AOA vs. VGWAX

Last updated Jun 4, 2026

AOA (iShares Core 80/20 Aggressive Allocation ETF) and VGWAX (Vanguard Global Wellington Fund Admiral Shares) are both Diversified Portfolio funds. Over the past 5 years, AOA returned 9.15%/yr vs 8.46%/yr for VGWAX. Their correlation of 0.91 suggests significant overlap in exposure. AOA charges 0.15%/yr vs 0.29%/yr for VGWAX.

Performance

AOA vs. VGWAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core 80/20 Aggressive Allocation ETF (AOA) and Vanguard Global Wellington Fund Admiral Shares (VGWAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AOA achieves a 9.93% return, which is significantly lower than VGWAX's 11.04% return.

AOA

• 1D: -0.50%
• 1M: 4.14%
• YTD: 9.93%
• 6M: 10.64%
• 1Y: 24.29%
• 3Y*: 17.52%
• 5Y*: 9.15%
• 10Y*: 10.56%

VGWAX

• 1D: 0.00%
• 1M: 3.25%
• YTD: 11.04%
• 6M: 12.06%
• 1Y: 22.61%
• 3Y*: 14.48%
• 5Y*: 8.46%
• 10Y*: —

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

AOA vs. VGWAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
AOA iShares Core 80/20 Aggressive Allocation ETF	9.93%	19.59%	13.55%	18.27%	-16.23%	15.42%	12.82%	22.60%	-9.18%
VGWAX Vanguard Global Wellington Fund Admiral Shares	11.04%	17.48%	6.27%	12.54%	-7.07%	13.51%	7.51%	22.16%	-5.05%

Correlation

The correlation between AOA and VGWAX is 0.82, 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	0.82
Correlation (3Y) Calculated over the trailing 3-year period	0.84
Correlation (5Y) Calculated over the trailing 5-year period	0.89
Correlation (All Time) Calculated using the full available price history since Mar 15, 2018	0.91

The correlation between AOA and VGWAX has been stable across timeframes, ranging from 0.82 to 0.91 - a consistent structural relationship.

AOA vs. VGWAX - Sectors Allocation Comparison

Sectors	AOA	VGWAX
Technology	27.4%	18.1%
Financial Services	16.1%	19.3%
Industrials	12.0%	13.6%
Consumer Cyclical	9.5%	6.5%
Communication Services	8.3%	4.1%
Healthcare	8.0%	14.0%
Consumer Defensive	5.0%	6.1%
Energy	4.3%	6.7%
Basic Materials	4.2%	4.1%
Utilities	2.7%	6.0%
Real Estate	2.4%	1.5%

Return for Risk

AOA vs. VGWAX — Risk / Return Rank

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

AOA

AOA Risk / Return Rank: 67
AOA Sharpe Ratio Rank: 68
AOA Sortino Ratio Rank: 69
AOA Omega Ratio Rank: 69
AOA Calmar Ratio Rank: 59
AOA Martin Ratio Rank: 70

VGWAX

VGWAX Risk / Return Rank: 81
VGWAX Sharpe Ratio Rank: 88
VGWAX Sortino Ratio Rank: 87
VGWAX Omega Ratio Rank: 83
VGWAX Calmar Ratio Rank: 75
VGWAX Martin Ratio Rank: 73

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.

AOA vs. VGWAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core 80/20 Aggressive Allocation ETF (AOA) and Vanguard Global Wellington Fund Admiral Shares (VGWAX). 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.

	AOA	VGWAX	Difference
Sharpe ratio: Return per unit of total volatility	2.30	2.88	-0.58
Sortino ratio: Return per unit of downside risk	3.23	4.11	-0.88
Omega ratio: Gain probability vs. loss probability	1.43	1.55	-0.12
Calmar ratio: Return relative to maximum drawdown	2.98	3.41	-0.43
Martin ratio: Return relative to average drawdown	13.20	13.91	-0.70
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AOA vs. VGWAX - Sharpe Ratio Comparison

The current AOA Sharpe Ratio is 2.30, which is comparable to the VGWAX Sharpe Ratio of 2.88. The chart below compares the historical Sharpe Ratios of AOA and VGWAX, 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

	AOA	VGWAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.30	2.88	-0.58
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.71	0.93	-0.22
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.78	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.69	0.84	-0.15

Drawdowns

AOA vs. VGWAX - Drawdown Comparison

The maximum AOA drawdown since its inception was -28.38%, which is greater than VGWAX's maximum drawdown of -25.28%. Use the drawdown chart below to compare losses from any high point for AOA and VGWAX.

Drawdown Indicators

	AOA	VGWAX	Difference
Max Drawdown Largest peak-to-trough decline	-28.38%	-25.28%	-3.10%
Max Drawdown (1Y) Largest decline over 1 year	-8.20%	-6.67%	-1.53%
Max Drawdown (3Y) Largest decline over 3 years	-12.94%	-7.69%	-5.25%
Max Drawdown (5Y) Largest decline over 5 years	-23.62%	-17.46%	-6.16%
Max Drawdown (10Y) Largest decline over 10 years	-28.38%	—	—
Current Drawdown Current decline from peak	-0.50%	0.00%	-0.50%
Average Drawdown Average peak-to-trough decline	-4.05%	-2.90%	-1.15%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.84%	1.63%	+0.21%

Volatility

AOA vs. VGWAX - Volatility Comparison

iShares Core 80/20 Aggressive Allocation ETF (AOA) has a higher volatility of 3.25% compared to Vanguard Global Wellington Fund Admiral Shares (VGWAX) at 2.36%. This indicates that AOA's price experiences larger fluctuations and is considered to be riskier than VGWAX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AOA	VGWAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.25%	2.36%	+0.89%
Volatility (6M) Calculated over the trailing 6-month period	8.51%	6.33%	+2.18%
Volatility (1Y) Calculated over the trailing 1-year period	10.63%	7.91%	+2.72%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.98%	9.17%	+3.81%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.55%	10.97%	+2.58%

AOA vs. VGWAX - Expense Ratio Comparison

AOA has a 0.15% expense ratio, which is lower than VGWAX's 0.29% expense ratio.

Dividends

AOA vs. VGWAX - Dividend Comparison

AOA's dividend yield for the trailing twelve months is around 2.04%, less than VGWAX's 6.09% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AOA iShares Core 80/20 Aggressive Allocation ETF	2.04%	2.18%	2.30%	2.22%	2.10%	1.67%	1.71%	2.50%	2.37%	5.09%	2.26%	2.15%
VGWAX Vanguard Global Wellington Fund Admiral Shares	6.09%	6.78%	7.47%	2.66%	4.50%	3.36%	1.64%	2.08%	2.62%	0.00%	0.00%	0.00%

Frequently Asked Questions

Can I hold both AOA and VGWAX in my portfolio?

AOA and VGWAX have a correlation of 0.82, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AOA or VGWAX?

AOA has higher volatility (3.25%) compared to VGWAX (2.36%). In terms of maximum drawdown, AOA dropped -28.38% vs VGWAX's -25.28%.

Which has better risk-adjusted returns?

VGWAX currently has the higher Sharpe Ratio (2.88 vs 2.30), 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.