Fund · Vanguard Total Bond Market Index Fund · measured from SEC filings
BND holdings
BND reports 17,397 holdings and behaves like 877.7 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 28 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: 0.9% at a quoted market price (level 1), 30 issuer countries, 0.3% restricted securities.
What stands out
as of 2026-06-30BND's largest investment is Vanguard Market Liquidity Fund at 0.9% of net assets. US Treasury N/B and US Treasury N/B follow; the three together are 1.78%. Ten companies are 4.63% of the fund; the other 17,387 share the rest. Among the 192 bond funds measured here, BND behaves like 877.7 holdings against a median of 236.4 — 3.7 times the median. Across 28 quarterly filings BND has become less concentrated: it behaved like 656.9 at 2019-09-30 and 877.7 at 2026-06-30. Between the 2026-03-31 and 2026-06-30 filings 530 positions were added and 467 dropped; 7.4% 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
28Between 2019-09-30 and 2026-06-30, BND went from behaving like 656.9 equally weighted positions to 877.7 — 34% more, while its top ten went from 5.77% to 4.63% of net assets. Read across the funds on the concentration-over-time table.
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2026-06-30 | 17,397 | 877.7 | 4.63% | 0.9% |
| 2026-03-31 | 17,361 | 854.6 | 4.83% | 1.07% |
| 2025-12-31 | 17,486 | 839.7 | 4.85% | 1.14% |
| 2025-09-30 | 17,730 | 880.5 | 4.65% | 0.91% |
| 2025-06-30 | 17,689 | 885.2 | 4.56% | 0.8% |
| 2025-03-31 | 17,794 | 912 | 4.43% | 0.58% |
| 2024-12-31 | 17,881 | 862.2 | 4.86% | 0.81% |
| 2024-09-30 | 17,875 | 886.6 | 4.75% | 0.98% |
Earlier filings (20 more, back to 2019-09-30)
| Period | Holdings | Effective | Top 10 | Largest |
|---|---|---|---|---|
| 2024-06-30 | 17,780 | 923.8 | 4.4% | 0.57% |
| 2024-03-31 | 17,812 | 937.4 | 4.42% | 0.53% |
| 2023-12-31 | 17,881 | 930.1 | 4.5% | 0.57% |
| 2023-09-30 | 17,923 | 906.8 | 4.55% | 0.54% |
| 2023-06-30 | 17,895 | 877.6 | 4.94% | 0.69% |
| 2023-03-31 | 17,693 | 860.7 | 4.99% | 0.6% |
| 2022-12-31 | 17,352 | 863.2 | 4.81% | 0.63% |
| 2022-09-30 | 17,286 | 847.1 | 4.86% | 0.64% |
| 2022-06-30 | 17,249 | 844.5 | 4.87% | 0.63% |
| 2022-03-31 | 17,237 | 773.1 | 5.86% | 1.09% |
| 2021-12-31 | 18,586 | 678.5 | 6.29% | 1.81% |
| 2021-09-30 | 18,705 | 675.6 | 6.25% | 1.92% |
| 2021-06-30 | 18,652 | 593.4 | 6.62% | 2.46% |
| 2021-03-31 | 18,638 | 531.8 | 7.13% | 2.86% |
| 2020-12-31 | 18,463 | 509.2 | 7.11% | 3.01% |
| 2020-09-30 | 18,384 | 495.2 | 7.26% | 3.14% |
| 2020-06-30 | 18,200 | 450.7 | 7.26% | 3.51% |
| 2020-03-31 | 17,796 | 789.5 | 5.02% | 1.17% |
| 2019-12-31 | 17,620 | 822.4 | 4.98% | 1.39% |
| 2019-09-30 | 17,480 | 656.9 | 5.77% | 2.2% |
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.
