PortfoliosLab logoPortfoliosLab logo
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
Assets Under Management
$27B

Share Price Chart


Loading charts...

Compare stocks, funds, or ETFs

Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.


Performance

TWCUX Performance Chart

American Century Ultra Fund (TWCUX) is up 5.3% since the beginning of the year. TWCUX is currently trading at $99 per share. Investors who bought $1,000 worth of TWCUX shares 5 years ago would now be looking at an investment worth $1,693.


Loading charts...

S&P 500 Index

Returns By Period

American Century Ultra Fund (TWCUX) has returned 5.30% so far this year and 21.44% over the past 12 months. Looking at the last ten years, TWCUX has achieved an annualized return of 17.92%, outperforming the S&P 500 Index benchmark, which averaged 13.88% per year.


American Century Ultra Fund

1D
1.52%
1M
-1.76%
YTD
5.30%
6M
4.64%
1Y
21.44%
3Y*
19.22%
5Y*
11.11%
10Y*
17.92%

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

TWCUX Monthly Returns History

Based on dividend-adjusted daily data since Oct 30, 1981, TWCUX's average daily return is +0.06%, while the average monthly return is +1.18%. At this rate, an investment would double in approximately 4.9 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%-5.16%12.49%6.43%-3.57%5.30%
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 3.13%, beta of 1.08, and R2 of 0.64 versus S&P 500 Index. Calculated based on daily prices since October 30, 1981.

  • This fund captured 131.49% of S&P 500 Index gains and 116.88% of its losses - amplifying both gains and losses, but participating more in upside than downside.
  • This fund generated an annualized alpha of 3.13% 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
3.13%
Beta
1.08
0.64
Upside Capture
131.49%
Downside Capture
116.88%

Expense Ratio

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


Return for Risk

Risk / Return Rank

TWCUX 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.


TWCUX Risk / Return Rank: 1919
Overall Rank
TWCUX Sharpe Ratio Rank: 2121
Sharpe Ratio Rank
TWCUX Sortino Ratio Rank: 1919
Sortino Ratio Rank
TWCUX Omega Ratio Rank: 1919
Omega Ratio Rank
TWCUX Calmar Ratio Rank: 1616
Calmar Ratio Rank
TWCUX Martin Ratio Rank: 1919
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 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.


TWCUXBenchmarkDifference
Sharpe ratioReturn per unit of total volatility

-0.82

Sortino ratioReturn per unit of downside risk

-1.06

Omega ratioGain probability vs. loss probability

1.21

1.37

-0.15

Calmar ratioReturn relative to maximum drawdown

1.32

2.78

-1.46

Martin ratioReturn relative to average drawdown

4.51

12.44

-7.93

Dividends

Dividend History

American Century Ultra Fund provided a 10.99% 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

10.99%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$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.


Loading charts...

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 4.36%.


Related event

Drawdown

Fall

Recovery

Underwater

Financial crisis2007–2009
-62.11%Mar 2009
8y 11mo4y 4mo
13y 4moMar 2000 - Aug 2013
Black Monday1987
-46.51%Oct 1987
20d1mo 23d
2mo 13dOct 1987 - Dec 1987
1984 bear market1984
-44.18%Jul 1984
1y 1mo1y 9mo
2y 10moJun 1983 - Apr 1986
1988 bear market1988
-39.05%Jan 1988
1mo1y 3mo
1y 4moDec 1987 - May 1989
Bear market2022
-35.23%Oct 2022
10mo 29d1y 3mo
2y 2moNov 2021 - Feb 2024

Drawdown Indicators


TWCUXBenchmarkDifference

Max Drawdown

Largest peak-to-trough decline

-62.11%

-56.78%

-5.33%

Max Drawdown (1Y)

Largest decline over 1 year

-15.72%

-9.10%

-6.62%

Max Drawdown (3Y)

Largest decline over 3 years

-24.86%

-18.90%

-5.96%

Max Drawdown (5Y)

Largest decline over 5 years

-35.23%

-25.43%

-9.80%

Max Drawdown (10Y)

Largest decline over 10 years

-35.23%

-33.92%

-1.31%

Current Drawdown

Current decline from peak

-4.36%

-1.80%

-2.56%

Average Drawdown

Average peak-to-trough decline

-16.80%

-10.71%

-6.09%

Ulcer Index

Depth and duration of drawdowns from previous peaks

4.60%

2.03%

+2.57%

Volatility

Volatility Chart

The chart below shows the rolling one-month volatility.


Loading charts...

Portfolio Analyzer

Build a portfolio with TWCUX

Add American Century Ultra Fund to a portfolio and analyze allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.

Open Portfolio Analyzer with TWCUX