Fund · Dimensional National Municipal Bond ETF · measured from SEC filings
DFNM holdings
DFNM reports 1,200 holdings and behaves like 538 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-07-31. The fact sheet publishes the first number; this page computes the second, and traces it across 18 quarters of filings.
Measured concentration
as of 2026-07-31Computed 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: 0.11% at a quoted market price (level 1), one issuer country.
What stands out
as of 2026-07-31DFNM's largest investment is County OF Hudson NJ at 0.87% of net assets. School District OF Broward County FL and City OF Hoboken NJ follow; the three together are 2.4%. Ten companies are 6.03% of the fund; the other 1,190 share the rest. Among the 192 bond funds measured here, DFNM behaves like 538 holdings against a median of 236.4 — 2.3 times the median. Across 18 quarterly filings DFNM has become less concentrated: it behaved like 239.5 at 2022-01-31 and 509.9 at 2026-04-30. Between the 2026-01-31 and 2026-04-30 filings 86 positions were added and 68 dropped; 10.6% 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 2022
18Between 2022-07-31 and 2026-04-30, DFNM went from behaving like 239.5 equally weighted positions to 509.9 — 113% more, while its top ten went from 11.59% to 6.53% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-04-30 | 1,147 | 509.9 | 6.53% | 0.87% |
| 2026-01-31 | 1,129 | 513 | 6.33% | 0.85% |
| 2025-10-31 | 1,087 | 515.8 | 6.12% | 0.91% |
| 2025-07-31 | 1,057 | 507.2 | 6.29% | 1.01% |
| 2025-04-30 | 1,025 | 479.6 | 6.52% | 0.97% |
| 2025-01-31 | 1,001 | 457.1 | 6.8% | 0.96% |
| 2024-10-31 | 994 | 437.1 | 7.34% | 1.1% |
| 2024-07-31 | 993 | 423.9 | 7.56% | 1.14% |
Earlier filings (10 more, back to 2022-01-31)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-04-30 | 979 | 428.1 | 7.05% | 1.02% |
| 2024-01-31 | 968 | 405.5 | 7.62% | 1.23% |
| 2023-10-31 | 905 | 289.6 | 10.15% | 3.12% |
| 2023-07-31 | 863 | 363.8 | 7.77% | 1.28% |
| 2023-04-30 | 822 | 337.7 | 8.49% | 1.46% |
| 2023-01-31 | 802 | 233.2 | 11.65% | 3.66% |
| 2022-10-31 | 715 | 278.3 | 9.62% | 1.22% |
| 2022-07-31 | 607 | 239.5 | 11.59% | 1.52% |
| 2022-04-30 * | 445 | 186.9 | 13.62% | 2.15% |
| 2022-01-31 * | 266 | 149.2 | 14.3% | 1.91% |
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 2026-04-30The 15 largest of 1,200 positions in DFNM's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: DFNM.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | HUDSON CNTY N J | 0.87% | 0.9% |
| 2 | BROWARD CNTY FLA SCH DIST | 0.81% | 1.7% |
| 3 | HOBOKEN N J | 0.73% | 2.4% |
| 4 | SUFFOLK CNTY N Y | 0.72% | 3.1% |
| 5 | MICHIGAN ST UNIV REVS | 0.65% | 3.8% |
| 6 | MANCHESTER N H | 0.64% | 4.4% |
| 7 | MARYLAND ST | 0.55% | 5.0% |
| 8 | NEW MEXICO ST | 0.53% | 5.5% |
| 9 | FAIRFAX CNTY VA | 0.53% | 6.0% |
| 10 | MIAMI-DADE CNTY FLA | 0.51% | 6.5% |
| 11 | WISCONSIN ST | 0.49% | 7.0% |
| 12 | COLORADO ST ED LN PROG | 0.49% | 7.5% |
| 13 | DANBURY CONN | 0.48% | 8.0% |
| 14 | COBB CNTY GA SCH DIST | 0.48% | 8.5% |
| 15 | UNIVERSITY HOUSTON TEX UNIV REVS | 0.47% | 8.9% |
Returns the fund reported
2021-11 – 2026-04Monthly total returns from Item B.5 of DFNM's own filings, 54 months on record. Not computed here and not from a price feed.
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: DFNM.json · all funds.
Since the previous filing
2026-01-31 → 2026-04-301,129 positions became 1,147: 86 added (10.3% of the fund at the later date), 68 dropped (5.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 10.6%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of DFNM compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-01-31 | 2026-04-30 | Largest decreases | 2026-01-31 | 2026-04-30 |
|---|---|---|---|---|---|
| NEW YORK ST DORM AUTH SALES TAX REV ST SUPPORTED DEBT | 0.13% | 0.34% | LOUISVILLE & JEFFERSON CNTY KY METRO GOVT HEALTH SYS REV | 0.62% | 0.08% |
| City of New York | 0.08% | 0.11% | MARYLAND ST HEALTH & HIGHER EDL FACS AUTH REV | 0.39% | 0.02% |
| BlackRock Liquidity Funds: MuniCash; Institutional Shares | 0.05% | 0.05% | BROWARD CNTY FLA SCH DIST | 0.85% | 0.81% |
| CLARKE CNTY GA SCH DIST | 0.02% | 0.02% | MARYLAND ST | 0.59% | 0.55% |
| DALLAS CNTY TEX CMNTY COLLEGE DIST | 0.09% | 0.10% | MICHIGAN ST UNIV REVS | 0.68% | 0.65% |
| SOUTHEASTERN PA TRANSN AUTH REV | 0.01% | 0.02% | City of New York | 0.33% | 0.29% |
New: HUDSON CNTY N J (0.87%), HOBOKEN N J (0.73%), DANBURY CONN (0.48%), UNIVERSITY HOUSTON TEX UNIV REVS (0.47%), CHARLOTTE-MECKLENBERG HOSP AUTH N C HEALTH CARE SYS REV (0.35%), ESSEX CNTY N J IMPT AUTH LEASE REV (0.33%). Gone: BEAUFORT CNTY S C SCH DIST (0.34%), HOBOKEN N J (0.30%), FORT BEND CNTY TEX (0.25%), BEAUFORT CNTY S C SCH DIST (0.22%), ROCHESTER N Y (0.22%), FORT WORTH TEX (0.20%).
Asset categories and pricing
as of 2026-07-3199.86% 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 DFNM (538). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| 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 |
| MLN VanEck Long Muni ETF | 654 | 485.5 | 5.4% | 2026-07-31 |
| VCRB Vanguard Core Bond ETF | 3,486 | 501.4 | 8.36% | 2026-06-30 |
| VWOB Vanguard Emerging Markets Government Bond Index Fund | 935 | 532.4 | 6.58% | 2026-07-31 |
| AGG iShares Core U.S. Aggregate Bond ETF | 13,268 | 562.7 | 6.3% | 2026-05-31 |
| VCRM Vanguard Core Tax-Exempt Bond ETF | 2,404 | 571.2 | 7.13% | 2026-07-31 |
| AGGY WisdomTree Yield Enhanced U.S. Aggregate Bond Fund | 2,140 | 582.6 | 8.16% | 2026-05-31 |
| SHM State Street(R) SPDR Nuveen ICE Short Term Municipal Bond ETF | 1,045 | 604 | 5.36% | 2026-06-30 |
| PWZ Invesco California AMT-Free Municipal Bond ETF | 1,158 | 608.2 | 5.92% | 2026-05-31 |
Essays that examine DFNM
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.