	6.42%	18.85%	12.46%	4.33%	6.84%
PINRX Principal Diversified International Fund	1.90%	3.22%	5.09%	2.13%	0.47%	13.14%	0.66%	1.67%	6.40%	1.24%	1.04%	0.88%

Frequently Asked Questions

Can I hold both PINRX and OPOCX in my portfolio?

PINRX and OPOCX have a correlation of 0.67, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, PINRX or OPOCX?

OPOCX has higher volatility (7.85%) compared to PINRX (4.50%). In terms of maximum drawdown, PINRX dropped -62.91% vs OPOCX's -64.17%.

Which has better risk-adjusted returns?

OPOCX currently has the higher Sharpe Ratio (2.39 vs 1.55), 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.