TWCIX vs. AONIX
Compare and contrast key facts about American Century Select Fund (TWCIX) and American Century Investments One Choice Portfolio: Very Conservative (AONIX).
TWCIX is managed by American Century. It was launched on Jun 30, 1971. AONIX is managed by American Century. It was launched on Sep 29, 2004.
Performance
TWCIX vs. AONIX - Performance Comparison
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TWCIX vs. AONIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
TWCIX American Century Select Fund | -12.29% | 16.30% | 26.15% | 39.93% | -28.82% | 25.47% | 33.99% | 36.30% | -3.54% | 28.90% |
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, TWCIX achieves a -12.29% return, which is significantly lower than AONIX's -1.31% return. Over the past 10 years, TWCIX has outperformed AONIX with an annualized return of 14.46%, while AONIX has yielded a comparatively lower 4.26% annualized return.
TWCIX
- 1D
- -0.45%
- 1M
- -8.75%
- YTD
- -12.29%
- 6M
- -10.54%
- 1Y
- 13.57%
- 3Y*
- 15.91%
- 5Y*
- 9.81%
- 10Y*
- 14.46%
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%
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TWCIX vs. AONIX - Expense Ratio Comparison
TWCIX has a 0.94% expense ratio, which is higher than AONIX's 0.00% expense ratio.
Return for Risk
TWCIX vs. AONIX — Risk / Return Rank
TWCIX
AONIX
TWCIX vs. AONIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Select Fund (TWCIX) 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.
| TWCIX | AONIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.61 | 1.09 | -0.48 |
Sortino ratioReturn per unit of downside risk | 1.03 | 1.53 | -0.50 |
Omega ratioGain probability vs. loss probability | 1.14 | 1.22 | -0.08 |
Calmar ratioReturn relative to maximum drawdown | 0.74 | 1.47 | -0.74 |
Martin ratioReturn relative to average drawdown | 2.69 | 5.76 | -3.07 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| TWCIX | AONIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.61 | 1.09 | -0.48 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.46 | 0.47 | -0.01 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.69 | 0.82 | -0.13 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.57 | 0.84 | -0.27 |
Correlation
The correlation between TWCIX and AONIX is 0.74, 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
TWCIX vs. AONIX - Dividend Comparison
TWCIX's dividend yield for the trailing twelve months is around 11.44%, more than AONIX's 3.69% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
TWCIX American Century Select Fund | 11.44% | 10.04% | 3.67% | 5.21% | 10.36% | 8.25% | 6.26% | 5.42% | 9.05% | 6.30% | 3.43% | 6.16% |
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
TWCIX vs. AONIX - Drawdown Comparison
The maximum TWCIX drawdown since its inception was -57.31%, which is greater than AONIX's maximum drawdown of -15.27%. Use the drawdown chart below to compare losses from any high point for TWCIX and AONIX.
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Drawdown Indicators
| TWCIX | AONIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -57.31% | -15.27% | -42.04% |
Max Drawdown (1Y)Largest decline over 1 year | -14.66% | -3.55% | -11.11% |
Max Drawdown (5Y)Largest decline over 5 years | -31.24% | -15.27% | -15.97% |
Max Drawdown (10Y)Largest decline over 10 years | -31.24% | -15.27% | -15.97% |
Current DrawdownCurrent decline from peak | -14.66% | -3.26% | -11.40% |
Average DrawdownAverage peak-to-trough decline | -12.42% | -1.99% | -10.43% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.01% | 0.91% | +3.10% |
Volatility
TWCIX vs. AONIX - Volatility Comparison
American Century Select Fund (TWCIX) has a higher volatility of 5.75% compared to American Century Investments One Choice Portfolio: Very Conservative (AONIX) at 1.67%. This indicates that TWCIX'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.
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Volatility by Period
| TWCIX | AONIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.75% | 1.67% | +4.08% |
Volatility (6M)Calculated over the trailing 6-month period | 12.15% | 2.70% | +9.45% |
Volatility (1Y)Calculated over the trailing 1-year period | 22.70% | 4.82% | +17.88% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 21.43% | 5.36% | +16.07% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 20.94% | 5.23% | +15.71% |