Fund · Vanguard Short Duration Bond ETF · measured from SEC filings
VSDB holdings
VSDB reports 1,317 holdings and behaves like 254.1 equally weighted ones, computed from its SEC Form N-PORT filing for 2026-06-30. The fact sheet publishes the first number; this page computes the second, and traces it across 5 quarters of filings.
Measured concentration
as of 2026-06-30Computed 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: 0.99% at a quoted market price (level 1), 56 issuer countries, 26.3% restricted securities.
What stands out
as of 2026-06-30VSDB's largest investment is US Treasury N/B at 1.9% of net assets. US Treasury N/B and US Treasury N/B follow; the three together are 5.12%. Ten companies are 13.95% of the fund; the other 1,307 share the rest. Among the 192 bond funds measured here, VSDB behaves like 254.1 holdings against a median of 236.4 — close to the median. Across 5 quarterly filings VSDB has become less concentrated: it behaved like 187.5 at 2025-06-30 and 254.1 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 390 positions were added and 135 dropped; 57.7% of the weight moved. the United States is the largest country at 78.17% of the portfolio, across 56 countries in the filing.
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 2025
5Between 2025-06-30 and 2026-06-30, VSDB went from behaving like 187.5 equally weighted positions to 254.1 — 36% more, while its top ten went from 13.1% to 13.95% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-06-30 | 1,317 | 254.1 | 13.95% | 1.88% |
| 2026-03-31 | 1,064 | 238.3 | 13.1% | 2.31% |
| 2025-12-31 | 682 | 189.3 | 15.47% | 2.24% |
| 2025-09-30 | 549 | 180.2 | 15.77% | 3.18% |
| 2025-06-30 | 374 | 187.5 | 13.1% | 1.92% |
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 2026-06-30The 15 largest of 1,317 positions in VSDB's Form N-PORT, weight as a share of net assets, securities-lending collateral excluded. Every position, every quarter: VSDB.csv.gz.
| # | Position | Weight | Cumulative |
|---|---|---|---|
| 1 | United States Treasury Note/Bond | 1.88% | 1.9% |
| 2 | United States Treasury Note/Bond | 1.64% | 3.5% |
| 3 | United States Treasury Note/Bond | 1.53% | 5.1% |
| 4 | United States Treasury Note/Bond | 1.53% | 6.6% |
| 5 | United States Treasury Note/Bond | 1.48% | 8.1% |
| 6 | United States Treasury Note/Bond | 1.48% | 9.5% |
| 7 | United States Treasury Note/Bond | 1.22% | 10.8% |
| 8 | United States Treasury Bill | 1.14% | 11.9% |
| 9 | United States Treasury Note/Bond | 1.06% | 13.0% |
| 10 | Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 0.99% | 13.9% |
| 11 | United States Treasury Note/Bond | 0.84% | 14.8% |
| 12 | GOVERNMENT NATIONAL MORTGAGE ASSOCIATION | 0.80% | 15.6% |
| 13 | Dominican Republic International Bond | 0.74% | 16.3% |
| 14 | United States Treasury Note/Bond | 0.73% | 17.1% |
| 15 | United States Treasury Note/Bond | 0.69% | 17.8% |
By country of issuer
as of 2026-06-30Share of VSDB's own investments by the issuer country the filer reported (incorporation, not revenue). Each country links to every fund that holds it.
| Country | Share |
|---|---|
| United States | 78.17% |
| United Kingdom | 2.02% |
| France | 1.76% |
| Cayman Islands° | 1.51% |
| Switzerland | 1.45% |
| Japan | 1.24% |
| Türkiye | 1.02% |
| Canada | 0.95% |
Returns the fund reported
2025-04 – 2026-06Monthly total returns from Item B.5 of VSDB's own filings, 15 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: VSDB.json · all funds.
