American Century Investments Prime Money Market Fund Class A

ACAXX

PrimeRetail
7-day Yield
#328
3.05%
as of 7/31/2026
Net assets
$32.2M
Expense ratio
0.82%
WAM
55
WAL
91
Minimum
$2.5K
Holding details
18% Treasuries
32% Variable Rate Demand Notes
4% Municipal Bonds
2% CDs
11% Financial CP
30% Asset-Backed CP
3% Non-Financial CP
2% Other Instruments
as of 7/31/2026

Performance

Portfolio Securities

SecurityYield%
Taxable Municipal Funding Trust 3.970000%3.97%2.16%
Deutsche Bank Spears/Lifers Trust 4.900000%4.18%2.09%
Invesco Senior Income Trust 3.810000%3.80%1.94%
Nuveen Variable Rate Preferred & Income Fund 4.940000%3.80%1.65%
Jefferson Monrovia South LLC3.72%1.53%
Taxable Municipal Funding Trust 4.650000%3.97%1.17%
Jefferson Exchange at Riverside LLC 4.950000%3.72%1.09%
Mizuho Floater/Residual Trust 5.060000%3.86%0.94%
SRM Culver City LP 4.950000%3.72%0.90%
Allen C Stonecipher Life Insurance Trust 4.950000%3.72%0.89%
412 Madison LLC 4.950000%3.72%0.82%
Nuveen Preferred & Income Opportunities Fund 5.000000%3.78%0.78%
City & County of San Francisco, CA 5.000000%3.85%0.70%
Nuveen Credit Strategies Income Fund 5.000000%3.78%0.62%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.81%0.62%
New York City Municipal Water Finance Authority 5.000000%3.85%0.62%
Uptown Newport Building Owner LP 5.000000%3.77%0.62%
Mizuho Floater/Residual Trust 5.260000%4.15%0.60%
Anton Santa Cruz LLC 4.950000%3.72%0.59%
Shil Park Irrevocable Life Insurance Trust (The) 4.950000%3.72%0.58%
Tender Option Bond Trust Receipts/Certificates 3.950000%3.95%0.55%
Synergy Colgan Creek LLC 4.950000%3.72%0.54%
Deutsche Bank Spears/Lifers Trust 5.400000%4.18%0.54%
Taxable Municipal Funding Trust 5.150000%3.97%0.53%
Foothill Garden NV Investors LLC 4.950000%3.72%0.50%
Bellevue 10 Apartments LLC 4.990000%3.76%0.48%
Gold River 659 LLC 4.950000%3.72%0.47%
SRMHayward LLC 4.950000%3.72%0.46%
Tender Option Bond Trust Receipts/Certificates 4.600000%3.90%0.44%
Trinity Mills Multifamily I Owner LLC 4.400000%3.72%0.43%
Barbour Issuing Trust 4.950000%3.72%0.43%
Capital Source 31 LLC 4.200000%4.40%0.38%
500 Columbia Place LLC 4.950000%3.72%0.38%
Nicholas David Nurse 2020 Irrevocable Trust (The) 4.950000%3.72%0.38%
General Secretariat of the Organization of American States 4.910000%3.77%0.35%
KDF Glenview LP 4.950000%3.72%0.31%
Cypress Bend Real Estate Development Co. LLC 4.950000%3.72%0.29%
Mizuho Floater/Residual Trust 4.950000%3.75%0.29%
Campos Charitable Trust (The) 4.950000%3.72%0.24%
New York State Housing Finance Agency 0.350000%3.66%0.24%
Steve Welch Family Insurance Trust 4.950000%3.72%0.24%
Stobro Co. LP 4.500000%3.82%0.23%
Labcon North America 5.000000%4.10%0.23%
JoEllyn G Slott 2023 Family Trust 4.950000%3.72%0.23%
Sundowner Issuing Trust 4.950000%3.72%0.23%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.81%0.22%
Richard & Allison Leigh Insurance Trust 4.850000%3.77%0.22%
AHI Fund II LLC 4.900000%3.87%0.22%
Tender Option Bond Trust Receipts/Certificates 4.980000%3.83%0.19%
Supreme Satori Issuing Trust 4.950000%3.72%0.19%
Champion Insurance Trust 4.950000%3.72%0.17%
