Fund · Invesco Taxable Municipal Bond ETF · measured from SEC filings
BAB holdings
BAB reports 1,867 holdings and behaves like 411.6 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 2026-05-31Computed 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: 0.14% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-05-31BAB's largest investment is Illinois (state Of), Series 2003, GO Bonds at 1.47% of net assets. California (state Of), Series 2009, GO Bonds and Illinois (state Of), Series 2010 2, GO Bonds follow; the three together are 3.56%. Ten companies are 8.74% of the fund; the other 1,857 share the rest. Among the 192 bond funds measured here, BAB behaves like 411.6 holdings against a median of 236.4 — 1.7 times the median. Across 27 quarterly filings BAB has become less concentrated: it behaved like 122.2 at 2019-11-30 and 411.6 at 2026-05-31. Between the 2026-02-28 and 2026-05-31 filings 416 positions were added and 29 dropped; 11.0% 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
27Between 2019-11-30 and 2026-05-31, BAB went from behaving like 122.2 equally weighted positions to 411.6 — 237% more, while its top ten went from 18.37% to 8.74% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-05-31 | 1,867 | 411.6 | 8.74% | 1.49% |
| 2026-02-28 | 1,480 | 351.1 | 9.66% | 1.51% |
| 2025-11-30 | 1,107 | 216 | 12.67% | 4.23% |
| 2025-08-31 | 975 | 249.3 | 12.09% | 2.71% |
| 2025-05-31 | 879 | 292.5 | 10.41% | 1.4% |
| 2025-02-28 | 628 | 288.6 | 10.25% | 1.34% |
| 2024-11-30 | 633 | 308.1 | 9.02% | 1.23% |
| 2024-08-31 | 635 | 306.1 | 9.25% | 1.78% |
Earlier filings (19 more, back to 2019-11-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-05-31 | 651 | 317.2 | 8.97% | 1.74% |
| 2024-02-29 | 734 | 351.1 | 8.45% | 1.32% |
| 2023-11-30 | 711 | 342.9 | 8.64% | 1.35% |
| 2023-08-31 | 703 | 332.7 | 8.89% | 1.38% |
| 2023-05-31 | 681 | 313 | 9.68% | 1.5% |
| 2023-02-28 | 664 | 316.6 | 9.14% | 1.46% |
| 2022-11-30 | 655 | 298.1 | 9.91% | 1.64% |
| 2022-08-31 | 691 | 287.3 | 10.63% | 1.59% |
| 2022-05-31 | 640 | 284.8 | 9.88% | 1.44% |
| 2022-02-28 | 657 | 303.5 | 8.89% | 1.32% |
| 2021-11-30 | 659 | 296.4 | 8.89% | 1.27% |
| 2021-08-31 | 610 | 273.4 | 9.48% | 1.38% |
| 2021-05-31 | 585 | 249.5 | 10.77% | 2.09% |
| 2021-02-28 | 543 | 199.6 | 13.23% | 3.43% |
| 2020-11-30 | 443 | 169.3 | 14.59% | 3.99% |
| 2020-08-31 | 379 | 145.4 | 15.97% | 4.45% |
| 2020-05-31 | 323 | 151.4 | 15.26% | 2.22% |
| 2020-02-29 | 347 | 130.5 | 17.99% | 3.41% |
| 2019-11-30 | 318 | 122.2 | 18.37% | 3.8% |
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 2026-05-31The 15 largest of 1,867 positions in BAB's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: BAB.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | Illinois (State of) | 1.49% | 1.5% |
| 2 | California (State of) | 1.25% | 2.7% |
| 3 | Illinois (State of) | 0.86% | 3.6% |
| 4 | California (State of) | 0.84% | 4.4% |
| 5 | California (State of) | 0.84% | 5.3% |
| 6 | California (State of) | 0.81% | 6.1% |
| 7 | Board of Regents of the University of Texas System | 0.69% | 6.8% |
| 8 | California (State of) | 0.66% | 7.4% |
| 9 | New Jersey (State of) Turnpike Authority | 0.65% | 8.1% |
| 10 | Metro | 0.65% | 8.7% |
| 11 | Texas Natural Gas Securitization Finance Corp. | 0.63% | 9.4% |
| 12 | California (State of) | 0.61% | 10.0% |
| 13 | Massachusetts (Commonwealth of) | 0.58% | 10.6% |
| 14 | New Jersey (State of) Turnpike Authority | 0.55% | 11.1% |
| 15 | New York (City of), NY | 0.55% | 11.7% |
Returns the fund reported
2019-09 – 2026-05Monthly total returns from Item B.5 of BAB's own filings, 81 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference 0.21 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: BAB.json · all funds.
Since the previous filing
2026-02-28 → 2026-05-311,480 positions became 1,867: 416 added (5.7% of the fund at the later date), 29 dropped (1.6% at the earlier date). Half the sum of all weight changes, a turnover proxy: 11.0%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of BAB compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-02-28 | 2026-05-31 | Largest decreases | 2026-02-28 | 2026-05-31 |
|---|---|---|---|---|---|
| Illinois (State of) | 0.92% | 1.49% | Invesco Government & Agency Portfolio | 1.51% | 0.14% |
| Louisiana Local Government Environmental Facilities & Co | 0.01% | 0.23% | University of California | 0.32% | 0.09% |
| City of New York NY | 0.01% | 0.19% | New York (State of) Dormitory Authority | 0.21% | 0.01% |
| Louisiana Local Government Environmental Facilities & Co | 0.05% | 0.23% | California (State of) | 0.80% | 0.61% |
| New Jersey (State of) Turnpike Authority | 0.49% | 0.65% | Fulton (County of), GA Development Authority (Georgia Tech A | 0.36% | 0.19% |
| Georgia (State of) Municipal Electric Authority (Plant Vogtl | 0.17% | 0.30% | Hawaii (State of) | 0.42% | 0.27% |
New: City of New York NY (0.26%), State of California (0.21%), Ohio Turnpike & Infrastructure Commission (0.19%), Oklahoma Development Finance Authority (0.18%), Salt River Project Agricultural Improvement & Power Dist (0.14%), New York City Municipal Water Finance Authority (0.14%). Gone: East Bay Municipal Utility District (0.30%), New York (City of), NY (0.18%), New York (City of), NY (0.13%), Bay Area Toll Authority (0.12%), Colorado Housing and Finance Authority (0.10%), East Bay Municipal Utility District (0.10%).
Asset categories and pricing
as of 2026-05-3199.86% debt, 0.14% short-term investment as filed; 0.1% 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.
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of BAB (411.6). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| USTB VictoryShares Short-Term Bond ETF | 1,059 | 382 | 10.65% | 2026-06-30 |
| BSCR Invesco BulletShares 2027 Corporate Bond ETF | 495 | 383.2 | 6.69% | 2026-05-31 |
| EBND State Street(R) SPDR(R) Bloomberg Emerging Markets Local Bond ETF | 627 | 393.6 | 6.22% | 2026-06-30 |
| DFSD Dimensional Short-Duration Fixed Income ETF | 1,603 | 402 | 9.16% | 2026-07-31 |
| EMB iShares J.P. Morgan USD Emerging Markets Bond ETF | 623 | 409.7 | 7.57% | 2026-07-31 |
| 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 |
| TAXF American Century Diversified Municipal Bond ETF | 755 | 429.2 | 7.49% | 2026-05-31 |
Essays that examine BAB
0Mentions 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.