- ISIN
- US02508H4442
- CUSIP
- 02508H444
- Issuer
- American Century
- Inception Date
- Jul 26, 2013
- Category
- Large Cap Growth Equities
- Index Tracked
- No Index (Active)
- Distribution Policy
- Distributing
- Asset Class
- Equity
- Asset Class Size
- Large-Cap
- Asset Class Style
- Growth
Share Price Chart
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Performance
AULDX Performance Chart
American Century Ultra Fund Class R6 (AULDX) is up 5.5% since the beginning of the year. AULDX is currently trading at $108 per share. Investors who bought $1,000 worth of AULDX shares 5 years ago would now be looking at an investment worth $1,723.
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Returns By Period
American Century Ultra Fund Class R6 (AULDX) has returned 5.47% so far this year and 21.86% over the past 12 months. Looking at the last ten years, AULDX has achieved an annualized return of 18.33%, outperforming the S&P 500 Index benchmark, which averaged 13.88% per year.
American Century Ultra Fund Class R6
- 1D
- 1.51%
- 1M
- -1.75%
- YTD
- 5.47%
- 6M
- 4.82%
- 1Y
- 21.86%
- 3Y*
- 19.64%
- 5Y*
- 11.49%
- 10Y*
- 18.33%
Benchmark (S&P 500 Index)
- 1D
- -0.37%
- 1M
- -0.01%
- YTD
- 9.16%
- 6M
- 8.64%
- 1Y
- 25.22%
- 3Y*
- 19.78%
- 5Y*
- 11.99%
- 10Y*
- 13.88%
AULDX Monthly Returns History
Based on dividend-adjusted daily data since Jan 2, 2014, AULDX's average daily return is +0.07%, while the average monthly return is +1.36%. At this rate, an investment would double in approximately 4.3 years.
Historically, 64% of months were positive and 36% were negative. The best month was Apr 2020 with a return of +16.0%, while the worst month was Apr 2022 at -13.1%. The longest winning streak lasted 15 consecutive months, and the longest losing streak was 5 months.
On a daily basis, AULDX closed higher 55% of trading days. The best single day was Apr 9, 2025 with a return of +12.1%, while the worst single day was Mar 16, 2020 at -12.7%.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | -0.51% | -3.29% | -5.13% | 12.51% | 6.47% | -3.56% | 5.47% | ||||||
| 2025 | 1.82% | -4.74% | -8.54% | 1.15% | 8.55% | 5.55% | 2.09% | 1.33% | 4.54% | 4.99% | -1.91% | -1.25% | 13.05% |
| 2024 | 2.08% | 6.85% | 1.76% | -3.66% | 6.37% | 6.34% | -2.60% | 1.94% | 2.12% | -0.64% | 6.50% | 0.18% | 29.99% |
| 2023 | 9.69% | -1.69% | 7.83% | 0.92% | 5.54% | 6.54% | 2.86% | -1.76% | -5.61% | -2.46% | 11.57% | 5.02% | 43.86% |
| 2022 | -8.85% | -4.47% | 4.05% | -13.05% | -3.40% | -9.09% | 14.42% | -5.75% | -9.34% | 5.77% | 4.43% | -9.18% | -32.15% |
| 2021 | -1.62% | 1.00% | 0.77% | 7.86% | -2.39% | 6.86% | 3.93% | 3.52% | -5.57% | 7.75% | -0.97% | 1.46% | 23.89% |
Benchmark Metrics
American Century Ultra Fund Class R6 has an annualized alpha of 2.32%, beta of 1.15, and R2 of 0.90 versus S&P 500 Index. Calculated based on daily prices since January 02, 2014.
- This fund captured 123.99% of S&P 500 Index gains and 108.02% of its losses - amplifying both gains and losses, but participating more in upside than downside.
- This fund generated an annualized alpha of 2.32% versus S&P 500 Index - delivering returns beyond what market exposure alone would predict.
- With beta of 1.15 and R2 of 0.90, this fund moves broadly in line with S&P 500 Index - much of its variation is explained by market exposure rather than independent behavior.
- Alpha
- 2.32%
- Beta
- 1.15
- R²
- 0.90
- Upside Capture
- 123.99%
- Downside Capture
- 108.02%
Expense Ratio
AULDX has an expense ratio of 0.52%, placing it in the medium range.