Krawitz Family Insurance Trust (The) 4.950000%3.72%0.16%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.81%0.15%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.81%0.14%
World Changers Trust 4.450000%3.72%0.14%
New York City Housing Development Corp. 5.400000%3.72%0.10%
Leo@cartersville LLC 4.400000%3.72%0.08%
Labcon North America 5.000000%4.10%0.07%
New York State Dormitory Authority 5.000000%3.85%0.03%
New York State Dormitory Authority 5.000000%3.85%0.02%
Hqla Funding LLC 4.070000%4.11%2.13%
Verto Capital Compartment B 3.690000%3.79%1.94%
Verto Capital I-A LLC 3.700000%3.75%1.94%
Verto Capital I Compartment D 3.700000%3.79%1.94%
Hqla Funding LLC 4.100000%4.10%1.94%
Ionic Funding LLC3.87%1.93%
Verto Capital Compartment E 3.710000%3.80%1.56%
Compo Funding Co. LLC3.75%1.36%
Ionic Funding LLC 3.920000%4.12%1.36%
Endeavour Funding Co. LLC 3.700000%3.82%1.16%
Ionic Funding LLC3.88%1.06%
Verto Capital I Compartment C3.72%0.97%
Hqla Funding LLC3.88%0.97%
Washington Morgan Capital Co. LLC 3.970000%4.03%0.97%
Fairway Finance Co. LLC 4.000000%3.92%0.97%
Thunder Bay Funding LLC 3.910000%3.92%0.97%
Washington Morgan Capital Co. LLC 4.020000%4.01%0.97%
Concord Minutemen Capital Co. LLC 4.000000%3.99%0.97%
Chariot Funding LLC 3.990000%3.98%0.97%
Clipper Funding Co. LLC3.92%0.96%
Hqla Funding LLC4.05%0.96%
Concord Minutemen Capital Co. LLC 3.930000%3.87%0.77%
Clipper Funding Co. LLC4.08%0.54%
Ionic Funding LLC3.72%0.44%
Hqla Funding LLC3.71%0.22%
U.S. Treasury Note 4.500000%4.05%4.47%
U.S. Treasury Note 3.750000%4.07%2.90%
U.S. Treasury Note 4.625000%4.11%2.12%
U.S. Treasury Note 4.348400%3.85%1.99%
U.S. Treasury Note 3.750000%3.87%0.97%
U.S. Treasury Bill3.75%0.97%
U.S. Treasury Note 3.750000%4.13%0.97%
U.S. Treasury Bill3.89%0.95%
U.S. Treasury Bill3.77%0.77%
U.S. Treasury Note 0.750000%3.91%0.58%
U.S. Treasury Note3.99%0.58%
U.S. Treasury Bill3.74%0.41%
Royal Bank of Canada 3.880000%3.92%1.94%
Podium Funding Trust 4.020000%4.05%1.94%
Challenger Funding Co. LLC4.10%1.93%
Collateralized Commercial Paper V Co. LLC 3.990000%3.93%0.97%
Toronto-Dominion Bank (The) 3.980000%3.89%0.97%
Collateralized Commercial Paper V Co. LLC 3.940000%4.03%0.97%
Bank of Montreal 3.950000%3.91%0.78%
Challenger Funding Co. LLC 3.970000%3.89%0.78%
Collateralized Commercial Paper V Co. LLC 4.060000%4.19%0.58%
City of New York, NY 4.124000%4.12%1.36%
Tender Option Bond Trust Receipts/Certificates 3.910000%3.95%0.78%
Tender Option Bond Trust Receipts/Certificates 3.910000%3.95%0.76%
County of Santa Clara, CA 5.000000%5.00%0.39%
State of Georgia 4.964000%4.00%0.22%
Pflugerville Independent School District 5.000000%4.32%0.20%
Toyota Credit de Puerto Rico Corp.3.68%0.97%
Toyota Credit de Puerto Rico Corp.3.69%0.97%
Toyota Credit de Puerto Rico Corp.3.73%0.77%
Memorial Health System4.01%0.57%
Toronto-Dominion Bank (The) 3.950000%3.97%0.78%
Bank of Montreal 3.940000%3.98%0.68%
Banco Santander SA 3.960000%3.91%0.08%
Banco Santander SA 3.870000%3.75%0.04%
CIG DS1 LLC 5.000000%5.00%0.97%
Toronto-Dominion Bank (The) 2.800000%4.24%0.58%