257 essays 1,087 funds measured independent · not paid by any fund or issuer we cover

Fund · American Century Diversified Municipal Bond ETF · measured from SEC filings

TAXF holdings

TAXF reports 755 holdings and behaves like 429.2 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-05-31. The fact sheet publishes the first number; this page computes the second, and traces it across 27 quarters of filings.

Measured concentration

as of 2026-05-31
755 Positions reported
429.2 Effective holdings
1.8× Concentration multiple
7.49% Top ten weight

Computed by this site from the fund's SEC Form N-PORT filing; what the measure does not tell you · every fund in one table · hold it with other funds? X-ray the mix. Pricing: 1.6% at a quoted market price (level 1), 4 issuer countries.

What stands out

as of 2026-05-31

The largest line in TAXF's filing is not a stock but BlackRock Liquidity Funds MuniCash, a equity position at 1.6% of net assets. Ten companies are 7.49% of the fund; the other 745 share the rest. Among the 192 bond funds measured here, TAXF behaves like 429.2 holdings against a median of 236.4 — 1.8 times the median. Across 27 quarterly filings TAXF has become less concentrated: it behaved like 74 at 2019-11-30 and 429.2 at 2026-05-31. Between the 2026-02-28 and 2026-05-31 filings 63 positions were added and 22 dropped; 16.3% of the weight moved.

Each sentence is read from the fund's own SEC filing; the class median is computed across the comparable bond funds on this site. Nothing here is a view on the fund.

Every filing since 2019

27

Between 2019-11-30 and 2026-05-31, TAXF went from behaving like 74 equally weighted positions to 429.2 — 480% more, while its top ten went from 23.53% to 7.49% of net assets. Read across the funds on the concentration-over-time table.

PeriodHoldingsEffective Top 10Largest
2026-05-31 755 429.2 7.49% 1.6%
2026-02-28 713 454 6.32% 1.07%
2025-11-30 688 419.3 6.78% 1.65%
2025-08-31 674 437.1 6.03% 1.36%
2025-05-31 699 450.5 6.04% 1.36%
2025-02-28 732 508.5 4.83% 0.76%
2024-11-30 724 498.3 5.07% 0.97%
2024-08-31 688 493.7 4.64% 0.56%
Earlier filings (19 more, back to 2019-11-30)
PeriodHoldingsEffectiveTop 10Largest
2024-05-31 639 459.8 4.94% 0.6%
2024-02-29 601 438.8 4.98% 0.55%
2023-11-30 554 402.2 5.1% 0.61%
2023-08-31 524 280.1 7.99% 3.29%
2023-05-31 460 310.9 6.83% 1.2%
2023-02-28 439 274.2 8.67% 1.77%
2022-11-30 476 323.3 6.68% 0.9%
2022-08-31 486 281.7 8.42% 2.61%
2022-05-31 451 265.9 9.03% 2.43%
2022-02-28 445 151.3 12.57% 6%
2021-11-30 402 240.3 9.58% 1.78%
2021-08-31 362 147.2 13.71% 5.33%
2021-05-31 321 206.5 10.73% 2.15%
2021-02-28 265 178.7 11.78% 2.07%
2020-11-30 213 154.1 11.97% 1.39%
2020-08-31 200 131.1 14.34% 3.37%
2020-05-31 181 130.2 14.02% 1.64%
2020-02-29 138 100.5 16.8% 2.12%
2019-11-30 108 74 23.53% 3.3%

One row per filed reporting period, newest first, read from EDGAR. Quarterly because that is the public filing cadence. Rows marked * are published but held out of the comparison above; the methodology page says when and why.

Largest positions, as filed

as of 2026-05-31

The 15 largest of 755 positions in TAXF's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: TAXF.csv.gz.

#PositionWeightCumulative
1BlackRock Liquidity Funds MuniCash1.60%1.6%
2Public Finance Authority0.93%2.5%
3RIVERSPRING HLTH SENIOR0.90%3.4%
4United States Steel Corp0.76%4.2%
5New Jersey Higher Education Student Assistance Authority0.61%4.8%
6Puerto Rico Sales Tax Financing Corp Sales Tax Revenue0.60%5.4%
7ILLINOIS STATE TOLL AUTHO RITY0.58%6.0%
8Southeast Alabama Gas Supply District/The0.56%6.5%
9CHF - WILMINGTON LLC0.48%7.0%
10Orlando Utilities Commission0.47%7.5%
11Energy Southeast A Cooperative District0.43%7.9%
12Patriots Energy Group Financing Agency0.41%8.3%
13New York City Municipal Water Finance Authority0.41%8.7%
14Southeast Energy Authority A Cooperative District0.40%9.2%
15State of Illinois0.40%9.6%

By country of issuer

as of 2026-05-31

Share of TAXF's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.

