ATBYX
Intermediate-Term Tax-Free Bond Fund
American Century Municipal Trust

Portfolio concentration

As of February 28, 2026 · N-PORT
Holdings
1655
Top-10 weight
6.30%
Effective holdings ?
593
Crowding ?
16.3

Holdings

As of February 28, 2026 · N-PORT
#SecurityTickerSharesValue% of fund
1 PUBLIC FIN AUTH WI HLTHCARE SYS REVENUE 37,690,000 $37.69M 0.86%
2 CTR PLN ENG GAS 5% MT CENPWR 35,150,000 $37.61M 0.86%
3 MS BUS FIN COMMSN-C 37,385,000 $37.38M 0.85%
4 NYC MUNI WTR FIN-BB-2 31,400,000 $31.40M 0.72%
5 STRN UT INDN CO 5% 4/1/2035 STH 23,750,000 $26.63M 0.61%
6 NY BUIGEN 5 12/15/2031 25,000,000 $25.06M 0.57%
7 Commonwealth of Pennsylvania, Series 2026 21,010,000 $24.74M 0.56%
8 SOUTHEAST ENERGY-E SEEPWR 20,000,000 $21.81M 0.50%
9 NYC MUNI WTR-BB-VAR 21,325,000 $21.32M 0.49%
10 TN TNSUTL 5 11/01/2034 TNSUTL 18,900,000 $20.95M 0.48%
11 V/E HI YLD MUNI HYD 402,200 $20.75M 0.47%
12 ISHARES NATIONAL MUNI BOND ETF ISHARES NATIONAL MUNI BOND E MUB US 190,500 $20.75M 0.47%
13 VANGUARD TAX-EXM VTEB 401,700 $20.55M 0.47%
14 MONMOUTH CT NJ 3/12/27 BAN 20,000,000 $20.35M 0.46%
15 OHIO ST UNIV REGD N/C B/E 5.00000000 16,975,000 $20.34M 0.46%
16 MAIN STR NAT GA 4% 3/1/2050 MAIUTL 20,200,000 $20.32M 0.46%
17 HASTINGS CAMPUS HSG FIN AUTH C HCHGEN 07/45 FIXED 5 HCHGEN 19,815,000 $19.65M 0.45%
18 University of Oregon, Series 2026A 16,050,000 $19.40M 0.44%
19 NJ TRANSPRTN TRUST-A NJSTRN 17,500,000 $18.59M 0.42%
20 New York City Transitional Finance Authority, Series 2014 D-3 18,410,000 $18.41M 0.42%
21 State of Illinois 5.13% 12/01/2029 ILS 17,000,000 $17.77M 0.40%
22 Mississippi Business Finance Corp., Gulf Opportunity Zone Industrial Development, Chevron USA, Inc., Project, Series 2009F 17,475,000 $17.48M 0.40%
23 Black Belt Energy Gas District (The) (Gas), Series 2022 F, RB BBEUTL 16,170,000 $17.25M 0.39%
24 MICHIGAN ST HOSP FIN AUTH MICHIGAN STATE HOSPITAL FINANCE AUTHORITY 15,000,000 $17.18M 0.39%
25 State of North Carolina 5.00% 03/01/2034 NCSGEN 15,000,000 $16.10M 0.37%
26 BLACK BELT ENERGY GAS VAR BBEUTL 15,000,000 $16.06M 0.37%
27 District of Columbia, Series 2019 C, Ref. RB DISGEN 14,600,000 $15.91M 0.36%
28 Pinellas (County of), FL Industrial Development Authority (2017 Foundation for Global Understanding), Series 2019, RB PINDEV 15,540,000 $15.82M 0.36%
29 Black Belt Energy Gas District, Series F BBEUTL 14,285,000 $15.72M 0.36%
30 State of Illinois, Series D ILS 15,000,000 $15.65M 0.36%
31 BLACK BELT ENERGY GAS DISTRICT (MPT) 5.0% 03-01-55 BBEUTL 13,845,000 $15.28M 0.35%
32 IN ST FIN AUTH ENVIRONMENTL RVVAR-REF-DUKE ENERGY IND PJ-A-5LOC BANK OF AMERICA N.A. INSENV 15,235,000 $15.24M 0.35%
33 ENERGY NW/WPPS 5% 7/1/2033 ENEPWR 13,000,000 $15.04M 0.34%
34 MUNIBOND CENPWR 14,000,000 $14.90M 0.34%
35 TX TRANSPRTN-B-REF TXSTRN 12,860,000 $14.06M 0.32%
36 NEW YORK ST DORM AUTH NYSHGR 13,490,000 $13.91M 0.32%
37 DT OF COLUMBIA-B-REF 12,000,000 $13.86M 0.32%
38 NH NFADEV 4.12 01/20/2034 NFADEV 13,271,405 $13.86M 0.32%
39 NORTH CAROLINA ST MED CARE COMMISSION RETMNT FACS REVENUE 13,560,000 $13.63M 0.31%
40 TX TXSUTL 01/01/2055 TXSUTL 12,300,000 $13.47M 0.31%
41 TX TAREDU 11/15/2064 TAREDU 11,720,000 $13.24M 0.30%
42 Public Energy Authority of Kentucky, Gas Supply Revenue Bonds, Refunding Series 2024A-1 KYSPWR 12,000,000 $13.21M 0.30%
43 SALT VERDE FINL CORP GAS REV ARIZ SR SLTPWR 11,855,000 $13.13M 0.30%
44 State of Connecticut, Series 2020A CTS 12,560,000 $13.11M 0.30%
45 OGLETHORPE POWER CORP (MPT) 3.6% 01-01-40 BURPOL 12,500,000 $12.91M 0.29%
46 St. John the Baptist Parish, LA Rev. Refg. (Marathon Oil Corporation) A-1 SJBCTF 12,600,000 $12.66M 0.29%
47 SOUTHEAST ENRG 5% MT SEEPWR 11,715,000 $12.61M 0.29%
48 Jefferson (County of), AL, Series 2024, Ref. Revenue Wts. JEFUTL 11,095,000 $12.41M 0.28%
49 COLORADO ST HLTH FACS AUTH REV REGD B/E 4.00000000 COSMED 12,475,000 $12.38M 0.28%
50 Washington (State of) (Bid Group 1), Series 2021 C, GO Bonds WAS 10,865,000 $12.20M 0.28%
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