Fund · Invesco National AMT-Free Municipal Bond ETF · measured from SEC filings
PZA holdings
PZA reports 6,664 holdings and behaves like 3341.2 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 2026-05-31Computed 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% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-05-31PZA's largest investment is California (state Of) Health Facilities Financing Authority (kaiser Permanente), Subseries 2017 A-2, RB at 0.13% of net assets. New York (state Of) Dormitory Authority, Series 2024 A, Ref. RB and New York (state Of) Dormitory Authority, Series 2020 D, Ref. RB follow; the three together are 0.36%. Ten companies are 1.1% of the fund; the other 6,654 share the rest. Among the 192 bond funds measured here, PZA behaves like 3341.2 holdings against a median of 236.4 — 14.1 times the median. Across 27 quarterly filings PZA has become less concentrated: it behaved like 205.1 at 2019-11-30 and 3341.2 at 2026-05-31. Between the 2026-02-28 and 2026-05-31 filings 708 positions were added and 110 dropped; 15.4% 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, PZA went from behaving like 205.1 equally weighted positions to 3341.2 — 1529% more, while its top ten went from 12.32% to 1.1% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-05-31 | 6,664 | 3341.2 | 1.1% | 0.14% |
| 2026-02-28 | 6,066 | 2740.4 | 1.27% | 0.15% |
| 2025-11-30 | 5,555 | 2275.4 | 1.62% | 0.27% |
| 2025-08-31 | 4,742 | 1708.2 | 2.28% | 0.45% |
| 2025-05-31 | 4,068 | 1316.2 | 3.09% | 0.48% |
| 2025-02-28 | 3,263 | 1027.3 | 3.81% | 0.6% |
| 2024-11-30 | 2,976 | 990.6 | 3.86% | 0.6% |
| 2024-08-31 | 2,289 | 863.9 | 4.17% | 0.66% |
Earlier filings (19 more, back to 2019-11-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-05-31 | 2,095 | 825.8 | 4.28% | 0.67% |
| 2024-02-29 | 1,634 | 757.4 | 4.51% | 0.71% |
| 2023-11-30 | 1,284 | 676.4 | 4.81% | 0.76% |
| 2023-08-31 | 1,021 | 575.1 | 5.36% | 0.81% |
| 2023-05-31 | 916 | 520 | 5.69% | 0.9% |
| 2023-02-28 | 884 | 493.1 | 6.02% | 0.91% |
| 2022-11-30 | 821 | 466.3 | 5.98% | 0.94% |
| 2022-08-31 | 751 | 418.4 | 6.66% | 1.04% |
| 2022-05-31 | 721 | 400.5 | 6.92% | 1.07% |
| 2022-02-28 | 732 | 402.7 | 7.06% | 1.04% |
| 2021-11-30 | 711 | 384.7 | 7.33% | 1% |
| 2021-08-31 | 686 | 367.6 | 7.7% | 1.03% |
| 2021-05-31 | 661 | 359.5 | 7.42% | 1.09% |
| 2021-02-28 | 574 | 325.8 | 7.98% | 1.16% |
| 2020-11-30 | 504 | 295.3 | 8.64% | 1.2% |
| 2020-08-31 | 515 | 240.2 | 11.77% | 1.58% |
| 2020-05-31 | 428 | 222.6 | 11.6% | 1.62% |
| 2020-02-29 | 455 | 225.7 | 11.31% | 1.4% |
| 2019-11-30 | 424 | 205.1 | 12.32% | 1.63% |
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 6,664 positions in PZA's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: listed with the point-in-time files, available on request.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | California (State of) Health Facilities Financing Authority (Kaiser Permanente) | 0.14% | 0.1% |
| 2 | New York (State of) Dormitory Authority | 0.12% | 0.3% |
| 3 | New York (State of) Dormitory Authority | 0.11% | 0.4% |
| 4 | Salt River Project Agricultural Improvement & Power District | 0.11% | 0.5% |
| 5 | Texas Water Development Board | 0.11% | 0.6% |
| 6 | Regents of the University of California Medical Center | 0.10% | 0.7% |
| 7 | Regents of the University of California Medical Center | 0.10% | 0.8% |
| 8 | Orange (County of), FL Health Facilities Authority (Orlando Health Obligated Group) | 0.10% | 0.9% |
| 9 | Texas Transportation Finance Corp. | 0.10% | 1.0% |
| 10 | Triborough Bridge & Tunnel Authority | 0.10% | 1.1% |
| 11 | California (State of) Health Facilities Financing Authority (Cedars-Sinai Medical Center) | 0.10% | 1.2% |
| 12 | New York State Urban Development Corp. | 0.10% | 1.3% |
| 13 | San Diego Unified School District (Election of 2012) | 0.10% | 1.4% |
| 14 | Lower Alabama Gas District (The) | 0.09% | 1.5% |
| 15 | New Jersey (State of) Turnpike Authority | 0.09% | 1.6% |
Returns the fund reported
2019-09 – 2026-05Monthly total returns from Item B.5 of PZA'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 0.15 percentage points over 81 months, which is roughly the distributions. Every month with the filing it came from: PZA.json · all funds.