Compared with, in the essays
5Overlap with other funds
20Measured against every other fund on this site, from the same filings. Combined effective holdings is how the pair behaves held in equal size.
| With | Overlap | Shared | Combined effective |
|---|---|---|---|
| BND vs AGG | 63.53% | 7,456 | 837.5 |
| BND vs VWO | 0.9% | 1 | 154.9 |
| BND vs BNDX | 0.9% | 1 | 1782.5 |
| BND vs VTV | 0.76% | 1 | 345.2 |
| BND vs VXUS | 0.73% | 1 | 824.2 |
| BND vs VIG | 0.56% | 1 | 222.5 |
| BND vs VT | 0.55% | 1 | 502.2 |
| BND vs VOO | 0.34% | 1 | 194.3 |
| BND vs VTI | 0.27% | 1 | 248.2 |
| BND vs VEA | 0.17% | 1 | 748.1 |
10 more pairs, down to 0% overlap
| With | Overlap | Shared | Combined effective |
|---|---|---|---|
| BND vs VGT | 0.11% | 1 | 59.3 |
| BND vs VUG | 0.09% | 1 | 77.4 |
| BND vs ITOT | 0% | 0 | 245.4 |
| BND vs IVV | 0% | 0 | 194.6 |
| BND vs QQQ | 0% | 0 | 131.4 |
| BND vs QQQM | 0% | 0 | 123.5 |
| BND vs SCHD | 0% | 0 | 123.6 |
| BND vs SGOV | 0% | 0 | 67.3 |
| BND vs SMH | 0% | 0 | 54.8 |
| BND vs XLK | 0% | 0 | 64 |
Largest positions, as filed
as of 2026-06-30The 15 largest of 17,397 positions in BND'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 | Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 0.92% | 0.9% |
| 2 | United States Treasury Note/Bond | 0.48% | 1.4% |
| 3 | United States Treasury Note/Bond | 0.42% | 1.8% |
| 4 | United States Treasury Note/Bond | 0.42% | 2.2% |
| 5 | United States Treasury Note/Bond | 0.42% | 2.7% |
| 6 | United States Treasury Note/Bond | 0.42% | 3.1% |
| 7 | United States Treasury Note/Bond | 0.41% | 3.5% |
| 8 | United States Treasury Note/Bond | 0.41% | 3.9% |
| 9 | United States Treasury Note/Bond | 0.41% | 4.3% |
| 10 | United States Treasury Note/Bond | 0.40% | 4.7% |
| 11 | United States Treasury Note/Bond | 0.39% | 5.1% |
| 12 | United States Treasury Note/Bond | 0.37% | 5.5% |
| 13 | United States Treasury Note/Bond | 0.36% | 5.8% |
| 14 | United States Treasury Note/Bond | 0.36% | 6.2% |
| 15 | United States Treasury Note/Bond | 0.35% | 6.5% |
By country of issuer
as of 2026-06-30Share of BND'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 | 93.32% |
| Not stated in filing | 1.42% |
| Canada | 1.08% |
| United Kingdom | 0.83% |
| Japan | 0.54% |
| Mexico | 0.36% |
| Germany | 0.32% |
| Netherlands° | 0.19% |
Returns the fund reported
2019-07 – 2026-06Monthly total returns from Item B.5 of BND's own filings, 84 months on record. Not computed here and not from a price feed.
Cross-checked against a series computed separately from prices: median difference 0.04 percentage points over 84 months, which is roughly the distributions. Every month with the filing it came from: BND.json · all funds.
