Ultra Fund (TWCUX) is an MF managed by American Century. Its largest position is NVIDIA CORP (NVDA), representing 15.47% of fund assets.
Ultra Fund Portfolio Holdings
Source: SEC Form N-PORT institutional portfolio disclosures
- Ticker:
- TWCUX
- Type:
- MF
- Manager:
- American Century
- Total Assets:
- —
- Report Date:
- Apr 30, 2026
- Filing Date:
- Jun 26, 2026
| Holding | Weight | Market Value | Shares |
|---|---|---|---|
|
-
NVIDIA CORP
|
15.47% | $4,114,933,830.00 | 20,619,000 |
|
-
Apple Inc.
|
8.22% | $2,184,992,690.40 | 8,052,304 |
|
-
AMAZON COM INC
|
7.68% | $2,041,227,060.00 | 7,701,000 |
|
-
Alphabet Inc.
|
6.68% | $1,775,257,484.00 | 4,613,455 |
|
-
MICROSOFT CORP
|
5.99% | $1,594,012,020.00 | 3,909,000 |
|
-
Alphabet Inc.
|
5.76% | $1,531,197,460.00 | 4,009,000 |
|
-
Broadcom Inc.
|
4.37% | $1,162,125,120.00 | 2,784,000 |
|
-
Tesla, Inc.
|
4.01% | $1,065,510,960.00 | 2,792,000 |
|
-
Mastercard Inc
|
3.28% | $871,971,245.64 | 1,733,817 |
|
-
Meta Platforms, Inc.
|
3.01% | $800,378,280.00 | 1,308,000 |
|
-
NETFLIX INC
|
2.47% | $656,206,100.00 | 7,010,000 |
|
-
COSTCO WHOLESALE CORP /NEW
|
2.06% | $546,831,670.00 | 539,000 |
|
-
APPLIED MATERIALS INC /DE
|
1.85% | $491,534,540.00 | 1,246,000 |
|
-
Vertiv Holdings Co
|
1.68% | $447,403,380.00 | 1,362,000 |
|
-
ELI LILLY & Co
|
1.63% | $434,589,000.00 | 465,000 |
|
-
ANALOG DEVICES INC
|
1.54% | $410,305,200.00 | 1,020,000 |
|
-
INTUITIVE SURGICAL INC
|
1.50% | $399,942,445.41 | 873,981 |
|
-
AMPHENOL CORP /DE/
|
1.38% | $367,438,650.00 | 2,495,000 |
|
-
ASML HOLDING NV
|
1.23% | $328,138,852.36 | 227,000 |
|
-
Cloudflare, Inc.
|
1.23% | $327,952,000.00 | 1,600,000 |
|
-
Interactive Brokers Group, Inc.
|
1.12% | $297,330,000.00 | 3,740,000 |
|
-
Palantir Technologies Inc.
|
0.91% | $240,799,410.00 | 1,731,000 |
|
-
ORACLE CORP
|
0.90% | $240,632,490.00 | 1,491,000 |
|
-
ALNYLAM PHARMACEUTICALS, INC.
|
0.87% | $231,189,030.00 | 747,000 |
|
-
Howmet Aerospace Inc.
|
0.85% | $225,541,120.00 | 928,000 |
|
-
Datadog, Inc.
|
0.82% | $217,716,930.00 | 1,647,000 |
|
-
SYNOPSYS INC
|
0.78% | $206,552,800.00 | 428,000 |
|
-
WESTINGHOUSE AIR BRAKE TECHNOLOGIES CORP
|
0.77% | $203,497,060.00 | 754,000 |
|
-
ECOLAB INC.
|
0.71% | $189,456,200.00 | 727,000 |
|
-
Planet Labs PBC
|
0.68% | $180,191,780.00 | 4,874,000 |
|
-
Zscaler, Inc.
|
0.60% | $159,429,600.00 | 1,220,000 |
|
-
Ascendis Pharma A/S
|
0.57% | $152,308,320.00 | 664,000 |
|
-
ADVANCED DRAINAGE SYSTEMS, INC.
|
0.55% | $145,817,250.00 | 977,000 |
|
-
IDEXX LABORATORIES INC /DE
|
0.54% | $144,125,600.00 | 257,000 |
|
-
ACUITY INC. (DE)
|
0.54% | $142,566,840.00 | 492,000 |
|
-
CIENA CORP
|
0.52% | $138,753,540.00 | 263,000 |
|
-
Johnson Controls International plc
|
0.52% | $137,268,200.00 | 940,000 |
|
-
FAIR ISAAC CORP
|
0.51% | $136,325,000.00 | 133,000 |
|
-
Snowflake Inc.
|
0.50% | $133,331,190.00 | 977,000 |
|
-
REGENERON PHARMACEUTICALS, INC.
|
0.47% | $124,442,560.00 | 176,000 |
|
-
VERTEX PHARMACEUTICALS INC / MA
|
0.44% | $117,529,500.00 | 275,000 |
|
-
Viking Holdings Ltd
|
0.35% | $92,558,300.00 | 1,130,000 |
|
-
DONALDSON Co INC
|
0.34% | $90,550,590.00 | 1,027,000 |
|
-
CHIPOTLE MEXICAN GRILL INC
|
0.28% | $74,913,960.00 | 2,204,000 |
|
-
Wingstop Inc.
|
0.28% | $73,170,760.00 | 446,000 |
|
-
Tradeweb Markets Inc.
|
0.27% | $72,366,750.00 | 639,000 |
|
-
EOG RESOURCES INC
|
0.26% | $69,722,720.00 | 496,000 |
|
-
Booking Holdings Inc.
|
0.25% | $67,344,000.00 | 400,000 |
|
-
MSCI Inc.
|
0.25% | $66,829,330.00 | 113,000 |
|
-
NORDSON CORP
|
0.25% | $65,766,600.00 | 228,000 |
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