ITOT vs. AOA

Last updated Jun 5, 2026

ITOT (iShares Core S&P Total U.S. Stock Market ETF) and AOA (iShares Core 80/20 Aggressive Allocation ETF) are both exchange-traded funds - ITOT is a Large Cap Blend Equities fund tracking the S&P Total Market Index, while AOA is a Diversified Portfolio fund tracking the S&P Target Risk Aggressive Index. Both are passively managed. Over the past 10 years, ITOT returned 15.01%/yr vs 10.53%/yr for AOA. Their correlation of 0.93 suggests significant overlap in exposure. ITOT charges 0.03%/yr vs 0.15%/yr for AOA.

Performance

ITOT vs. AOA - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in iShares Core S&P Total U.S. Stock Market ETF (ITOT) and iShares Core 80/20 Aggressive Allocation ETF (AOA). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, ITOT achieves a 11.78% return, which is significantly higher than AOA's 10.13% return. Over the past 10 years, ITOT has outperformed AOA with an annualized return of 15.01%, while AOA has yielded a comparatively lower 10.53% annualized return.

ITOT

• 1D: 0.48%
• 1M: 4.64%
• YTD: 11.78%
• 6M: 11.52%
• 1Y: 28.81%
• 3Y*: 22.39%
• 5Y*: 12.80%
• 10Y*: 15.01%

AOA

• 1D: 0.18%
• 1M: 3.39%
• YTD: 10.13%
• 6M: 10.89%
• 1Y: 24.17%
• 3Y*: 17.70%
• 5Y*: 9.19%
• 10Y*: 10.53%

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

ITOT vs. AOA - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
ITOT iShares Core S&P Total U.S. Stock Market ETF	11.78%	17.00%	23.80%	26.12%	-19.47%	25.68%	20.71%	30.67%	-5.33%	21.37%
AOA iShares Core 80/20 Aggressive Allocation ETF	10.13%	19.59%	13.55%	18.27%	-16.23%	15.42%	12.82%	22.60%	-7.86%	20.05%

Correlation

The correlation between ITOT and AOA is 0.95 - these two move nearly in lockstep. At this level, holding both provides almost no diversification benefit. If you already own one, adding the other does little to reduce portfolio risk.

	Correlation
Correlation (1Y) Calculated over the trailing 1-year period	0.95
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.95
Correlation (10Y) Calculated over the trailing 10-year period	0.94
Correlation (All Time) Calculated using the full available price history since Nov 12, 2008	0.93

The correlation between ITOT and AOA has been stable across timeframes, ranging from 0.93 to 0.95 - a consistent structural relationship.

ITOT vs. AOA - Sectors Allocation Comparison

Sectors	ITOT	AOA
Technology	33.8%	27.4%
Financial Services	12.1%	16.1%
Communication Services	10.3%	8.3%
Consumer Cyclical	10.1%	9.5%
Industrials	9.5%	12.0%
Healthcare	9.0%	8.0%
Consumer Defensive	4.7%	5.0%
Energy	3.7%	4.3%
Real Estate	2.4%	2.4%
Utilities	2.3%	2.7%
Basic Materials	2.1%	4.2%

Return for Risk

ITOT vs. AOA — Risk / Return Rank

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

ITOT

ITOT Risk / Return Rank: 73
ITOT Sharpe Ratio Rank: 74
ITOT Sortino Ratio Rank: 73
ITOT Omega Ratio Rank: 72
ITOT Calmar Ratio Rank: 66
ITOT Martin Ratio Rank: 78

AOA

AOA Risk / Return Rank: 70
AOA Sharpe Ratio Rank: 71
AOA Sortino Ratio Rank: 72
AOA Omega Ratio Rank: 72
AOA Calmar Ratio Rank: 61
AOA Martin Ratio Rank: 72

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.

ITOT vs. AOA - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for iShares Core S&P Total U.S. Stock Market ETF (ITOT) and iShares Core 80/20 Aggressive Allocation ETF (AOA). 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.

