AOGIX vs. VTSAX

Last updated Jun 3, 2026

AOGIX (American Century Investments One Choice Portfolio: Aggressive) and VTSAX (Vanguard Total Stock Market Index Fund Admiral Shares) are both mutual funds - AOGIX is a Diversified Portfolio fund managed by American Century, while VTSAX is a Large Cap Blend Equities fund managed by Vanguard. Over the past 10 years, AOGIX returned 9.75%/yr vs 15.09%/yr for VTSAX. With a 0.96 correlation, they move nearly in lockstep. AOGIX charges 0.00%/yr vs 0.04%/yr for VTSAX.

Performance

AOGIX vs. VTSAX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Investments One Choice Portfolio: Aggressive (AOGIX) and Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX). The values are adjusted to include any dividend payments, if applicable.

Returns By Period

In the year-to-date period, AOGIX achieves a 7.97% return, which is significantly lower than VTSAX's 11.71% return. Over the past 10 years, AOGIX has underperformed VTSAX with an annualized return of 9.75%, while VTSAX has yielded a comparatively higher 15.09% annualized return.

AOGIX

• 1D: 0.22%
• 1M: 3.08%
• YTD: 7.97%
• 6M: 8.83%
• 1Y: 19.41%
• 3Y*: 14.32%
• 5Y*: 6.75%
• 10Y*: 9.75%

VTSAX

• 1D: 0.25%
• 1M: 5.10%
• YTD: 11.71%
• 6M: 12.07%
• 1Y: 29.65%
• 3Y*: 22.24%
• 5Y*: 12.88%
• 10Y*: 15.09%

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

AOGIX vs. VTSAX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AOGIX American Century Investments One Choice Portfolio: Aggressive	7.97%	14.77%	12.26%	15.18%	-17.29%	13.87%	18.17%	23.79%	-5.69%	16.89%
VTSAX Vanguard Total Stock Market Index Fund Admiral Shares	11.71%	17.12%	23.23%	26.51%	-19.52%	25.72%	20.98%	30.79%	-5.18%	21.16%

Correlation

The correlation between AOGIX and VTSAX is 0.94, 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	0.94
Correlation (3Y) Calculated over the trailing 3-year period	0.95
Correlation (5Y) Calculated over the trailing 5-year period	0.96
Correlation (10Y) Calculated over the trailing 10-year period	0.96
Correlation (All Time) Calculated using the full available price history since Oct 4, 2004	0.96

The correlation between AOGIX and VTSAX has been stable across timeframes, ranging from 0.94 to 0.96 - a consistent structural relationship.

Return for Risk

AOGIX vs. VTSAX — Risk / Return Rank

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

AOGIX

AOGIX Risk / Return Rank: 43
AOGIX Sharpe Ratio Rank: 44
AOGIX Sortino Ratio Rank: 43
AOGIX Omega Ratio Rank: 44
AOGIX Calmar Ratio Rank: 36
AOGIX Martin Ratio Rank: 47

VTSAX

VTSAX Risk / Return Rank: 72
VTSAX Sharpe Ratio Rank: 73
VTSAX Sortino Ratio Rank: 65
VTSAX Omega Ratio Rank: 64
VTSAX Calmar Ratio Rank: 74
VTSAX Martin Ratio Rank: 83

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.

AOGIX vs. VTSAX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Investments One Choice Portfolio: Aggressive (AOGIX) and Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX). 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.

	AOGIX	VTSAX	Difference
Sharpe ratio Return per unit of total volatility	1.97	2.49	-0.52
Sortino ratio Return per unit of downside risk	2.77	3.38	-0.61
Omega ratio Gain probability vs. loss probability	1.36	1.45	-0.08
Calmar ratio Return relative to maximum drawdown	2.31	3.38	-1.07
Martin ratio Return relative to average drawdown	9.94	15.63	-5.69
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AOGIX vs. VTSAX - Sharpe Ratio Comparison

The current AOGIX Sharpe Ratio is 1.97, which is comparable to the VTSAX Sharpe Ratio of 2.49. The chart below compares the historical Sharpe Ratios of AOGIX and VTSAX, 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

	AOGIX	VTSAX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.97	2.49	-0.52
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.53	0.75	-0.21
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.71	0.82	-0.11
Sharpe Ratio (All Time) Calculated using the full available price history	0.54	0.47	+0.07

Drawdowns

AOGIX vs. VTSAX - Drawdown Comparison

The maximum AOGIX drawdown since its inception was -46.90%, smaller than the maximum VTSAX drawdown of -55.33%. Use the drawdown chart below to compare losses from any high point for AOGIX and VTSAX.

Drawdown Indicators

	AOGIX	VTSAX	Difference
Max Drawdown Largest peak-to-trough decline	-46.90%	-55.33%	+8.43%
Max Drawdown (1Y) Largest decline over 1 year	-8.56%	-8.92%	+0.36%
Max Drawdown (3Y) Largest decline over 3 years	-13.40%	-19.36%	+5.96%
Max Drawdown (5Y) Largest decline over 5 years	-25.21%	-25.36%	+0.15%
Max Drawdown (10Y) Largest decline over 10 years	-29.68%	-34.97%	+5.29%
Current Drawdown Current decline from peak	0.00%	0.00%	0.00%
Average Drawdown Average peak-to-trough decline	-6.34%	-9.01%	+2.67%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.99%	1.93%	+0.06%

Volatility

AOGIX vs. VTSAX - Volatility Comparison

American Century Investments One Choice Portfolio: Aggressive (AOGIX) and Vanguard Total Stock Market Index Fund Admiral Shares (VTSAX) have volatilities of 2.92% and 2.95%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AOGIX	VTSAX	Difference
Volatility (1M) Calculated over the trailing 1-month period	2.92%	2.95%	-0.03%
Volatility (6M) Calculated over the trailing 6-month period	8.14%	9.20%	-1.06%
Volatility (1Y) Calculated over the trailing 1-year period	10.12%	12.21%	-2.09%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	12.76%	17.36%	-4.60%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	13.75%	18.41%	-4.66%

AOGIX vs. VTSAX - Expense Ratio Comparison

AOGIX has a 0.00% expense ratio, which is lower than VTSAX's 0.04% 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

AOGIX vs. VTSAX - Dividend Comparison

AOGIX's dividend yield for the trailing twelve months is around 8.01%, more than VTSAX's 1.00% yield.

Position	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AOGIX American Century Investments One Choice Portfolio: Aggressive	8.01%	8.64%	2.60%	2.12%	11.69%	10.35%	9.37%	12.98%	9.78%	1.44%	4.35%	10.54%
VTSAX Vanguard Total Stock Market Index Fund Admiral Shares	1.00%	1.11%	1.26%	1.42%	1.65%	1.20%	1.41%	1.76%	2.03%	1.71%	1.92%	1.98%

Frequently Asked Questions

Can I hold both AOGIX and VTSAX in my portfolio?

With a correlation of 0.94, AOGIX and VTSAX 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, AOGIX or VTSAX?

VTSAX has higher volatility (2.95%) compared to AOGIX (2.92%). In terms of maximum drawdown, AOGIX dropped -46.90% vs VTSAX's -55.33%.

Which has better risk-adjusted returns?

VTSAX currently has the higher Sharpe Ratio (2.48 vs 1.97), 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.