American Century Investments Prime Money Market Fund Class A

ACAXX

PrimeRetail
7-day Yield
#491
3.02%
as of 5/31/2026
Net assets
$33M
Expense ratio
0.82%
WAM
59
WAL
95
Minimum
$2.5K
Holding details
12% Treasuries
34% Variable Rate Demand Notes
3% Municipal Bonds
1% CDs
9% Financial CP
36% Asset-Backed CP
3% Non-Financial CP
2% Other Instruments
as of 5/31/2026

Performance

Portfolio Securities

SecurityYield%
Fastnet Funding Co. LLC3.68%3.28%
Verto Capital Compartment B 3.700000%3.71%2.51%
Compo Funding Co. LLC3.70%1.93%
Verto Capital I-A LLC 3.700000%3.82%1.93%
Hqla Funding LLC 4.030000%4.00%1.93%
Hqla Funding LLC 4.020000%4.06%1.93%
Verto Capital I Compartment D 3.700000%3.70%1.93%
Ionic Funding LLC3.90%1.91%
Ionic Funding LLC3.73%1.54%
Ionic Funding LLC 3.920000%3.92%1.35%
Ionic Funding LLC3.73%1.16%
Endeavour Funding Co. LLC 3.700000%3.77%1.16%
Ionic Funding LLC3.90%1.05%
Regatta Funding Co. LLC 4.440000%3.91%0.97%
Concord Minutemen Capital Co. LLC 3.950000%3.78%0.97%
Verto Capital Compartment C 3.840000%3.79%0.97%
Verto Capital Compartment B 3.700000%3.82%0.97%
Chariot Funding LLC 3.980000%3.89%0.97%
Washington Morgan Capital Co. LLC 3.970000%3.89%0.97%
Fairway Finance Co. LLC 4.000000%3.91%0.97%
Thunder Bay Funding LLC 3.910000%3.94%0.97%
Lion Bay Funding LLC 3.670000%3.72%0.77%
Lion Bay Funding LLC 3.670000%3.72%0.77%
Concord Minutemen Capital Co. LLC 3.930000%3.96%0.76%
Regatta Funding Co. LLC3.68%0.58%
Ionic Funding LLC3.86%0.43%
Ionic Funding LLC3.73%0.39%
Verto Capital I Compartment D3.71%0.39%
Endeavour Funding Co. LLC3.79%0.27%
Deutsche Bank Spears/Lifers Trust 4.900000%4.17%2.08%
Invesco Senior Income Trust 3.810000%3.78%1.93%
Tender Option Bond Trust Receipts/Certificates 3.940000%3.90%1.66%
Nuveen Variable Rate Preferred & Income Fund 4.940000%3.66%1.64%
Jefferson Monrovia South LLC3.72%1.52%
Taxable Municipal Funding Trust 5.150000%3.95%1.36%
Jefferson Exchange at Riverside LLC 4.950000%3.72%1.09%
Mizuho Floater/Residual Trust 5.060000%3.85%0.94%
SRM Culver City LP 4.950000%3.72%0.90%
Allen C Stonecipher Life Insurance Trust 4.950000%3.72%0.88%
412 Madison LLC 4.950000%3.72%0.82%
Taxable Municipal Funding Trust 5.150000%3.95%0.79%
Nuveen Preferred & Income Opportunities Fund 5.000000%3.78%0.77%
City & County of San Francisco, CA 5.000000%3.83%0.70%
Tender Option Bond Trust Receipts/Certificates 4.600000%3.89%0.69%
Taxable Municipal Funding Trust 4.650000%3.95%0.63%
Nuveen Credit Strategies Income Fund 5.000000%3.75%0.62%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.80%0.62%
New York City Municipal Water Finance Authority 5.000000%3.83%0.62%
Uptown Newport Building Owner LP 5.000000%3.77%0.62%
Mizuho Floater/Residual Trust 5.260000%4.01%0.61%
Anton Santa Cruz LLC 4.950000%3.72%0.59%
Shil Park Irrevocable Life Insurance Trust (The) 4.950000%3.72%0.58%
Synergy Colgan Creek LLC 4.950000%3.72%0.54%
Deutsche Bank Spears/Lifers Trust 5.400000%4.17%0.54%