Return for Risk
Risk / Return Rank
AULDX ranks 19 for risk / return — in the bottom 19% of mutual funds on our site. This means you're taking on significantly more risk than the returns justify. Consider whether the potential upside is worth the volatility, or explore alternatives with better risk / return profiles.
Return / Risk — by metrics
The table below present risk-adjusted performance metrics for American Century Ultra Fund Class R6 (AULDX) and compare them to S&P 500 Index.
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.
| AULDX | Benchmark | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.80 | ||
| Sortino ratioReturn per unit of downside risk | -1.03 | ||
| Omega ratioGain probability vs. loss probability | 1.22 | 1.37 | -0.15 |
| Calmar ratioReturn relative to maximum drawdown | 1.36 | 2.78 | -1.42 |
| Martin ratioReturn relative to average drawdown | 4.65 | 12.44 | -7.78 |
Dividends
Dividend History
American Century Ultra Fund Class R6 provided a 10.05% dividend yield over the last twelve months, with an annual payout of $10.89 per share.
| Period | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dividend | $10.89 | $10.89 | $3.34 | $4.54 | $4.09 | $5.94 | $2.12 | $2.28 | $3.33 | $2.77 | $1.60 | $1.82 |
Dividend yield | 10.05% | 10.60% | 3.32% | 5.68% | 6.97% | 6.42% | 2.67% | 4.18% | 7.94% | 6.19% | 4.45% | 5.06% |
Monthly Dividends
The table displays the monthly dividend distributions for American Century Ultra Fund Class R6. The dividends shown in the table have been adjusted to account for any splits that may have occurred.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Total | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | ||||||
| 2025 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $10.89 | $10.89 |
| 2024 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $3.34 | $3.34 |
| 2023 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $4.54 | $4.54 |
| 2022 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $4.09 | $4.09 |
| 2021 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $0.00 | $5.94 | $5.94 |
Drawdowns
Drawdowns Chart
The Drawdowns chart displays portfolio losses from any high point along the way. Drawdowns are calculated considering price movements and all distributions paid, if any.
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Worst Drawdowns
The table below displays the maximum drawdowns of the American Century Ultra Fund Class R6. A maximum drawdown is a measure of risk, indicating the largest reduction in portfolio value due to a series of losing trades.
The maximum drawdown for the American Century Ultra Fund Class R6 was 35.03%, occurring on Oct 14, 2022. Recovery took 322 trading sessions.
The current American Century Ultra Fund Class R6 drawdown is 4.34%.
Related event | Drawdown | Fall | Recovery | Underwater |
|---|---|---|---|---|
Bear market2022 | -35.03%Oct 2022 | 10mo 29d | 1y 3mo | 2y 2moNov 2021 - Jan 2024 |
COVID crash2020 | -31.91%Mar 2020 | 1mo 2d | 2mo 14d | 3mo 16dFeb 2020 - Jun 2020 |
2025 selloff2025 | -24.78%Apr 2025 | 3mo 27d | 3mo 18d | 7mo 15dDec 2024 - Jul 2025 |
Rate-hike selloffLate 2018 | -22.94%Dec 2018 | 2mo 27d | 3mo 17d | 6mo 14dSep 2018 - Apr 2019 |
2016 correction2016 | -17.46%Feb 2016 | 6mo 25d | 6mo 6d | 1y 26dJul 2015 - Aug 2016 |
Drawdown Indicators
| AULDX | Benchmark | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -35.03% | -56.78% | +21.75% |
Max Drawdown (1Y)Largest decline over 1 year | -15.60% | -9.10% | -6.50% |
Max Drawdown (3Y)Largest decline over 3 years | -24.78% | -18.90% | -5.88% |
Max Drawdown (5Y)Largest decline over 5 years | -35.03% | -25.43% | -9.60% |
Max Drawdown (10Y)Largest decline over 10 years | -35.03% | -33.92% | -1.11% |
Current DrawdownCurrent decline from peak | -4.34% | -1.80% | -2.54% |
Average DrawdownAverage peak-to-trough decline | -6.18% | -10.71% | +4.53% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.55% | 2.03% | +2.52% |
Volatility
Volatility Chart
The chart below shows the rolling one-month volatility.
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