Since the previous filing
2026-03-31 → 2026-06-301,051 positions became 1,306: 390 added (42.7% of the fund at the later date), 135 dropped (35.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 57.7%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of VSDB compared this way, as a feed: changes.xml · all funds: filings received.
| Largest increases | 2026-03-31 | 2026-06-30 | Largest decreases | 2026-03-31 | 2026-06-30 |
|---|---|---|---|---|---|
| United States Treasury Note/Bond | 0.24% | 1.48% | United States Treasury Note/Bond | 0.94% | 0.51% |
| United States Treasury Note/Bond | 0.02% | 0.84% | United States Treasury Note/Bond | 1.35% | 1.06% |
| Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 0.33% | 0.99% | United States Treasury Note/Bond | 0.59% | 0.32% |
| United States Treasury Note/Bond | 0.65% | 1.22% | United States Treasury Note/Bond | 0.57% | 0.31% |
| Dominican Republic International Bond | 0.25% | 0.74% | Suci Second Investment Co | 0.53% | 0.29% |
| Tesla Lease Electric Vehicle Securitization 2025-A LLC | 0.01% | 0.30% | United States Treasury Note/Bond | 0.42% | 0.20% |
New: United States Treasury Note/Bond (1.88%), United States Treasury Note/Bond (1.64%), United States Treasury Note/Bond (1.53%), United States Treasury Note/Bond (1.53%), United States Treasury Note/Bond (1.48%), United States Treasury Bill (1.14%). Gone: United States Treasury Bill (2.31%), Fannie Mae or Freddie Mac (2.30%), Fannie Mae Pool (1.40%), Ginnie Mae II Pool (1.15%), United States Treasury Note/Bond (0.98%), Fannie Mae or Freddie Mac (0.93%).
Asset categories and pricing
as of 2026-06-30| Asset category (as filed) | Share of investments |
|---|---|
| debt DBT | 76.42% |
| mortgage-backed ABS-MBS | 11.92% |
| CDO/CLO ABS-CBDO | 8.87% |
| loan LON | 1.74% |
| short-term investment STIV | 0.99% |
| DCR DCR | 0.05% |
| DFE DFE | 0.01% |
1.0% of VSDB is carried at a quoted market price (fair-value level 1); 0.1% at level 3, priced from the filer's own inputs. Categories and levels are the filer's, from Form N-PORT; what a low level-1 share does and does not mean is in the measure's page.
Derivative exposure and counterparties
as of 2026-06-30A 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 $896M. Notional of an interest-rate or currency swap is not equity exposure.
| Swap counterparty | Notional | % of net assets |
|---|---|---|
| MORGAN STANLEY & CO. LLC | −$15M | -1.62% |
| JPMORGAN CHASE BANK, NATIONAL ASSOCIATION | $0M | 0% |
| ROYAL BANK OF CANADA | $0M | 0% |
4 option positions filed, 2 of them written. The book as filed:
| Type | Side | Strike | Expiry | Underlying |
|---|---|---|---|---|
| Put | Purchased | 57.5 | 2026-07-15 | ICE: (CDX.NA.IG.46.V1) |
| Put | Written | 70 | 2026-07-15 | ICE: (CDX.NA.IG.46.V1) |
| Put | Purchased | 57.5 | 2026-07-15 | ICE: (CDX.NA.IG.46.V1) |
| Put | Written | 70 | 2026-07-15 | ICE: (CDX.NA.IG.46.V1) |
Full detail for every fund that files derivatives: leverage.json (CC BY 4.0).
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of VSDB (254.1). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| FLMI Franklin Dynamic Municipal Bond ETF | 1,336 | 238.2 | 14.33% | 2026-06-30 |
| UITB VictoryShares Core Intermediate Bond ETF | 1,182 | 239.6 | 15.5% | 2026-06-30 |
| DUSB Dimensional Ultrashort Fixed Income ETF | 571 | 240.9 | 9.21% | 2026-07-31 |
| AVSF Avantis Short-Term Fixed Income ETF | 518 | 252.4 | 10.17% | 2026-05-31 |
| KORP American Century Diversified Corporate Bond ETF | 360 | 253.5 | 8.82% | 2026-05-31 |
| LEMB iShares J.P. Morgan EM Local Currency Bond ETF | 487 | 254.9 | 11.7% | 2026-07-31 |
| FLTR VanEck IG Floating Rate ETF | 464 | 260.2 | 9.38% | 2026-07-31 |
| BSV Vanguard Short-Term Bond Index Fund | 3,186 | 260.9 | 8.45% | 2026-06-30 |
| JHCR John Hancock Core Bond ETF | 962 | 262.2 | 12.88% | 2026-06-30 |
| BLV Vanguard Long-Term Bond Index Fund | 2,984 | 263 | 11.11% | 2026-06-30 |
Essays that examine VSDB
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.