Since the previous filing
2026-03-31 → 2026-06-3016,735 positions became 16,798: 530 added (5.3% of the fund at the later date), 467 dropped (4.1% at the earlier date). Half the sum of all weight changes, a turnover proxy: 7.4%. Positions are matched on identifiers, so a security whose identifier changed shows as one drop and one add. Every filing of BND 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 | 0.18% | 0.41% | Vanguard Cmt Funds-Vanguard Market Liquidity Fund | 1.07% | 0.90% |
| United States Treasury Note/Bond | 0.10% | 0.25% | United States Treasury Note/Bond | 0.19% | 0.15% |
| United States Treasury Note/Bond | 0.11% | 0.24% | United States Treasury Note/Bond | 0.17% | 0.14% |
| United States Treasury Note/Bond | 0.05% | 0.14% | United States Treasury Note/Bond | 0.18% | 0.16% |
| United States Treasury Note/Bond | 0.14% | 0.22% | United States Treasury Note/Bond | 0.15% | 0.14% |
| United States Treasury Note/Bond | 0.07% | 0.14% | United States Treasury Note/Bond | 0.36% | 0.35% |
New: United States Treasury Note/Bond (0.33%), United States Treasury Note/Bond (0.25%), United States Treasury Note/Bond (0.21%), United States Treasury Note/Bond (0.19%), United States Treasury Note/Bond (0.19%), United States Treasury Note/Bond (0.18%). Gone: United States Treasury Note/Bond (0.31%), United States Treasury Note/Bond (0.29%), United States Treasury Note/Bond (0.23%), United States Treasury Note/Bond (0.21%), United States Treasury Note/Bond (0.19%), United States Treasury Note/Bond (0.18%).
Asset categories and pricing
as of 2026-06-30| Asset category (as filed) | Share of investments |
|---|---|
| debt DBT | 77.92% |
| mortgage-backed ABS-MBS | 20.77% |
| short-term investment STIV | 0.90% |
| CDO/CLO ABS-CBDO | 0.41% |
0.9% of BND is carried at a quoted market price (fair-value level 1). 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.
Neighbours by effective holdings, debt funds
10Every measured debt fund lined up by how many holdings it behaves like; these sit either side of BND (877.7). Same filings, same arithmetic. Position in this list says nothing about which fund is better.
| Fund | Reports | Behaves like | Top ten | As of |
|---|---|---|---|---|
| JNK State Street(R) SPDR(R) Bloomberg High Yield Bond ETF | 1,199 | 693.3 | 5.14% | 2026-06-30 |
| BBHY JPMorgan BetaBuilders USD High Yield Corporate Bond ETF | 1,609 | 726.7 | 4.93% | 2026-05-31 |
| HYBB iShares BB Rated Corporate Bond ETF | 1,072 | 729.1 | 4.6% | 2026-07-31 |
| CGHM Capital Group Municipal High-Income ETF | 3,498 | 766.5 | 5.67% | 2026-06-30 |
| SCHZ Schwab U.S. Aggregate Bond ETF | 12,327 | 807.8 | 4.92% | 2026-06-30 |
| BHYB Xtrackers USD High Yield BB-B ex Financials ETF | 1,478 | 903.4 | 4.4% | 2026-05-31 |
| ITM VanEck Intermediate Muni ETF | 1,369 | 905 | 3.9% | 2026-07-31 |
| IAGG iShares Core International Aggregate Bond ETF | 8,357 | 906 | 6.08% | 2026-07-31 |
| HYG iShares iBoxx $ High Yield Corporate Bond ETF | 1,322 | 907.5 | 3.57% | 2026-05-31 |
| BWX State Street(R) SPDR(R) Bloomberg International Treasury Bond ETF | 1,372 | 911.5 | 2.77% | 2026-06-30 |
Measures applied in the essays
8Essays that examine BND
19-
Duration and Convexity: What Bond-ETF Investors Get Wrong About Rate Sensitivity
Duration, not credit, is the dominant risk in high-quality bond ETFs — and TLT carries roughly three times BND's. Convexity is real but it is a second-order...
-
Monte Carlo vs the 4% Rule: Simulating Retirement Withdrawals Instead of Assuming Them
The 4% rule is a single conclusion drawn from one country's worst historical sequence; Monte Carlo is a method that asks how often a plan survives across...
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The Diversification Return: Why Rebalancing Can Add Yield Even When Nothing Outperforms
A rebalanced portfolio can earn a higher compound (geometric) return than the weighted average of its parts — even if no single holding beats the others....