CountryShare
United States 98.33%
Puerto Rico° 1.04%
Guam 0.32%
United Kingdom 0.31%

Returns the fund reported

2019-09 – 2026-05

Monthly total returns from Item B.5 of TAXF's own filings, 81 months on record. Not computed here and not from a price feed.

7.1%Last twelve months filed
13%Whole series, compounded
6.0%Best month
-6.1%Worst month

Cross-checked against a series computed separately from prices: median difference — percentage points over 0 months, which is roughly the distributions. Every month with the filing it came from: TAXF.json · all funds.

Since the previous filing

2026-02-28 → 2026-05-31

713 positions became 754: 63 added (13.4% of the fund at the later date), 22 dropped (2.4% at the earlier date). Half the sum of all weight changes, a turnover proxy: 16.3%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of TAXF compared this way, as a feed: changes.xml · all funds: filings received.

Largest increases2026-02-282026-05-31Largest decreases2026-02-282026-05-31
BlackRock Liquidity Funds MuniCash0.17%1.60% RIVERSPRING HLTH SENIOR1.05%0.90%
Patriots Energy Group Financing Agency0.14%0.41% Public Finance Authority1.07%0.93%
City of Chicago IL Wastewater Transmission Revenue0.14%0.34% Southeast Alabama Gas Supply District/The0.66%0.56%
North Texas Tollway Authority0.07%0.21% Energy Southeast A Cooperative District0.51%0.43%
Chicago Board of Education0.18%0.32% Orlando Utilities Commission0.55%0.47%
ILLINOIS STATE TOLL AUTHO RITY0.07%0.19% Black Belt Energy Gas District0.48%0.40%

New: United States Steel Corp (0.76%), New Jersey Higher Education Student Assistance Authority (0.61%), Puerto Rico Sales Tax Financing Corp Sales Tax Revenue (0.60%), CHF - WILMINGTON LLC (0.48%), New York City Municipal Water Finance Authority (0.41%), State of Illinois (0.40%). Gone: Port of Los Angeles (0.25%), City of Detroit MI (0.23%), BANNER HEALTH OBLIG GROUP (0.17%), Greater Orlando Aviation Authority (0.17%), State of Minnesota (0.16%), WAKE PREPARATORY ACADEMY (0.15%).

Asset categories and pricing

as of 2026-05-31

98.40% debt, 1.60% equity as filed; 1.6% carried at a quoted market price (fair-value level 1). Categories and levels are the filer's; what a low level-1 share does and does not mean is in the measure's page.

Derivative exposure and counterparties

as of 2026-05-31

A position count cannot describe a fund that uses derivatives, because a swap is filed at its unrealised gain, not its exposure. These are the notionals the fund itself reported, against net assets of $659M. Notional of an interest-rate or currency swap is not equity exposure.

1.6%Stocks held directly
0%Swap notional (0)
0%Futures notional (0)
1.6%Sum, % of net assets

1 option positions filed, 0 of them written. The book as filed:

TypeSideStrikeExpiryUnderlying
CallPurchased52035-11-26as filed, not named

Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).

Neighbours by effective holdings, debt funds

10

Every measured debt fund lined up by how many holdings it behaves like; these sit either side of TAXF (429.2). Same filings, same arithmetic. Position in this list says nothing about which fund is better.

FundReportsBehaves likeTop tenAs of
BAB Invesco Taxable Municipal Bond ETF 1,867 411.6 8.74% 2026-05-31
MMIT NYLIM MacKay Muni Intermediate ETF 855 412.4 8.41% 2026-07-31
CGMS Capital Group U.S. Multi-Sector Income ETF 1,493 422.4 6.76% 2026-06-30
BKAG BNY Mellon Core Bond ETF 5,130 427.3 7.38% 2026-07-31
IBDS iShares iBonds Dec 2027 Term Corporate ETF 660 427.5 7.11% 2026-07-31
TAFI AB Tax-Aware Short Duration Municipal ETF 689 432.2 7.16% 2026-05-31
VPLS Vanguard Core-Plus Bond ETF 2,903 446.1 * 9.8% 2026-06-30
HYMB State Street(R) SPDR Nuveen ICE High Yield Municipal Bond ETF 1,870 456.2 9.2% 2026-06-30
SPSB State Street(R) SPDR(R) Portfolio Short Term Corporate Bond ETF 1,601 463.5 6.92% 2026-06-30
EUSB iShares ESG Advanced Universal USD Bond ETF 4,233 479.3 6.99% 2026-05-31

Essays that examine TAXF

0

Mentions are detected across the full text of every article, so an appearance may be a passing comparison rather than the subject. Nothing here is a recommendation to buy or sell — see the disclaimer.