AOMIX vs. AONIX

Last updated Apr 1, 2026

Compare and contrast key facts about American Century Investments One Choice Portfolio: Moderate (AOMIX) and American Century Investments One Choice Portfolio: Very Conservative (AONIX).

AOMIX is managed by American Century. It was launched on Sep 29, 2004. AONIX is managed by American Century. It was launched on Sep 29, 2004.

Performance

AOMIX vs. AONIX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century Investments One Choice Portfolio: Moderate (AOMIX) and American Century Investments One Choice Portfolio: Very Conservative (AONIX). The values are adjusted to include any dividend payments, if applicable.

AOMIX vs. AONIX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AOMIX American Century Investments One Choice Portfolio: Moderate	-3.27%	12.97%	10.07%	13.04%	-16.37%	11.82%	16.08%	20.14%	-5.23%	14.27%
AONIX American Century Investments One Choice Portfolio: Very Conservative	-1.31%	7.52%	5.92%	7.60%	-11.35%	6.63%	9.43%	11.96%	-0.93%	6.46%

Returns By Period

In the year-to-date period, AOMIX achieves a -3.27% return, which is significantly lower than AONIX's -1.31% return. Over the past 10 years, AOMIX has outperformed AONIX with an annualized return of 7.29%, while AONIX has yielded a comparatively lower 4.26% annualized return.

AOMIX

• 1D: 0.00%
• 1M: -6.68%
• YTD: -3.27%
• 6M: -1.76%
• 1Y: 9.57%
• 3Y*: 8.94%
• 5Y*: 4.31%
• 10Y*: 7.29%

AONIX

• 1D: 0.26%
• 1M: -3.26%
• YTD: -1.31%
• 6M: -0.38%
• 1Y: 5.04%
• 3Y*: 5.42%
• 5Y*: 2.53%
• 10Y*: 4.26%

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

AOMIX vs. AONIX - Expense Ratio Comparison

AOMIX has a 0.00% expense ratio, which is lower than AONIX's 0.00% 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%.

AOMIX

American Century Investments One Choice Portfolio: Moderate

AONIX

American Century Investments One Choice Portfolio: Very Conservative

Return for Risk

AOMIX vs. AONIX — Risk / Return Rank

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

AOMIX

AOMIX Risk / Return Rank: 46
AOMIX Sharpe Ratio Rank: 46
AOMIX Sortino Ratio Rank: 45
AOMIX Omega Ratio Rank: 45
AOMIX Calmar Ratio Rank: 44
AOMIX Martin Ratio Rank: 48

AONIX

AONIX Risk / Return Rank: 60
AONIX Sharpe Ratio Rank: 61
AONIX Sortino Ratio Rank: 59
AONIX Omega Ratio Rank: 57
AONIX Calmar Ratio Rank: 64
AONIX Martin Ratio Rank: 60

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.

AOMIX vs. AONIX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century Investments One Choice Portfolio: Moderate (AOMIX) and American Century Investments One Choice Portfolio: Very Conservative (AONIX). 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.

	AOMIX	AONIX	Difference
Sharpe ratio Return per unit of total volatility	0.91	1.09	-0.18
Sortino ratio Return per unit of downside risk	1.32	1.53	-0.20
Omega ratio Gain probability vs. loss probability	1.19	1.22	-0.03
Calmar ratio Return relative to maximum drawdown	1.11	1.47	-0.36
Martin ratio Return relative to average drawdown	4.79	5.76	-0.97
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AOMIX vs. AONIX - Sharpe Ratio Comparison

The current AOMIX Sharpe Ratio is 0.91, which is comparable to the AONIX Sharpe Ratio of 1.09. The chart below compares the historical Sharpe Ratios of AOMIX and AONIX, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	AOMIX	AONIX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	0.91	1.09	-0.18
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.41	0.47	-0.06
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.65	0.82	-0.17
Sharpe Ratio (All Time) Calculated using the full available price history	0.56	0.84	-0.28

Correlation

The correlation between AOMIX and AONIX is 0.88, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.

Dividends

AOMIX vs. AONIX - Dividend Comparison

AOMIX's dividend yield for the trailing twelve months is around 6.84%, more than AONIX's 3.69% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AOMIX American Century Investments One Choice Portfolio: Moderate	6.84%	6.69%	2.53%	2.29%	10.49%	9.55%	8.48%	6.61%	8.27%	2.11%	3.64%	7.11%
AONIX American Century Investments One Choice Portfolio: Very Conservative	3.69%	3.82%	3.10%	2.80%	7.19%	6.36%	3.46%	3.57%	5.83%	3.08%	2.16%	2.79%

Drawdowns

AOMIX vs. AONIX - Drawdown Comparison

The maximum AOMIX drawdown since its inception was -38.62%, which is greater than AONIX's maximum drawdown of -15.27%. Use the drawdown chart below to compare losses from any high point for AOMIX and AONIX.

Drawdown Indicators

	AOMIX	AONIX	Difference
Max Drawdown Largest peak-to-trough decline	-38.62%	-15.27%	-23.35%
Max Drawdown (1Y) Largest decline over 1 year	-7.86%	-3.55%	-4.31%
Max Drawdown (5Y) Largest decline over 5 years	-23.24%	-15.27%	-7.97%
Max Drawdown (10Y) Largest decline over 10 years	-24.91%	-15.27%	-9.64%
Current Drawdown Current decline from peak	-6.91%	-3.26%	-3.65%
Average Drawdown Average peak-to-trough decline	-4.94%	-1.99%	-2.95%
Ulcer Index Depth and duration of drawdowns from previous peaks	1.82%	0.91%	+0.91%

Volatility

AOMIX vs. AONIX - Volatility Comparison

American Century Investments One Choice Portfolio: Moderate (AOMIX) has a higher volatility of 3.51% compared to American Century Investments One Choice Portfolio: Very Conservative (AONIX) at 1.67%. This indicates that AOMIX's price experiences larger fluctuations and is considered to be riskier than AONIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AOMIX	AONIX	Difference
Volatility (1M) Calculated over the trailing 1-month period	3.51%	1.67%	+1.84%
Volatility (6M) Calculated over the trailing 6-month period	6.05%	2.70%	+3.35%
Volatility (1Y) Calculated over the trailing 1-year period	10.61%	4.82%	+5.79%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	10.45%	5.36%	+5.09%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	11.24%	5.23%	+6.01%