Since the previous filing
2026-02-28 → 2026-05-316,066 positions became 6,664: 708 added (5.3% of the fund at the later date), 110 dropped (1.4% at the earlier date). Half the sum of all weight changes, a turnover proxy: 15.4%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of PZA 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 |
|---|---|---|---|---|---|
| Regents of the University of California Medical Center | 0.01% | 0.10% | New York (City of), NY Municipal Water Finance Authority | 0.10% | 0.01% |
| Illinois (State of) Metropolitan Pier & Exposition Autho | 0.02% | 0.09% | Jurupa Unified School District | 0.09% | 0.01% |
| New York (City of), NY Municipal Water Finance Authority | 0.00% | 0.07% | San Francisco (City & County of), CA Airport Commission | 0.10% | 0.02% |
| New York (City of), NY Municipal Water Finance Authority | 0.02% | 0.08% | Dallas (City of), TX Independent School District | 0.13% | 0.05% |
| New York (State of) Dormitory Authority | 0.01% | 0.07% | Massachusetts (Commonwealth of) | 0.08% | 0.01% |
| Orange (County of), FL Health Facilities Authority (Orlando | 0.00% | 0.06% | Massachusetts (Commonwealth of) | 0.09% | 0.02% |
New: San Francisco Bay Area Rapid Transit District (Election of 2 (0.06%), State of California (0.06%), State of California (0.05%), City of Houston TX Hotel Occupancy Tax & Special Revenue (0.05%), City of Houston TX Hotel Occupancy Tax & Special Revenue (0.05%), New York State Dormitory Authority (0.05%). Gone: California (State of) (0.09%), San Diego (County of), CA Regional Transportation Commission (0.08%), Washington (State of) (0.08%), University of California (0.08%), New York (State of) Dormitory Authority (0.06%), Wisconsin (State of) Public Finance Authority (KU Campus Dev (0.05%).
Asset categories and pricing
as of 2026-05-31100.00% debt as filed; 0.0% 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
6Every measured debt fund lined up by how many holdings it behaves like; these sit either side of PZA (3341.2). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| IGIB iShares 5-10 Year Investment Grade Corporate Bond ETF | 2,989 | 1843.2 | 1.99% | 2026-05-31 |
| LQD iShares iBoxx $ Investment Grade Corporate Bond ETF | 3,136 | 1889.9 | 2.41% | 2026-05-31 |
| IGLB iShares 10+ Year Investment Grade Corporate Bond ETF | 3,836 | 1905.3 | 2.64% | 2026-05-31 |
| SPIB State Street(R) SPDR(R) Portfolio Intermediate Term Corporate Bond ETF | 5,147 | 2196.7 | 2.69% | 2026-06-30 |
| QLTA iShares Aaa - A Rated Corporate Bond ETF | 3,502 | 2213.7 | 1.83% | 2026-07-31 |
| USIG iShares Broad USD Investment Grade Corporate Bond ETF | 11,459 | 6893.6 | 0.73% | 2026-05-31 |
Essays that examine PZA
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.