AAMI vs. VOO

Last updated Jun 24, 2026

AAMI (Acadian Asset Management Inc) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 5 years, AAMI returned 25.38%/yr vs 13.13%/yr for VOO. A 0.53 correlation means they provide meaningful diversification when combined.

Performance

AAMI vs. VOO - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Acadian Asset Management Inc (AAMI) and Vanguard S&P 500 ETF (VOO). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AAMI achieves a 55.85% return, which is significantly higher than VOO's 8.19% return.

AAMI

• 1D: -1.19%
• 1M: 2.13%
• YTD: 55.85%
• 6M: 50.81%
• 1Y: 126.45%
• 3Y*: 53.50%
• 5Y*: 25.38%
• 10Y*: —

VOO

• 1D: -1.42%
• 1M: -1.34%
• YTD: 8.19%
• 6M: 7.24%
• 1Y: 23.69%
• 3Y*: 20.78%
• 5Y*: 13.13%
• 10Y*: 15.61%

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

AAMI vs. VOO - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018
AAMI Acadian Asset Management Inc	55.85%	78.64%	37.70%	-6.72%	-19.45%	33.00%	93.85%	-0.80%	-30.71%
VOO Vanguard S&P 500 ETF	8.19%	17.82%	24.98%	26.32%	-18.17%	28.79%	18.32%	31.37%	-1.61%

Correlation

The correlation between AAMI and VOO is 0.52, 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	0.52
Correlation (3Y) Calculated over the trailing 3-year period	0.45
Correlation (5Y) Calculated over the trailing 5-year period	0.53
Correlation (All Time) Calculated using the full available price history since Mar 26, 2018	0.53

The correlation between AAMI and VOO has been stable across timeframes, ranging from 0.45 to 0.53 - a consistent structural relationship.

Return for Risk

AAMI vs. VOO — Risk / Return Rank

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

AAMI

AAMI Risk / Return Rank: 94
AAMI Sharpe Ratio Rank: 96
AAMI Sortino Ratio Rank: 90
AAMI Omega Ratio Rank: 93
AAMI Calmar Ratio Rank: 96
AAMI Martin Ratio Rank: 95

VOO

VOO Risk / Return Rank: 59
VOO Sharpe Ratio Rank: 59
VOO Sortino Ratio Rank: 56
VOO Omega Ratio Rank: 58
VOO Calmar Ratio Rank: 56
VOO Martin Ratio Rank: 67

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.

AAMI vs. VOO - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Acadian Asset Management Inc (AAMI) and Vanguard S&P 500 ETF (VOO). 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.

	AAMI	VOO	Difference
Sharpe ratio: Return per unit of total volatility	3.09	1.91	+1.18
Sortino ratio: Return per unit of downside risk	3.17	2.60	+0.57
Omega ratio: Gain probability vs. loss probability	1.48	1.35	+0.13
Calmar ratio: Return relative to maximum drawdown	6.99	2.67	+4.32
Martin ratio: Return relative to average drawdown	18.68	11.96	+6.72

AAMI vs. VOO - Sharpe Ratio Comparison

The current AAMI Sharpe Ratio is 3.09, which is higher than the VOO Sharpe Ratio of 1.91. The chart below compares the historical Sharpe Ratios of AAMI and VOO, 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

AAMI vs. VOO - Drawdown Comparison

The maximum AAMI drawdown since its inception was -75.23%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for AAMI and VOO.

Drawdown Indicators

	AAMI	VOO	Difference
Max Drawdown Largest peak-to-trough decline	-75.23%	-33.99%	-41.24%
Max Drawdown (1Y) Largest decline over 1 year	-18.20%	-8.90%	-9.30%
Max Drawdown (3Y) Largest decline over 3 years	-29.63%	-18.69%	-10.94%
Max Drawdown (5Y) Largest decline over 5 years	-51.45%	-24.52%	-26.93%
Max Drawdown (10Y) Largest decline over 10 years	—	-33.99%	—
Current Drawdown Current decline from peak	-11.74%	-3.14%	-8.60%
Average Drawdown Average peak-to-trough decline	-20.57%	-3.68%	-16.89%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.79%	1.99%	+4.80%

Volatility

AAMI vs. VOO - Volatility Comparison

Acadian Asset Management Inc (AAMI) has a higher volatility of 14.50% compared to Vanguard S&P 500 ETF (VOO) at 4.83%. This indicates that AAMI's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AAMI	VOO	Difference
Volatility (1M) Calculated over the trailing 1-month period	14.50%	4.83%	+9.67%
Volatility (6M) Calculated over the trailing 6-month period	28.43%	9.82%	+18.61%
Volatility (1Y) Calculated over the trailing 1-year period	41.15%	12.46%	+28.69%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	34.89%	16.91%	+17.98%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	42.18%	18.02%	+24.16%

Dividends

AAMI vs. VOO - Dividend Comparison

AAMI's dividend yield for the trailing twelve months is around 0.30%, less than VOO's 1.05% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AAMI Acadian Asset Management Inc	0.30%	0.09%	0.15%	0.21%	0.19%	0.16%	1.19%	3.91%	2.81%	0.00%	0.00%	0.00%
VOO Vanguard S&P 500 ETF	1.05%	1.13%	1.24%	1.46%	1.69%	1.25%	1.54%	1.88%	2.06%	1.78%	2.02%	2.10%

Frequently Asked Questions

Can I hold both AAMI and VOO in my portfolio?

AAMI and VOO have a correlation of 0.52, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.

Which is riskier, AAMI or VOO?

AAMI has higher volatility (14.50%) compared to VOO (4.83%). In terms of maximum drawdown, AAMI dropped -75.23% vs VOO's -33.99%.

Which has better risk-adjusted returns?

AAMI currently has the higher Sharpe Ratio (3.09 vs 1.91), 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.