American Century Investments Tax-Free Money Market Fund Investor Class

BNTXX

Tax-ExemptRetail
7-day Yield
#317
2.04%
as of 6/27/2025
Net assets
$163.9M
Expense ratio
0.00%
WAM
15
WAL
15
Minimum
$2.5K
Holding details
92% Variable Rate Demand Notes
8% Municipal Bonds
as of 5/31/2025

Performance

Portfolio Securities

SecurityYield%
Deutsche Bank Spears/Lifers Trust 3.550000%2.37%4.84%
Roanoke Economic Development Authority 3.670000%1.95%3.66%
Illinois Development Finance Authority 3.250000%2.30%3.45%
St. Paul Port Authority 3.400000%2.22%3.25%
South Carolina State Housing Finance & Development Authority 3.290000%1.97%2.75%
Tender Option Bond Trust Receipts/Certificates 3.470000%2.25%2.58%
City of Los Angeles, CA 4.000000%2.92%2.56%
Illinois Housing Development Authority 3.230000%2.05%2.54%
Tender Option Bond Trust Receipts/Certificates 3.470000%2.25%2.44%
Minnesota Higher Education Facilities Authority 3.250000%2.10%2.41%
Louisiana Housing Corp. 3.230000%2.05%2.40%
Iowa Finance Authority 3.350000%2.17%2.06%
Tender Option Bond Trust Receipts/Certificates 3.200000%2.02%2.03%
Illinois Finance Authority 3.150000%1.80%1.94%
State of Texas 3.150000%1.80%1.89%
Charlotte-Mecklenburg Hospital Authority (The) 1.980000%2.05%1.74%
Louisiana Public Facilities Authority 3.200000%2.11%1.60%
Tender Option Bond Trust Receipts/Certificates 3.200000%2.02%1.59%
Mizuho Floater/Residual Trust 3.470000%2.25%1.53%
Harris County Hospital District 0.100000%2.02%1.53%
Illinois Housing Development Authority 3.200000%1.80%1.49%
Deutsche Bank Spears/Lifers Trust 3.800000%2.62%1.48%
North Dakota Housing Finance Agency 3.820000%1.95%1.38%
South Carolina Public Service Authority 3.390000%2.22%1.28%
Mission Economic Development Corp. 3.300000%2.12%1.27%
Village of Palatine 3.240000%2.29%1.22%
Louisiana Offshore Terminal Authority 0.530000%1.85%1.22%
Rib Floater Trust Various States 3.400000%2.22%1.22%
King County Housing Authority 1.850000%1.95%1.19%
Los Angeles Industrial Development Authority 3.200000%2.02%1.18%
Tender Option Bond Trust Receipts/Certificates 3.230000%2.05%1.17%
Fayette County Hospital Authority/PA 1.830000%1.95%1.16%
Wisconsin Housing & Economic Development Authority Home Ownership Revenue 3.300000%1.85%1.15%
Halifax Hospital Medical Center 3.300000%1.95%1.11%
Nevada Housing Division 3.300000%1.85%1.08%
Alaska Housing Finance Corp. 3.570000%1.92%1.07%
County of Allen, OH Hospital Facilities Revenue 1.950000%1.95%1.07%
Clarksville Public Building Authority 3.230000%2.15%1.04%
Tender Option Bond Trust Receipts/Certificates 3.250000%2.07%0.98%
Covington Industrial Development Board 3.400000%1.95%0.92%
JEA Water & Sewer System Revenue 3.310000%2.16%0.92%
Southwestern Illinois Development Authority 3.500000%2.10%0.85%
Gary Chicago International Airport Authority 1.900000%2.01%0.85%
City of Huntington, IN 3.320000%2.05%0.79%
City of Minneapolis, MN 3.200000%2.02%0.77%
Iowa Finance Authority 1.860000%1.97%0.76%
South Carolina Jobs-Economic Development Authority 3.180000%2.00%0.73%
Illinois Housing Development Authority 3.210000%2.12%0.73%
Rib Floater Trust Various States 3.400000%2.22%0.64%
Illinois Educational Facilities Authority 3.370000%2.00%0.61%
County of Palm Beach, FL 3.160000%1.98%0.61%
Holland Creek Metropolitan District 3.150000%1.94%0.61%
Mizuho Floater/Residual Trust 3.470000%2.25%0.54%
Bridgeton Industrial Development Authority 3.300000%2.12%0.54%
Lynchburg Industrial Development Authority 2.600000%2.60%0.52%
RBC Municipal Products, Inc. Trust 3.250000%2.07%0.49%
Tarrant County Housing Finance Corp. 3.210000%2.05%0.48%
Tender Option Bond Trust Receipts/Certificates 3.280000%1.99%0.48%
Metropolitan Government Nashville & Davidson County Industrial Development Board 4.450000%2.00%0.46%
Illinois Finance Authority 3.230000%2.05%0.46%
County of Elkhart 3.290000%2.05%0.46%
Hillsborough County Industrial Development Authority 3.270000%2.04%0.43%
Springfield Industrial Development Authority 3.650000%2.47%0.43%
City of Lowell, AR2.15%0.41%
Lower Cape Fear Water & Sewer Authority 3.230000%2.06%0.37%
Pinellas County Housing Finance Authority 3.150000%2.00%0.37%
San Antonio Housing Trust Finance Corp. 3.300000%2.10%0.37%
South Carolina Jobs-Economic Development Authority 3.290000%1.97%0.37%
Bay Area Toll Authority 2.550000%2.55%0.35%
Illinois Development Finance Authority 3.140000%1.97%0.31%
Florida Housing Finance Corp. 3.850000%2.00%0.31%
Illinois Finance Authority 3.230000%2.05%0.31%
Illinois Finance Authority 1.650000%1.95%0.24%
Arizona Health Facilities Authority 3.000000%3.00%0.22%
County of Jefferson, CO 3.250000%2.35%0.21%
City of Wright City, MO 3.300000%2.12%0.21%
Mizuho Floater/Residual Trust 3.470000%2.25%0.21%
State of Texas 3.300000%2.25%0.20%
Riverside County Industrial Development Authority 0.890000%1.92%0.18%
State of Texas 3.150000%1.80%0.00%
County of Harris TX 2.910000%3.06%1.83%
Massachusetts Development Finance Agency 3.050000%2.90%1.53%
San Francisco City & County Public Utilities Commission Wastewater Revenue 1.000000%4.01%1.51%
State of Washington 5.000000%2.86%0.96%
Municipal Improvement Corp. of Los Angeles 3.000000%2.10%0.92%
County of Hillsborough FL 3.000000%3.00%0.61%
University of California 3.000000%3.00%0.46%
Port Authority of New York & New Jersey 5.000000%2.86%0.25%