OIDYX vs. VWILX

Last updated Jun 4, 2026

OIDYX (Invesco International Diversified Fund) and VWILX (Vanguard International Growth Fund Admiral Shares) are both mutual funds - OIDYX is a Foreign Large Cap Equities fund managed by Invesco, while VWILX is a Large Cap Growth Equities fund managed by Vanguard. Over the past 10 years, OIDYX returned 7.46%/yr vs 9.94%/yr for VWILX. Their correlation of 0.94 suggests significant overlap in exposure. OIDYX charges 0.19%/yr vs 0.32%/yr for VWILX.

Performance

OIDYX vs. VWILX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Invesco International Diversified Fund (OIDYX) and Vanguard International Growth Fund Admiral Shares (VWILX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, OIDYX achieves a 13.20% return, which is significantly higher than VWILX's 6.25% return. Over the past 10 years, OIDYX has underperformed VWILX with an annualized return of 7.46%, while VWILX has yielded a comparatively higher 9.94% annualized return.

OIDYX

• 1D: 0.98%
• 1M: 7.60%
• YTD: 13.20%
• 6M: 15.63%
• 1Y: 25.07%
• 3Y*: 11.89%
• 5Y*: 2.85%
• 10Y*: 7.46%

VWILX

• 1D: 0.35%
• 1M: 4.18%
• YTD: 6.25%
• 6M: 6.75%
• 1Y: 13.81%
• 3Y*: 12.51%
• 5Y*: -1.21%
• 10Y*: 9.94%

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

OIDYX vs. VWILX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
OIDYX Invesco International Diversified Fund	13.20%	21.74%	-2.37%	15.74%	-25.05%	4.30%	20.82%	25.06%	-14.44%	32.75%
VWILX Vanguard International Growth Fund Admiral Shares	6.25%	20.08%	9.18%	14.80%	-30.80%	-12.81%	59.77%	31.50%	-12.58%	43.17%

Correlation

The correlation between OIDYX and VWILX is 0.91, indicating a strong positive relationship between their price movements. Combining them offers limited diversification - they tend to fall together during downturns.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.91
Correlation (3Y) Calculated over the trailing 3-year period	0.90
Correlation (5Y) Calculated over the trailing 5-year period	0.91
Correlation (10Y) Calculated over the trailing 10-year period	0.91
Correlation (All Time) Calculated using the full available price history since Sep 30, 2005	0.94

The correlation between OIDYX and VWILX has been stable across timeframes, ranging from 0.90 to 0.94 - a consistent structural relationship.

Return for Risk

OIDYX vs. VWILX — Risk / Return Rank

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

OIDYX

OIDYX Risk / Return Rank: 36
OIDYX Sharpe Ratio Rank: 35
OIDYX Sortino Ratio Rank: 34
OIDYX Omega Ratio Rank: 35
OIDYX Calmar Ratio Rank: 36
OIDYX Martin Ratio Rank: 39

VWILX

VWILX Risk / Return Rank: 10
VWILX Sharpe Ratio Rank: 9
VWILX Sortino Ratio Rank: 9
VWILX Omega Ratio Rank: 9
VWILX Calmar Ratio Rank: 10
VWILX Martin Ratio Rank: 10

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.

OIDYX vs. VWILX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Invesco International Diversified Fund (OIDYX) and Vanguard International Growth Fund Admiral Shares (VWILX). 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.

	OIDYX	VWILX	Difference
Sharpe ratio: Return per unit of total volatility	1.72	0.76	+0.96
Sortino ratio: Return per unit of downside risk	2.42	1.16	+1.26
Omega ratio: Gain probability vs. loss probability	1.31	1.14	+0.17
Calmar ratio: Return relative to maximum drawdown	2.24	0.96	+1.28
Martin ratio: Return relative to average drawdown	8.47	3.10	+5.37
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

OIDYX vs. VWILX - Sharpe Ratio Comparison

The current OIDYX Sharpe Ratio is 1.72, which is higher than the VWILX Sharpe Ratio of 0.76. The chart below compares the historical Sharpe Ratios of OIDYX and VWILX, 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

	OIDYX	VWILX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.72	0.76	+0.96
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.17	-0.05	+0.23
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.45	0.46	-0.01
Sharpe Ratio (All Time) Calculated using the full available price history	0.38	0.35	+0.03

Drawdowns

OIDYX vs. VWILX - Drawdown Comparison

The maximum OIDYX drawdown since its inception was -58.32%, roughly equal to the maximum VWILX drawdown of -59.49%. Use the drawdown chart below to compare losses from any high point for OIDYX and VWILX.

Drawdown Indicators

	OIDYX	VWILX	Difference
Max Drawdown Largest peak-to-trough decline	-58.32%	-59.49%	+1.17%
Max Drawdown (1Y) Largest decline over 1 year	-11.07%	-14.06%	+2.99%
Max Drawdown (3Y) Largest decline over 3 years	-17.59%	-20.02%	+2.43%
Max Drawdown (5Y) Largest decline over 5 years	-37.96%	-53.56%	+15.60%
Max Drawdown (10Y) Largest decline over 10 years	-37.96%	-54.08%	+16.12%
Current Drawdown Current decline from peak	0.00%	-14.66%	+14.66%
Average Drawdown Average peak-to-trough decline	-12.17%	-15.09%	+2.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	2.92%	4.36%	-1.44%

Volatility

OIDYX vs. VWILX - Volatility Comparison

Invesco International Diversified Fund (OIDYX) has a higher volatility of 5.09% compared to Vanguard International Growth Fund Admiral Shares (VWILX) at 4.73%. This indicates that OIDYX's price experiences larger fluctuations and is considered to be riskier than VWILX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	OIDYX	VWILX	Difference
Volatility (1M) Calculated over the trailing 1-month period	5.09%	4.73%	+0.36%
Volatility (6M) Calculated over the trailing 6-month period	11.99%	14.45%	-2.46%
Volatility (1Y) Calculated over the trailing 1-year period	14.49%	17.96%	-3.47%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	16.50%	23.43%	-6.93%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	16.51%	21.70%	-5.19%

OIDYX vs. VWILX - Expense Ratio Comparison

OIDYX has a 0.19% expense ratio, which is lower than VWILX's 0.32% expense ratio.

Dividends

OIDYX vs. VWILX - Dividend Comparison

OIDYX's dividend yield for the trailing twelve months is around 30.86%, more than VWILX's 6.49% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
OIDYX Invesco International Diversified Fund	30.86%	34.94%	5.44%	0.37%	14.77%	8.15%	1.17%	2.13%	1.18%	0.65%	0.71%	1.21%
VWILX Vanguard International Growth Fund Admiral Shares	6.49%	6.89%	9.81%	1.92%	7.03%	0.36%	2.38%	1.30%	5.52%	0.84%	1.42%	1.53%

Frequently Asked Questions

Can I hold both OIDYX and VWILX in my portfolio?

With a correlation of 0.91, OIDYX and VWILX move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.

Which is riskier, OIDYX or VWILX?

OIDYX has higher volatility (5.09%) compared to VWILX (4.73%). In terms of maximum drawdown, OIDYX dropped -58.32% vs VWILX's -59.49%.

Which has better risk-adjusted returns?

OIDYX currently has the higher Sharpe Ratio (1.72 vs 0.76), 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.