Taxable Municipal Funding Trust 5.150000%3.95%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%0.46%
SRMHayward LLC 4.950000%3.72%0.46%
Trinity Mills Multifamily I Owner LLC 4.400000%3.72%0.43%
Barbour Issuing Trust 4.950000%3.72%0.42%
Capital Source 31 LLC 4.200000%4.20%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%0.37%
Cypress Bend Real Estate Development Co. LLC 4.950000%3.72%0.31%
KDF Glenview LP 4.950000%3.72%0.31%
Mizuho Floater/Residual Trust 4.950000%3.74%0.29%
New York State Housing Finance Agency 0.350000%3.64%0.25%
Campos Charitable Trust (The) 4.950000%3.72%0.24%
Steve Welch Family Insurance Trust 4.950000%3.72%0.24%
Taxable Municipal Funding Trust 5.150000%3.95%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%
Stobro Co. LP 4.500000%3.82%0.22%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.80%0.22%
Richard & Allison Leigh Insurance Trust 4.850000%3.77%0.22%
AHI Fund II LLC 4.900000%3.72%0.21%
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%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.80%0.15%
Krawitz Family Insurance Trust (The) 4.950000%3.72%0.15%
Tender Option Bond Trust Receipts/Certificates 5.010000%3.80%0.14%
World Changers Trust 4.450000%3.72%0.14%
New York City Housing Development Corp. 5.400000%3.72%0.10%
Taxable Municipal Funding Trust 5.150000%3.95%0.09%
Leo@cartersville LLC 4.400000%3.72%0.08%
Labcon North America 5.000000%4.10%0.07%
Kentucky Housing Corp. 0.380000%3.85%0.04%
New York State Dormitory Authority 5.000000%3.83%0.03%
New York State Dormitory Authority 5.000000%3.83%0.02%
U.S. Treasury Note 4.500000%3.85%4.46%
U.S. Treasury Note 3.750000%3.86%2.89%
U.S. Treasury Note 4.625000%3.89%1.92%
U.S. Treasury Note 3.750000%3.69%0.97%
U.S. Treasury Bill3.71%0.89%
U.S. Treasury Note3.80%0.58%
U.S. Treasury Note 0.750000%3.72%0.57%
National Bank of Canada 3.990000%3.92%1.93%
Royal Bank of Canada 3.880000%3.88%1.93%
Collateralized Commercial Paper V Co. LLC 3.950000%3.87%0.97%
Collateralized Commercial Paper V Co. LLC 3.990000%3.90%0.97%
Toronto-Dominion Bank (The) 3.980000%3.90%0.97%
Collateralized Commercial Paper V Co. LLC 3.940000%3.94%0.97%
Bank of Montreal 3.950000%3.90%0.77%
Collateralized Commercial Paper V Co. LLC 4.060000%4.07%0.58%
City of New York, NY 4.124000%4.01%1.35%
Tender Option Bond Trust Receipts/Certificates 3.910000%3.90%0.77%
Tender Option Bond Trust Receipts/Certificates 3.910000%3.90%0.75%
County of Santa Clara, CA 5.000000%3.89%0.39%
Toyota Credit de Puerto Rico Corp.3.91%0.96%
Toyota Credit de Puerto Rico Corp.3.93%0.96%
Toyota Credit de Puerto Rico Corp.3.95%0.76%
Memorial Health System4.09%0.57%
CIG DS1 LLC 5.000000%5.00%0.97%
Toronto-Dominion Bank (The) 2.800000%4.10%0.57%
Bank of America NA 5.526000%3.92%0.39%
Toronto-Dominion Bank (The) 3.950000%3.93%0.77%
Banco Santander SA 3.960000%3.90%0.08%
Banco Santander SA 3.870000%3.82%0.04%
BNP Paribas SA 3.800000%3.74%0.01%