AIOIX vs. HRIOX

Last updated Apr 1, 2026

Compare and contrast key facts about American Century International Opportunities Fund (AIOIX) and Hood River International Opportunity Fund (HRIOX).

AIOIX is managed by American Century. It was launched on May 31, 2001. HRIOX is managed by Hood River Capital Management. It was launched on Sep 27, 2021.

Performance

AIOIX vs. HRIOX - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Century International Opportunities Fund (AIOIX) and Hood River International Opportunity Fund (HRIOX). The values are adjusted to include any dividend payments, if applicable.

AIOIX vs. HRIOX - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021
AIOIX American Century International Opportunities Fund	-0.42%	29.62%	1.31%	8.63%	-30.19%	-0.27%
HRIOX Hood River International Opportunity Fund	6.18%	43.32%	20.19%	30.74%	-25.86%	2.01%

Returns By Period

In the year-to-date period, AIOIX achieves a -0.42% return, which is significantly lower than HRIOX's 6.18% return.

AIOIX

• 1D: -0.92%
• 1M: -13.82%
• YTD: -0.42%
• 6M: 1.74%
• 1Y: 31.07%
• 3Y*: 9.88%
• 5Y*: 0.98%
• 10Y*: 6.96%

HRIOX

• 1D: -2.32%
• 1M: -13.38%
• YTD: 6.18%
• 6M: 13.19%
• 1Y: 71.03%
• 3Y*: 30.42%
• 5Y*: —
• 10Y*: —

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

AIOIX vs. HRIOX - Expense Ratio Comparison

AIOIX has a 1.48% expense ratio, which is lower than HRIOX's 1.50% expense ratio.

HRIOX

Hood River International Opportunity Fund

AIOIX

American Century International Opportunities Fund

Return for Risk

AIOIX vs. HRIOX — Risk / Return Rank

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

AIOIX

AIOIX Risk / Return Rank: 81
AIOIX Sharpe Ratio Rank: 83
AIOIX Sortino Ratio Rank: 81
AIOIX Omega Ratio Rank: 77
AIOIX Calmar Ratio Rank: 82
AIOIX Martin Ratio Rank: 84

HRIOX

HRIOX Risk / Return Rank: 97
HRIOX Sharpe Ratio Rank: 98
HRIOX Sortino Ratio Rank: 96
HRIOX Omega Ratio Rank: 94
HRIOX Calmar Ratio Rank: 98
HRIOX Martin Ratio Rank: 98

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.

AIOIX vs. HRIOX - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Century International Opportunities Fund (AIOIX) and Hood River International Opportunity Fund (HRIOX). 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.

	AIOIX	HRIOX	Difference
Sharpe ratio Return per unit of total volatility	1.56	2.89	-1.33
Sortino ratio Return per unit of downside risk	2.08	3.52	-1.44
Omega ratio Gain probability vs. loss probability	1.30	1.50	-0.20
Calmar ratio Return relative to maximum drawdown	2.00	4.81	-2.81
Martin ratio Return relative to average drawdown	8.50	19.64	-11.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AIOIX vs. HRIOX - Sharpe Ratio Comparison

The current AIOIX Sharpe Ratio is 1.56, which is lower than the HRIOX Sharpe Ratio of 2.89. The chart below compares the historical Sharpe Ratios of AIOIX and HRIOX, 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

	AIOIX	HRIOX	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	1.56	2.89	-1.33
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.05	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.37	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.52	0.68	-0.17

Correlation

The correlation between AIOIX and HRIOX is 0.85, 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

AIOIX vs. HRIOX - Dividend Comparison

AIOIX's dividend yield for the trailing twelve months is around 0.28%, less than HRIOX's 5.54% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AIOIX American Century International Opportunities Fund	0.28%	0.27%	0.32%	0.23%	0.00%	17.80%	3.18%	0.92%	5.28%	9.09%	0.04%	7.15%
HRIOX Hood River International Opportunity Fund	5.54%	5.88%	0.16%	1.44%	0.00%	0.21%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

AIOIX vs. HRIOX - Drawdown Comparison

The maximum AIOIX drawdown since its inception was -66.16%, which is greater than HRIOX's maximum drawdown of -38.76%. Use the drawdown chart below to compare losses from any high point for AIOIX and HRIOX.

Drawdown Indicators

	AIOIX	HRIOX	Difference
Max Drawdown Largest peak-to-trough decline	-66.16%	-38.76%	-27.40%
Max Drawdown (1Y) Largest decline over 1 year	-14.00%	-13.78%	-0.22%
Max Drawdown (5Y) Largest decline over 5 years	-41.19%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-41.19%	—	—
Current Drawdown Current decline from peak	-14.00%	-13.78%	-0.22%
Average Drawdown Average peak-to-trough decline	-16.12%	-12.72%	-3.40%
Ulcer Index Depth and duration of drawdowns from previous peaks	3.29%	3.37%	-0.08%

Volatility

AIOIX vs. HRIOX - Volatility Comparison

The current volatility for American Century International Opportunities Fund (AIOIX) is 8.19%, while Hood River International Opportunity Fund (HRIOX) has a volatility of 9.83%. This indicates that AIOIX experiences smaller price fluctuations and is considered to be less risky than HRIOX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AIOIX	HRIOX	Difference
Volatility (1M) Calculated over the trailing 1-month period	8.19%	9.83%	-1.64%
Volatility (6M) Calculated over the trailing 6-month period	13.95%	17.85%	-3.90%
Volatility (1Y) Calculated over the trailing 1-year period	19.37%	24.37%	-5.00%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	18.59%	20.76%	-2.17%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	18.70%	20.76%	-2.06%