AIOIX vs. BGEIX
AIOIX (American Century International Opportunities Fund) and BGEIX (American Century Global Gold Fund) are both mutual funds - AIOIX is a Foreign Small & Mid Cap Equities fund managed by American Century, while BGEIX is a Gold fund managed by American Century. Over the past 10 years, AIOIX returned 7.07%/yr vs 9.68%/yr for BGEIX. Their 0.39 correlation means their historical movements had little consistent relationship. AIOIX charges 1.48%/yr vs 0.65%/yr for BGEIX.
Performance
AIOIX vs. BGEIX - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, AIOIX achieves a 5.49% return, which is significantly higher than BGEIX's -13.78% return. Over the past 10 years, AIOIX has underperformed BGEIX with an annualized return of 7.07%, while BGEIX has yielded a comparatively higher 9.68% annualized return.
AIOIX
- 1D
- -0.32%
- 1M
- -4.87%
- 6M
- -2.65%
- YTD
- 5.49%
- 1Y
- 15.65%
- 3Y*
- 11.23%
- 5Y*
- 0.67%
- 10Y*
- 7.07%
- ALL TIME*
- 10.18%
BGEIX
- 1D
- -2.99%
- 1M
- -5.17%
- 6M
- -21.65%
- YTD
- -13.78%
- 1Y
- 44.40%
- 3Y*
- 38.97%
- 5Y*
- 17.65%
- 10Y*
- 9.68%
- ALL TIME*
- 5.03%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $0.00 | $0.00 | $0.00 | |
| $0.00 | $0.00 | $0.00 |
AIOIX vs. BGEIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AIOIX American Century International Opportunities Fund | 5.49% | 29.62% | 1.31% | 8.63% | -30.19% | 5.79% | 31.07% | 28.95% | -22.19% | 45.09% |
BGEIX American Century Global Gold Fund | -13.78% | 158.45% | 15.10% | 7.52% | -12.54% | -8.85% | 18.92% | 37.82% | -7.43% | 10.62% |
Correlation
The correlation between AIOIX and BGEIX is 0.62, which is moderate. They have sometimes moved together and sometimes differently, sharing some price drivers without tracking each other closely.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.62 |
Correlation (3Y) Balances recent behavior with more history. | 0.53 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.53 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.42 |
Correlation (All Time) Calculated using the full available price history since Jan 2, 2002 | 0.39 |
Over the past year, AIOIX and BGEIX have become more correlated (0.62) than their long-term average of 0.39, meaning their price movements have been converging.
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
AIOIX vs. BGEIX — Risk / Return Rank
AIOIX
BGEIX
AIOIX vs. BGEIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century International Opportunities Fund (AIOIX) and American Century Global Gold Fund (BGEIX). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| AIOIX | BGEIX | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.32 | ||
| Sortino ratioReturn per unit of downside risk | -0.38 | ||
| Omega ratioGain probability vs. loss probability | 1.14 | 1.20 | -0.06 |
| Calmar ratioReturn relative to maximum drawdown | 1.11 | 1.22 | -0.10 |
| Martin ratioReturn relative to average drawdown | 3.42 | 2.67 | +0.75 |
Loading charts...
Drawdowns
AIOIX vs. BGEIX - Drawdown Comparison
The maximum AIOIX drawdown since its inception was -66.16%, smaller than the maximum BGEIX drawdown of -78.69%. Use the drawdown chart below to compare losses from any high point for AIOIX and BGEIX.
Loading charts...
Drawdown Indicators
| AIOIX | BGEIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -66.16% | -78.69% | +12.53% |
Max Drawdown (1Y)Largest decline over 1 year | -14.00% | -38.61% | +24.61% |
Max Drawdown (3Y)Largest decline over 3 years | -17.09% | -38.61% | +21.52% |
Max Drawdown (5Y)Largest decline over 5 years | -41.19% | -46.62% | +5.43% |
Max Drawdown (10Y)Largest decline over 10 years | -41.19% | -51.92% | +10.73% |
Current DrawdownCurrent decline from peak | -10.66% | -35.61% | +24.95% |
Average DrawdownAverage peak-to-trough decline | -15.96% | -35.14% | +19.18% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.55% | 17.60% | -13.05% |
Volatility
AIOIX vs. BGEIX - Volatility Comparison
The current volatility for American Century International Opportunities Fund (AIOIX) is 7.94%, while American Century Global Gold Fund (BGEIX) has a volatility of 12.06%. This indicates that AIOIX experiences smaller price fluctuations and is considered to be less risky than BGEIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading charts...
Volatility by Period
| AIOIX | BGEIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.94% | 12.06% | -4.12% |
Volatility (6M)Calculated over the trailing 6-month period | 19.30% | 37.57% | -18.27% |
Volatility (1Y)Calculated over the trailing 1-year period | 21.79% | 45.63% | -23.84% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 19.49% | 34.43% | -14.94% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.03% | 33.50% | -14.47% |
AIOIX vs. BGEIX - Expense Ratio Comparison
AIOIX has a 1.48% expense ratio, which is higher than BGEIX's 0.65% expense ratio.
Dividends
AIOIX vs. BGEIX - Dividend Comparison
AIOIX's dividend yield for the trailing twelve months is around 0.26%, less than BGEIX's 0.93% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AIOIX American Century International Opportunities Fund | 0.26% | 0.27% | 0.32% | 0.23% | 0.00% | 17.80% | 3.18% | 0.92% | 5.28% | 9.09% | 0.04% | 7.15% |
BGEIX American Century Global Gold Fund | 0.93% | 0.85% | 1.36% | 1.56% | 1.38% | 2.13% | 0.56% | 0.87% | 0.00% | 0.00% | 10.56% | 0.00% |
Frequently Asked Questions
AIOIX and BGEIX have a correlation of 0.62, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
BGEIX has higher volatility (12.06%) compared to AIOIX (7.94%). In terms of maximum drawdown, AIOIX dropped -66.16% vs BGEIX's -78.69%.
BGEIX currently has the higher Sharpe Ratio (1.03 vs 0.72), 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.
Find the right allocation for AIOIX and BGEIX
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer