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AIOIX vs. SPY
Performance
Risk-Adjusted Performance
Dividends
Drawdowns
Volatility

Correlation

The correlation between AIOIX and SPY is 0.61, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.


-0.50.00.51.00.6

Performance

AIOIX vs. SPY - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century International Opportunities Fund (AIOIX) and SPDR S&P 500 ETF (SPY). The values are adjusted to include any dividend payments, if applicable.

-5.00%0.00%5.00%10.00%SeptemberOctoberNovemberDecember2025February
1.05%
9.78%
AIOIX
SPY

Key characteristics

Sharpe Ratio

AIOIX:

0.48

SPY:

1.91

Sortino Ratio

AIOIX:

0.74

SPY:

2.57

Omega Ratio

AIOIX:

1.09

SPY:

1.35

Calmar Ratio

AIOIX:

0.16

SPY:

2.88

Martin Ratio

AIOIX:

1.78

SPY:

11.96

Ulcer Index

AIOIX:

3.87%

SPY:

2.03%

Daily Std Dev

AIOIX:

14.20%

SPY:

12.68%

Max Drawdown

AIOIX:

-75.21%

SPY:

-55.19%

Current Drawdown

AIOIX:

-36.53%

SPY:

0.00%

Returns By Period

In the year-to-date period, AIOIX achieves a 4.91% return, which is significantly higher than SPY's 4.34% return. Over the past 10 years, AIOIX has underperformed SPY with an annualized return of 1.56%, while SPY has yielded a comparatively higher 13.21% annualized return.


AIOIX

YTD

4.91%

1M

4.34%

6M

1.80%

1Y

5.25%

5Y*

-2.41%

10Y*

1.56%

SPY

YTD

4.34%

1M

2.33%

6M

10.15%

1Y

23.99%

5Y*

14.44%

10Y*

13.21%

*Annualized

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


AIOIX vs. SPY - Expense Ratio Comparison

AIOIX has a 1.48% expense ratio, which is higher than SPY's 0.09% expense ratio.


AIOIX
American Century International Opportunities Fund
Expense ratio chart for AIOIX: current value at 1.48% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%1.48%
Expense ratio chart for SPY: current value at 0.09% compared with the broader market ranging from 0.00% to 2.12%.0.50%1.00%1.50%2.00%0.09%

Risk-Adjusted Performance

AIOIX vs. SPY — Risk-Adjusted Performance Rank

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

AIOIX
The Risk-Adjusted Performance Rank of AIOIX is 1515
Overall Rank
The Sharpe Ratio Rank of AIOIX is 1616
Sharpe Ratio Rank
The Sortino Ratio Rank of AIOIX is 1717
Sortino Ratio Rank
The Omega Ratio Rank of AIOIX is 1414
Omega Ratio Rank
The Calmar Ratio Rank of AIOIX is 1010
Calmar Ratio Rank
The Martin Ratio Rank of AIOIX is 2121
Martin Ratio Rank

SPY
The Risk-Adjusted Performance Rank of SPY is 7878
Overall Rank
The Sharpe Ratio Rank of SPY is 7878
Sharpe Ratio Rank
The Sortino Ratio Rank of SPY is 7474
Sortino Ratio Rank
The Omega Ratio Rank of SPY is 7777
Omega Ratio Rank
The Calmar Ratio Rank of SPY is 7878
Calmar Ratio Rank
The Martin Ratio Rank of SPY is 8181
Martin Ratio Rank
The risk-adjusted ranks indicate the investment's position relative to the market. A rank closer to 100 signifies top-performing investments, while a rank closer to 0 might suggest underperformance, based on the selected ratio. The values are calculated based on the past 12 months of returns.

AIOIX vs. SPY - Risk-Adjusted Performance Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century International Opportunities Fund (AIOIX) and SPDR S&P 500 ETF (SPY). 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.


Sharpe ratio
The chart of Sharpe ratio for AIOIX, currently valued at 0.48, compared to the broader market-1.000.001.002.003.004.000.481.91
The chart of Sortino ratio for AIOIX, currently valued at 0.74, compared to the broader market0.002.004.006.008.0010.0012.000.742.57
The chart of Omega ratio for AIOIX, currently valued at 1.09, compared to the broader market1.002.003.004.001.091.35
The chart of Calmar ratio for AIOIX, currently valued at 0.16, compared to the broader market0.005.0010.0015.0020.000.162.88
The chart of Martin ratio for AIOIX, currently valued at 1.78, compared to the broader market0.0020.0040.0060.0080.001.7811.96
AIOIX
SPY

The current AIOIX Sharpe Ratio is 0.48, which is lower than the SPY Sharpe Ratio of 1.91. The chart below compares the historical Sharpe Ratios of AIOIX and SPY, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.


Rolling 12-month Sharpe Ratio0.001.002.003.004.00SeptemberOctoberNovemberDecember2025February
0.48
1.91
AIOIX
SPY

Dividends

AIOIX vs. SPY - Dividend Comparison

AIOIX's dividend yield for the trailing twelve months is around 0.31%, less than SPY's 1.16% yield.


TTM20242023202220212020201920182017201620152014
AIOIX
American Century International Opportunities Fund
0.31%0.33%0.23%0.00%0.38%0.00%0.91%1.30%0.54%0.04%1.11%0.39%
SPY
SPDR S&P 500 ETF
1.16%1.21%1.40%1.65%1.20%1.52%1.75%2.04%1.80%2.03%2.06%1.87%

Drawdowns

AIOIX vs. SPY - Drawdown Comparison

The maximum AIOIX drawdown since its inception was -75.21%, which is greater than SPY's maximum drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for AIOIX and SPY. For additional features, visit the drawdowns tool.


-40.00%-30.00%-20.00%-10.00%0.00%SeptemberOctoberNovemberDecember2025February
-36.53%
0
AIOIX
SPY

Volatility

AIOIX vs. SPY - Volatility Comparison

American Century International Opportunities Fund (AIOIX) has a higher volatility of 4.17% compared to SPDR S&P 500 ETF (SPY) at 3.13%. This indicates that AIOIX's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.


2.00%3.00%4.00%5.00%6.00%7.00%SeptemberOctoberNovemberDecember2025February
4.17%
3.13%
AIOIX
SPY
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Disclaimer

The information contained herein does not constitute investment advice and made available for educational purposes only. Prices and returns on equities are listed without consideration of fees, commissions, taxes, penalties, or interest payable due to purchasing, holding, or selling.

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