Ultra Fund is a registered fund series of American Century Mutual Funds, Inc. (series S000006195). Net assets $26.6B as of 2026-04-30.
Showing 15 of 66 holdings by value.
| Holding | Ticker | Value | % of fund |
|---|---|---|---|
| NVIDIA Corp | — | $4.1B | 1547.35% |
| Apple Inc | — | $2.2B | 821.63% |
| Amazon.com Inc | — | $2.0B | 767.57% |
| Alphabet Inc | — | $1.8B | 667.56% |
| Microsoft Corp | — | $1.6B | 599.40% |
| Alphabet Inc | — | $1.5B | 575.78% |
| Broadcom Inc | — | $1.2B | 437.00% |
| Tesla Inc | — | $1.1B | 400.67% |
| Mastercard Inc | — | $872.0M | 327.89% |
| Meta Platforms Inc | — | $800.4M | 300.97% |
| Netflix Inc | — | $656.2M | 246.76% |
| Costco Wholesale Corp | — | $546.8M | 205.63% |
| Applied Materials Inc | — | $491.5M | 184.83% |
| Vertiv Holdings Co | — | $447.4M | 168.24% |
| Eli Lilly & Co | — | $434.6M | 163.42% |
| Report date | Net assets |
|---|---|
| 2026-04-30 | $26.6B |
| 2026-01-31 | $26.3B |
| 2025-10-31 | $28.2B |
| 2025-07-31 | $26.4B |
| 2025-04-30 | $23.0B |
| 2025-01-31 | $26.7B |
| 2024-10-31 | $25.1B |
| 2024-07-31 | $24.6B |