	ITOT	AOA	Difference
Sharpe ratio: Return per unit of total volatility	2.37	2.28	+0.09
Sortino ratio: Return per unit of downside risk	3.24	3.22	+0.02
Omega ratio: Gain probability vs. loss probability	1.43	1.42	0.00
Calmar ratio: Return relative to maximum drawdown	3.25	2.96	+0.29
Martin ratio: Return relative to average drawdown	14.92	13.13	+1.79
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

ITOT vs. AOA - Sharpe Ratio Comparison

The current ITOT Sharpe Ratio is 2.37, which is comparable to the AOA Sharpe Ratio of 2.28. The chart below compares the historical Sharpe Ratios of ITOT and AOA, 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

	ITOT	AOA	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	2.37	2.28	+0.09
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.74	0.71	+0.03
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.82	0.78	+0.04
Sharpe Ratio (All Time) Calculated using the full available price history	0.57	0.69	-0.12

Drawdowns

ITOT vs. AOA - Drawdown Comparison

The maximum ITOT drawdown since its inception was -55.20%, which is greater than AOA's maximum drawdown of -28.38%. Use the drawdown chart below to compare losses from any high point for ITOT and AOA.

Drawdown Indicators

	ITOT	AOA	Difference
Max Drawdown Largest peak-to-trough decline	-55.20%	-28.38%	-26.82%
Max Drawdown (1Y) Largest decline over 1 year	-8.90%	-8.20%	-0.70%
Max Drawdown (3Y) Largest decline over 3 years	-19.44%	-12.94%	-6.50%
Max Drawdown (5Y) Largest decline over 5 years	-25.36%	-23.62%	-1.74%
Max Drawdown (10Y) Largest decline over 10 years	-35.00%	-28.38%	-6.62%
Current Drawdown Current decline from peak	-0.25%	-0.31%	+0.06%
Average Drawdown Average peak-to-trough decline	-6.97%	-4.05%	-2.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.94%	1.85%	+0.09%

Volatility

ITOT vs. AOA - Volatility Comparison

The current volatility for iShares Core S&P Total U.S. Stock Market ETF (ITOT) is 2.94%, while iShares Core 80/20 Aggressive Allocation ETF (AOA) has a volatility of 3.16%. This indicates that ITOT experiences smaller price fluctuations and is considered to be less risky than AOA based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	ITOT	AOA	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.94%	3.16%	-0.22%
Volatility (6M) Calculated over the trailing 6-month period	9.14%	8.51%	+0.63%
Volatility (1Y) Calculated over the trailing 1-year period	12.19%	10.63%	+1.56%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	17.35%	12.97%	+4.38%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.26%	13.54%	+4.72%

ITOT vs. AOA - Expense Ratio Comparison

ITOT has a 0.03% expense ratio, which is lower than AOA's 0.15% expense ratio. Despite the difference, both funds are considered low-cost compared to the broader market, where average expense ratios usually range from 0.3% to 0.9%.

Dividends

ITOT vs. AOA - Dividend Comparison

ITOT's dividend yield for the trailing twelve months is around 0.97%, less than AOA's 2.04% 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%
ITOT iShares Core S&P Total U.S. Stock Market ETF	0.97%	1.11%	1.23%	1.47%	1.66%	1.18%	1.41%	1.88%	2.14%	1.69%	1.83%	2.01%

Frequently Asked Questions

Can I hold both ITOT and AOA in my portfolio?

With a correlation of 0.95, ITOT and AOA 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, ITOT or AOA?

AOA has higher volatility (3.16%) compared to ITOT (2.94%). In terms of maximum drawdown, ITOT dropped -55.20% vs AOA's -28.38%.

Which ETF is better, ITOT or AOA?

On 10-year performance, ITOT leads with 15.01% vs 10.53% for AOA. On fees, ITOT is cheaper at 0.03% per year. On volatility, ITOT has been the lower-risk option at 2.94%. The better choice depends on whether you care most about return, fees, risk, or income.

Which ETF has performed better, ITOT or AOA?

Over the 10-year period, ITOT has performed better with a 15.01% return vs 10.53%. Past performance does not guarantee future results, so compare this with risk, fees, and fund exposure.

Which ETF is cheaper, ITOT or AOA?

ITOT is cheaper with a 0.03% expense ratio, compared with 0.15% for AOA.

Which ETF pays a higher dividend yield, ITOT or AOA?

AOA has the higher dividend yield at 2.04%, compared with 0.97% for ITOT.

What is the main difference between ITOT and AOA?

ITOT is categorized as Large Cap Blend Equities, while AOA is Diversified Portfolio. ITOT tracks S&P Total Market Index, while AOA tracks S&P Target Risk Aggressive Index. Their fees differ too: 0.03% for ITOT and 0.15% for AOA.

Which has better risk-adjusted returns?

ITOT currently has the higher Sharpe Ratio (2.37 vs 2.28), 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.