AULDX vs. BULIX
Compare and contrast key facts about American Century Ultra Fund Class R6 (AULDX) and American Century Utilities Fund (BULIX).
AULDX is an actively managed fund by American Century. It was launched on Jul 26, 2013. BULIX is managed by American Century. It was launched on Feb 28, 1993.
Performance
AULDX vs. BULIX - Performance Comparison
Loading graphics...
AULDX vs. BULIX - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
AULDX American Century Ultra Fund Class R6 | -12.21% | 13.05% | 29.99% | 43.86% | -32.15% | 23.89% | 50.31% | 35.23% | 1.04% | 32.36% |
BULIX American Century Utilities Fund | 9.37% | 16.76% | 24.32% | -7.51% | -4.37% | 13.77% | -2.38% | 19.94% | 1.82% | 0.59% |
Returns By Period
In the year-to-date period, AULDX achieves a -12.21% return, which is significantly lower than BULIX's 9.37% return. Over the past 10 years, AULDX has outperformed BULIX with an annualized return of 16.09%, while BULIX has yielded a comparatively lower 7.31% annualized return.
AULDX
- 1D
- -0.65%
- 1M
- -8.77%
- YTD
- -12.21%
- 6M
- -10.72%
- 1Y
- 11.88%
- 3Y*
- 16.86%
- 5Y*
- 9.28%
- 10Y*
- 16.09%
BULIX
- 1D
- 0.75%
- 1M
- -2.97%
- YTD
- 9.37%
- 6M
- 8.12%
- 1Y
- 21.96%
- 3Y*
- 14.97%
- 5Y*
- 9.57%
- 10Y*
- 7.31%
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
AULDX vs. BULIX - Expense Ratio Comparison
AULDX has a 0.52% expense ratio, which is lower than BULIX's 0.65% expense ratio.
Return for Risk
AULDX vs. BULIX — Risk / Return Rank
AULDX
BULIX
AULDX vs. BULIX - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for American Century Ultra Fund Class R6 (AULDX) and American Century Utilities Fund (BULIX). 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.
| AULDX | BULIX | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.51 | 1.50 | -0.99 |
Sortino ratioReturn per unit of downside risk | 0.91 | 2.00 | -1.09 |
Omega ratioGain probability vs. loss probability | 1.12 | 1.28 | -0.15 |
Calmar ratioReturn relative to maximum drawdown | 0.56 | 2.89 | -2.33 |
Martin ratioReturn relative to average drawdown | 1.98 | 7.19 | -5.21 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading graphics...
Sharpe Ratios by Period
| AULDX | BULIX | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.51 | 1.50 | -0.99 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.41 | 0.58 | -0.17 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.73 | 0.41 | +0.33 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.69 | 0.47 | +0.22 |
Correlation
The correlation between AULDX and BULIX is 0.36, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
AULDX vs. BULIX - Dividend Comparison
AULDX's dividend yield for the trailing twelve months is around 12.07%, more than BULIX's 10.43% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
AULDX American Century Ultra Fund Class R6 | 12.07% | 10.60% | 3.32% | 5.68% | 6.97% | 6.42% | 2.67% | 4.18% | 7.94% | 6.19% | 4.45% | 5.06% |
BULIX American Century Utilities Fund | 10.43% | 11.60% | 2.36% | 2.65% | 7.78% | 7.50% | 7.55% | 2.97% | 6.91% | 7.70% | 6.99% | 5.87% |
Drawdowns
AULDX vs. BULIX - Drawdown Comparison
The maximum AULDX drawdown since its inception was -35.03%, smaller than the maximum BULIX drawdown of -55.21%. Use the drawdown chart below to compare losses from any high point for AULDX and BULIX.
Loading graphics...
Drawdown Indicators
| AULDX | BULIX | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -35.03% | -55.21% | +20.18% |
Max Drawdown (1Y)Largest decline over 1 year | -15.60% | -8.34% | -7.26% |
Max Drawdown (5Y)Largest decline over 5 years | -35.03% | -24.56% | -10.47% |
Max Drawdown (10Y)Largest decline over 10 years | -35.03% | -33.86% | -1.17% |
Current DrawdownCurrent decline from peak | -15.60% | -2.97% | -12.63% |
Average DrawdownAverage peak-to-trough decline | -6.23% | -10.06% | +3.83% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.38% | 3.35% | +1.03% |
Volatility
AULDX vs. BULIX - Volatility Comparison
American Century Ultra Fund Class R6 (AULDX) has a higher volatility of 5.77% compared to American Century Utilities Fund (BULIX) at 4.86%. This indicates that AULDX's price experiences larger fluctuations and is considered to be riskier than BULIX based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
Loading graphics...
Volatility by Period
| AULDX | BULIX | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.77% | 4.86% | +0.91% |
Volatility (6M)Calculated over the trailing 6-month period | 12.65% | 9.76% | +2.89% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.09% | 15.50% | +7.59% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 22.54% | 16.57% | +5.97% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.00% | 17.99% | +4.01% |