AIIEX vs. PRBLX

Last updated Jun 23, 2026

AIIEX (Invesco EQV International Equity Fund) and PRBLX (Parnassus Core Equity Fund) are both mutual funds - AIIEX is a Foreign Large Cap Equities fund managed by Invesco, while PRBLX is a Large Cap Blend Equities fund managed by Parnassus. Over the past 10 years, AIIEX returned 6.59%/yr vs 13.76%/yr for PRBLX. A 0.64 correlation means they provide meaningful diversification when combined. AIIEX charges 1.35%/yr vs 0.82%/yr for PRBLX.

Performance

AIIEX vs. PRBLX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco EQV International Equity Fund (AIIEX) and Parnassus Core Equity Fund (PRBLX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AIIEX achieves a 11.51% return, which is significantly higher than PRBLX's 7.77% return. Over the past 10 years, AIIEX has underperformed PRBLX with an annualized return of 6.59%, while PRBLX has yielded a comparatively higher 13.76% annualized return.

AIIEX

• 1D: 1.61%
• 1M: 3.55%
• YTD: 11.51%
• 6M: 12.04%
• 1Y: 20.03%
• 3Y*: 10.08%
• 5Y*: 4.52%
• 10Y*: 6.59%

PRBLX

• 1D: 1.65%
• 1M: 2.48%
• YTD: 7.77%
• 6M: 7.55%
• 1Y: 16.44%
• 3Y*: 15.69%
• 5Y*: 10.64%
• 10Y*: 13.76%

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

AIIEX vs. PRBLX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AIIEX Invesco EQV International Equity Fund	11.51%	15.92%	0.24%	17.55%	-18.58%	5.53%	13.35%	25.47%	-15.48%	22.65%
PRBLX Parnassus Core Equity Fund	7.77%	11.67%	18.58%	24.97%	-18.64%	27.59%	21.21%	30.68%	-0.30%	16.63%

Correlation

The correlation between AIIEX and PRBLX is 0.79, 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	0.79
Correlation (3Y) Calculated over the trailing 3-year period	0.77
Correlation (5Y) Calculated over the trailing 5-year period	0.79
Correlation (10Y) Calculated over the trailing 10-year period	0.77
Correlation (All Time) Calculated using the full available price history since Jan 4, 1993	0.64

The correlation between AIIEX and PRBLX shifts across timeframes, from 0.64 (all time) to 0.79 (1 year), reflecting how their relationship changes across market environments.

Return for Risk

AIIEX vs. PRBLX — Risk / Return Rank

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

AIIEX

AIIEX Risk / Return Rank: 21
AIIEX Sharpe Ratio Rank: 20
AIIEX Sortino Ratio Rank: 19
AIIEX Omega Ratio Rank: 21
AIIEX Calmar Ratio Rank: 20
AIIEX Martin Ratio Rank: 26

PRBLX

PRBLX Risk / Return Rank: 22
PRBLX Sharpe Ratio Rank: 24
PRBLX Sortino Ratio Rank: 23
PRBLX Omega Ratio Rank: 22
PRBLX Calmar Ratio Rank: 17
PRBLX Martin Ratio Rank: 24

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.

AIIEX vs. PRBLX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco EQV International Equity Fund (AIIEX) and Parnassus Core Equity Fund (PRBLX). 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.

	AIIEX	PRBLX	Difference
Sharpe ratio: Return per unit of total volatility	1.19	1.31	-0.12
Sortino ratio: Return per unit of downside risk	1.72	1.87	-0.15
Omega ratio: Gain probability vs. loss probability	1.22	1.23	-0.01
Calmar ratio: Return relative to maximum drawdown	1.52	1.39	+0.13
Martin ratio: Return relative to average drawdown	5.74	5.38	+0.36

AIIEX vs. PRBLX - Sharpe Ratio Comparison

The current AIIEX Sharpe Ratio is 1.19, which is comparable to the PRBLX Sharpe Ratio of 1.31. The chart below compares the historical Sharpe Ratios of AIIEX and PRBLX, 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

AIIEX vs. PRBLX - Drawdown Comparison

The maximum AIIEX drawdown since its inception was -58.58%, which is greater than PRBLX's maximum drawdown of -42.20%. Use the drawdown chart below to compare losses from any high point for AIIEX and PRBLX.

Drawdown Indicators

	AIIEX	PRBLX	Difference
Max Drawdown Largest peak-to-trough decline	-58.58%	-42.20%	-16.38%
Max Drawdown (1Y) Largest decline over 1 year	-12.55%	-11.63%	-0.92%
Max Drawdown (3Y) Largest decline over 3 years	-16.72%	-16.31%	-0.41%
Max Drawdown (5Y) Largest decline over 5 years	-30.76%	-26.31%	-4.45%
Max Drawdown (10Y) Largest decline over 10 years	-36.94%	-30.09%	-6.85%
Current Drawdown Current decline from peak	0.00%	-0.13%	+0.13%
Average Drawdown Average peak-to-trough decline	-14.23%	-4.04%	-10.19%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.30%	2.98%	+0.32%

Volatility

AIIEX vs. PRBLX - Volatility Comparison

Invesco EQV International Equity Fund (AIIEX) has a higher volatility of 6.30% compared to Parnassus Core Equity Fund (PRBLX) at 4.67%. This indicates that AIIEX's price experiences larger fluctuations and is considered to be riskier than PRBLX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AIIEX	PRBLX	Difference
Volatility (1M) Calculated over the trailing 1-month period	6.30%	4.67%	+1.63%
Volatility (6M) Calculated over the trailing 6-month period	13.76%	9.97%	+3.79%
Volatility (1Y) Calculated over the trailing 1-year period	16.07%	12.35%	+3.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.56%	16.34%	+0.22%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.83%	17.31%	-0.48%

AIIEX vs. PRBLX - Expense Ratio Comparison

AIIEX has a 1.35% expense ratio, which is higher than PRBLX's 0.82% expense ratio.

Dividends

AIIEX vs. PRBLX - Dividend Comparison

AIIEX's dividend yield for the trailing twelve months is around 16.04%, less than PRBLX's 17.66% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AIIEX Invesco EQV International Equity Fund	16.04%	17.88%	7.57%	1.56%	11.90%	25.61%	12.69%	8.80%	9.83%	2.56%	1.22%	1.24%
PRBLX Parnassus Core Equity Fund	17.66%	19.08%	10.00%	6.01%	10.13%	7.77%	5.87%	8.02%	9.64%	7.16%	3.80%	9.62%

Frequently Asked Questions

Can I hold both AIIEX and PRBLX in my portfolio?

AIIEX and PRBLX have a correlation of 0.79, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AIIEX or PRBLX?

AIIEX has higher volatility (6.30%) compared to PRBLX (4.67%). In terms of maximum drawdown, AIIEX dropped -58.58% vs PRBLX's -42.20%.

Which has better risk-adjusted returns?

PRBLX currently has the higher Sharpe Ratio (1.31 vs 1.19), 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.