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Target-Date Funds vs a DIY Three-Fund Portfolio: What the Convenience Actually Costs
The headline fee gap between a Vanguard target-date fund and a self-built three-fund portfolio is roughly 0.04% a year — real, but far smaller than most...
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BNDX vs BND: Does Adding International Bonds Do Anything for a US Portfolio?
BNDX (international bonds) and BND (US bonds) have delivered nearly identical 10-year CAGRs — 1.5% and 1.4% respectively — which is not a coincidence,...
-
MUB vs BND: When Municipal Bonds Beat Taxable Bonds — The Tax-Equivalent Yield Math
On stated yield, BND (3.95%) pays more than MUB (3.16%) — but MUB's income is exempt from federal tax, so the honest comparison is the tax-equivalent yield,...
-
How to Rebalance Into a Drawdown Without Guessing the Bottom
Rebalancing bands turn a drawdown into a mechanical instruction — trim what held, add to what fell — without requiring you to identify the bottom. Over the...
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LQD vs HYG: Investment-Grade vs High-Yield Credit — What the Spread Actually Pays You For
The credit spread pays you for default risk — but over the last five years, the fund that lost more was the investment-grade one, not the high-yield one....
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TIP vs SCHP vs VTIP: How Inflation-Protected Bond ETFs Differ by Duration
TIP and SCHP hold the full-maturity TIPS ladder and behave almost identically; the only durable difference between them is a 0.15% fee gap that favors SCHP....
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TLT vs IEF vs SHY: Building a Treasury Duration Ladder for Different Rate Scenarios
TLT, IEF, and SHY charge the same 0.15% expense ratio, so this decision is not about cost — it is entirely about how much interest-rate duration you want to...
-
A 2026 Rate-Cut Path: Bonds vs Cash When Yields Fall (SGOV vs BND)
The last five years rewarded cash (SGOV) and punished duration (BND) — but that record was set during a rate-hiking regime, and it is the wrong template for...
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BND vs AGG: The Two Total-Bond Giants — Duration, Yield, and Tracking Difference
BND and AGG charge the identical 0.03% expense ratio, yield within two basis points of each other, and posted max drawdowns within 0.1 percentage points...
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The Three-Fund Portfolio in 2026: What VTI, VXUS, and BND Actually Delivered
Over the trailing five years, VTI did the heavy lifting (12.3% CAGR), VXUS lagged (7.9%), and BND delivered almost nothing (0.1%) — yet that spread is the...
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The Mulden Hybrid Portfolio Framework: Quarterly Review (Q2 2026)
Across the 5-year window ending Q2 2026, the framework's diversifiers (gold) and growth tilt (QQQM) carried the return, while the bond sleeve (BND)...
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Why Sequence-of-Returns Risk Is the Hidden Killer Before Retirement
Sequence-of-returns risk is not about the average return over 30 years — it is about which years the bad ones land in relative to when withdrawals begin....
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Why Most Investors Get Rebalancing Bands Wrong (Daryanani 2008 Revisited)
Daryanani's 2008 paper is widely cited and widely misread. The actual finding was not "5/25" — it was that relative drift bands of roughly 20% of the target...
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What +/-15 vs +/-25 Rebalancing Bands Actually Do — A 15-Year 60/40 Backtest
Over 15.7 years on a 60/40 VOO/BND portfolio, annual rebalancing produced 9.99% CAGR; ±15% drift bands produced 10.23%; ±25% bands produced 10.59%. The...
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Gold vs Bonds in 2026: Two Different Hedges, Two Different Risks
Gold and bonds get grouped as "safe havens", but they hedge different risks — real rates and fiat credibility for gold; nominal yields and growth...
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SGOV and Gold in a 4.5% World: Rethinking the Defensive Sleeve for 2026
With SGOV's distribution yield at 3.9% and the 10-year Treasury at 4.47% (FRED, asof 2026-05-14), the opportunity cost of holding non-yielding gold is...
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.