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American Century Ultra Fund (TWCUX)
Performance
Return for Risk
Dividends
Drawdowns
Volatility

Fund Info

ISIN
US0250838820
CUSIP
025083882
Inception Date
Nov 2, 1981
Min. Investment
$2,500
Distribution Policy
Distributing
Asset Class
Equity
Asset Class Size
Large-Cap
Asset Class Style
Growth

Share Price Chart


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Performance

Performance Chart

The chart shows the growth of an initial investment of $10,000 in American Century Ultra Fund, comparing it to the performance of the S&P 500 index or another benchmark. All prices have been adjusted for splits and dividends.


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S&P 500 Index

Returns By Period

American Century Ultra Fund (TWCUX) has returned -12.28% so far this year and 11.48% over the past 12 months. Looking at the last ten years, TWCUX has achieved an annualized return of 15.69%, outperforming the S&P 500 Index benchmark, which averaged 12.16% per year.


American Century Ultra Fund

1D
-0.65%
1M
-8.79%
YTD
-12.28%
6M
-10.88%
1Y
11.48%
3Y*
16.46%
5Y*
8.90%
10Y*
15.69%

Benchmark (S&P 500 Index)

1D
2.91%
1M
-5.09%
YTD
-4.63%
6M
-2.39%
1Y
16.33%
3Y*
16.69%
5Y*
10.18%
10Y*
12.16%
*Multi-year figures are annualized to reflect compound growth (CAGR)

Monthly Returns

Based on dividend-adjusted daily data since Oct 30, 1981, TWCUX's average daily return is +0.06%, while the average monthly return is +1.16%. At this rate, your investment would double in approximately 5.0 years.

Historically, 60% of months were positive and 40% were negative. The best month was Jan 1987 with a return of +23.4%, while the worst month was Oct 1987 at -32.5%. The longest winning streak lasted 13 consecutive months, and the longest losing streak was 5 months.

On a daily basis, TWCUX closed higher 53% of trading days. The best single day was Dec 18, 1987 with a return of +59.8%, while the worst single day was Dec 21, 1987 at -34.5%.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026-0.53%-3.31%-8.79%-12.28%
20251.79%-4.76%-8.57%1.11%8.51%5.53%2.05%1.29%4.53%4.95%-1.93%-1.28%12.66%
20242.05%6.82%1.72%-3.69%6.35%6.30%-2.62%1.92%2.08%-0.67%6.47%0.14%29.54%
20239.66%-1.72%7.80%0.89%5.52%6.51%2.83%-1.78%-5.64%-2.48%11.53%4.97%43.36%
2022-8.87%-4.50%4.03%-13.08%-3.42%-9.12%14.38%-5.77%-9.38%5.75%4.38%-9.20%-32.38%
2021-1.63%0.96%0.74%7.82%-2.42%6.83%3.90%3.49%-5.61%7.72%-0.99%1.42%23.47%

Benchmark Metrics

American Century Ultra Fund has an annualized alpha of 3.20%, beta of 1.08, and R² of 0.64 versus S&P 500 Index. Calculated based on daily prices since November 02, 1981.

  • This fund captured 131.87% of S&P 500 Index gains and 116.65% of its losses — amplifying both gains and losses, but participating more in upside than downside.
  • This fund generated an annualized alpha of 3.20% versus S&P 500 Index — delivering returns beyond what market exposure alone would predict.
  • With beta of 1.08 and R² of 0.64, 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
3.20%
Beta
1.08
0.64
Upside Capture
131.87%
Downside Capture
116.65%

Expense Ratio

TWCUX has a high expense ratio of 0.93%, indicating above-average management fees.


Return for Risk

Risk / Return Rank

TWCUX ranks 18 for risk / return — in the bottom 18% 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.


TWCUX Risk / Return Rank: 1818
Overall Rank
TWCUX Sharpe Ratio Rank: 1717
Sharpe Ratio Rank
TWCUX Sortino Ratio Rank: 2020
Sortino Ratio Rank
TWCUX Omega Ratio Rank: 1919
Omega Ratio Rank
TWCUX Calmar Ratio Rank: 1717
Calmar Ratio Rank
TWCUX Martin Ratio Rank: 1818
Martin Ratio Rank
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.

Return / Risk — by metrics

The table below present risk-adjusted performance metrics for American Century Ultra Fund (TWCUX) and compare them to a chosen benchmark (S&P 500 Index).


TWCUXBenchmarkDifference

Sharpe ratio

Return per unit of total volatility

0.50

0.90

-0.40

Sortino ratio

Return per unit of downside risk

0.88

1.39

-0.50

Omega ratio

Gain probability vs. loss probability

1.12

1.21

-0.09

Calmar ratio

Return relative to maximum drawdown

0.53

1.40

-0.87

Martin ratio

Return relative to average drawdown

1.87

6.61

-4.73

Explore TWCUX risk-adjusted metrics in detail

Dive deeper into individual metrics with historical trends, benchmark comparisons, and performance across different time periods.

Dividends

Dividend History

American Century Ultra Fund provided a 13.19% dividend yield over the last twelve months, with an annual payout of $10.89 per share.


2.00%4.00%6.00%8.00%10.00%12.00%$0.00$2.00$4.00$6.00$8.00$10.0020152016201720182019202020212022202320242025
Dividends
Dividend Yield
PeriodTTM20252024202320222021202020192018201720162015
Dividend$10.89$10.89$3.34$4.54$4.09$5.94$2.12$2.23$3.33$2.54$1.60$1.82

Dividend yield

13.19%11.57%3.58%6.09%7.42%6.78%2.80%4.27%8.24%5.85%4.58%5.21%

Monthly Dividends

The table displays the monthly dividend distributions for American Century Ultra Fund. The dividends shown in the table have been adjusted to account for any splits that may have occurred.


JanFebMarAprMayJunJulAugSepOctNovDecTotal
2026$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. 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 was 62.11%, occurring on Mar 9, 2009. Recovery took 1108 trading sessions.

The current American Century Ultra Fund drawdown is 15.72%.


Depth

Start

To Bottom

Bottom

To Recover

End

Total

-62.11%Mar 28, 20002249Mar 9, 20091108Aug 1, 20133357
-46.51%Oct 6, 198715Oct 26, 198738Dec 18, 198753
-44.18%Jun 17, 1983279Jul 24, 1984440Apr 21, 1986719
-39.05%Dec 21, 198721Jan 20, 1988336May 18, 1989357
-35.23%Nov 19, 2021227Oct 14, 2022328Feb 6, 2024555

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


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