Ultra Fund
American Century Mutual Funds, Inc. · 9 share classes
Fund classification
Classified from what the fund holds · as of 2026 Q2
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
Fund profile
As filed in the prospectus · 2026 Q1
The fund seeks long-term capital growth.
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.
| Share class | Gross | Net |
|---|---|---|
| TWCUX | 0.89% | 0.87% |
| TWUAX | 1.14% | 1.12% |
| TWUIX | 0.69% | 0.67% |
| TWCCX | 1.89% | 1.87% |
| AULRX | 1.39% | 1.37% |
| AULDX | 0.54% | 0.52% |
| AULGX | 0.69% | 0.67% |
| AULYX | 0.54% | 0.52% |
| AULNX | 0.54% | 0.00% |
Net is what a holder pays after the adviser's contractual waiver; gross is before it. A waiver can expire.
Portfolio turnover 15.00% · as of 2026 Q1
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Stocks | 99.97% |
| Cash & short-term | 0.12% |
Sector allocation
The same holdings as Allocation above, grouped by market sector instead of asset type · as of 2026 Q2
| Information Technology | 46.3% |
| Communication Services | 17.9% |
| Consumer Discretionary | 12.6% |
| Industrials | 6.6% |
| 9 smaller | 16.6% |
Government, Securitized and Cash are non-corporate buckets; International is foreign holdings we don’t sector-classify, and Other is the residual (held funds, unresolved names).
Portfolio growth profile
How much of the fund’s stock holdings are in fast-growing companies · as of 2026 Q2
Share of the fund’s equity (by value) in companies whose trailing five-year revenue — or net-income — growth ranks in the top 25% of U.S. public companies. Foreign and newly-listed holdings are excluded, so the figure covers only part of the book. From SEC filings — not investment advice. How we measure this.
Latest quarter
What changed since the fund's previous filing
New: Ascendis Pharma A/S, Rolls-Royce Holdings PLC, TSCO, State Street Bank & Trust Co, State Street Navigator Securities Lending Trust - State Street Navigator Securities Lending Government Money Market Portfolio
Largest exited: Ascendis Pharma A/S, CRM, CPRT, State Street Bank & Trust Co, MORGAN STANLEY CAPITAL SERVICES INC ×2
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
| Share class | 1-year | 3-year | 5-year | Vol | Worst fall |
|---|---|---|---|---|---|
| +28.93% | +83.01% | +65.49% | 17.85% | -12.92% | |
| +28.60% | +81.62% | +63.42% | 17.84% | -12.96% | |
| +29.18% | +84.09% | +67.13% | 17.85% | -12.90% | |
| +27.63% | +77.57% | +57.40% | 17.82% | -13.05% | |
| +28.28% | +80.26% | +61.39% | 17.83% | -12.99% | |
| +29.37% | +84.93% | +68.39% | 17.84% | -12.88% | |
| +29.18% | +84.10% | +67.13% | 17.84% | -12.89% | |
| +29.37% | +84.93% | +68.39% | 17.84% | -12.88% | |
| +30.06% | +87.97% | +73.17% | 17.86% | -12.80% |
These classes hold the same portfolio, so the 15.77pp spread over 5 years is the cost difference between them — roughly 3.15pp a year — not a difference in what they own.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Reported price | Value | Shares |
|---|---|---|---|---|---|
| NVDA | NVIDIA CorpNVDA | 15.47% | $199.57 | $4.11B | 20.6M |
| AAPL | Apple IncAAPL | 8.22% | $271.35 | $2.18B | 8.1M |
| AMZN | Amazon.com IncAMZN | 7.68% | $265.06 | $2.04B | 7.7M |
| GOOGL | Alphabet IncGOOGL | 6.68% | $384.80 | $1.78B | 4.6M |
| MSFT | Microsoft CorpMSFT | 5.99% | $407.78 | $1.59B | 3.9M |
| GOOG | Alphabet IncGOOG | 5.76% | $381.94 | $1.53B | 4.0M |
| AVGO | Broadcom IncAVGO | 4.37% | $417.43 | $1.16B | 2.8M |
| TSLA | Tesla IncTSLA | 4.01% | $381.63 | $1.07B | 2.8M |
| MA | Mastercard IncMA | 3.28% | $502.92 | $871.97M | 1.7M |
| META | Meta Platforms IncMETA | 3.01% | $611.91 | $800.38M | 1.3M |
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.
Top 10 positions are 64.46% of net assets, top 25 85.69%, across 65 issuers.
See more of this fund's book
More positions with filed share counts, and the quarter-over-quarter change list rather than the largest few — free with an account, no card required.
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