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TWCUX

Ultra Fund

Actively managedEquityOpen-end fund
American Century Mutual Funds, Inc.: TWCUX · TWUAX · TWUIX · TWCCX · AULRX · AULDX · AULGX · AULYX · AULNXHoldings as of Apr 30, 2026Filed Jun 26, 2026

Actively managed U.S. stock fund

As of its 2026 Q2 report, Ultra Fund held 66 positions with $26.59B in net assets. Its ten largest holdings made up 64.5% of the fund. The TWCUX share class costs 0.87% a year. Over the 12 months to May 2026, TWCUX returned 26.5%, with dividends reinvested. In 2026 Q3 it added 7 new positions and exited 8.

2026 Q2 holdings and allocationChanges are against the previous quarter, 2026 Q2Headline fees and returns use the TWCUX share class
Expense ratio · TWCUX
0.87%
$87 a year for every $10,000 invested
0% – 1.87% across the 9 classes
$26.59B
The whole fund, all share classes
66 holdings
64.5%in the top 10
Weight held in the ten largest holdings
Top 25 hold 85.7%
Return, 1 year · TWCUX
+26.5%
With dividends, to May 2026
3 yr total +84.6% · 5 yr total +80.5%
What this fund is
Objective, as filed

The fund seeks long-term capital growth.

Strategy, summarised

The fund invests in stocks of larger U.S. companies selected for accelerating earnings, revenue, or cash flow growth and relative price strength compared to peers. The portfolio managers employ analytical techniques to identify signs of business improvement and favor companies whose growth rates are strengthening. The fund may also invest in foreign securities meeting the same criteria and may write covered calls on portions of its holdings.

What you own

per cent of the fund
CompanyWeightValue
15.47%
$4.11B
8.22%
$2.18B
7.68%
$2.04B
6.68%
$1.78B
5.99%
$1.59B
5.76%
$1.53B
4.37%
$1.16B
4.01%
$1.07B
3.28%
$871.97M
3.01%
$800.38M
Showing 1–10 of 66 · the top 10 are 64.46% of the fund, the top 25 are 85.69%

Reported price is the fund's own reported value divided by its own reported shares at 2026-04-30 — not a live quote, and not what the fund paid.

All 66 holdings, with the share counts as filed, open with a free account.

What the fund is made of

Percentages are of fund net assets. Rounding, liabilities and short positions can make totals differ from 100%.

100.08%
of net assets
Stocks99.97%
Cash & short-term0.12%

By sector

Information Technology
49.9%
Communication Services
16.2%
Consumer Discretionary
10.0%
Industrials
6.9%
8 other sectors
16.9%

How it has done

Total return, dividends reinvested · to May 2026

TWCUX share class · total returns with dividends reinvested

1 year
+26.45%
3 years
+84.59%
Cumulative, not per year
5 years
+80.49%
Cumulative, not per year
Largest decline in 3 years
-12.92%
From a previous high to a later low
Cumulative return, last three years· Aug 2023 – May 2026

Volatility over the last 12 months: 17.16%. Past returns are a record, not a forecast.

Jun 2026 and Jul 2026 have been filed since the trailing figures were struck, so they are not in the table above or the curve — every figure here shares one cut-off, which is what makes them comparable with other funds.

The 9 share classes hold the same portfolio

Share classExpense ratio1 year3 years5 yearsWorst fall
0.87%+26.45%+84.59%+80.49%-12.92%
1.12%+26.14%+83.22%+78.25%-12.96%
0.67%+26.70%+85.69%+82.31%-12.90%
1.87%+25.22%+79.16%+71.70%-13.05%
1.37%+25.83%+81.86%+76.04%-12.99%
0.52%+26.89%+86.55%+83.68%-12.88%
0.67%+26.71%+85.69%+82.31%-12.89%
0.52%+26.90%+86.54%+83.68%-12.88%
0.00%+27.55%+89.59%+88.89%-12.80%

These classes hold the same portfolio, so the 17.18pp spread over 5 years is the cost difference between them — roughly 3.44pp a year — not a difference in what they own.

Fees & fund details

Ultra Fund is an actively managed U.S. equity fund. 34% of TWCUX’s stock holdings are in companies whose revenue grew in the top quartile of U.S. companies over the last five fiscal years (covering 98% of the fund’s equity).

Asset class
Equity
Region
United States
Management
Actively managed
Fund type
Open-end fund
Expense ratio, by class
0.00% – 1.87%· TWCUX 0.87%
Portfolio turnover
15.00% a year · as of 2026 Q1

Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.

Turnover is how much of the portfolio was replaced in a year.

Classified from what the fund holds, not from its name · 2026 Q2. The summary is a paraphrase of the prospectus; the objective is verbatim.

What changed this quarter

2026 Q3 vs 2026 Q2

Positions that entered or left the fund since its previous filing. Positions that were only resized are not listed.

7 new

Samsung Electronics Co Ltd
State Street Bank & Trust Co
Space Exploration Technologies CorpSPCX
Connected research

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