BSV vs VTTHX: 16% overlap
Vanguard Short-Term Bond ETF and Vanguard Target Retirement 2035 share 15.9% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published about 3 months apart — VTTHX as of 2026-03-31, the rest through 2026-06-30. Each fund is compared using its most recent file, so any trading in between shows up as a difference.
You would hold two tickers and get the diversification of 1.8. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
BSV and VTTHX hold 941 of the same securities. The ten contributing most to the overlap figure:
| Holding | in BSV | in VTTHX | Δ |
|---|---|---|---|
| UST-3-10Y | 28.5% | 4.9% | 23.6% |
| UST-0-3Y | 40.9% | 3.9% | 37.1% |
| CASH | 0.7% | 1.9% | 1.2% |
| AGENCY-MBS | 0.2% | 4.7% | 4.6% |
| 46647P | 0.7% | 0.1% | 0.6% |
| 06051G | 0.6% | 0.1% | 0.4% |
| 459058 | 0.6% | 0.1% | 0.6% |
| 68389X | 0.2% | 0.1% | 0.1% |
| 023135 | 0.2% | 0.1% | 0.2% |
| 298785 | 0.6% | 0.1% | 0.5% |
Where BSV and VTTHX differ
Sector weights as a share of each fund, ordered by the size of the gap rather than the size of the sector — two funds that overlap heavily still usually diverge somewhere.
| Sector | BSV | VTTHX | Δ |
|---|---|---|---|
| Treasuries | 69.4% | 11.2% | +58.3pp |
| Information Technology | 0.0% | 19.5% | −19.5pp |
| Unclassified | 0.2% | 11.2% | −11.0pp |
| Corporate — industrial & other | 12.6% | 3.6% | +9.0pp |
| Industrials | 0.0% | 7.8% | −7.8pp |
| Consumer Discretionary | 0.0% | 5.7% | −5.7pp |
| Health Care | 0.0% | 5.2% | −5.2pp |
| MBS Pass-Through | 0.2% | 4.7% | −4.6pp |
Δ is BSV minus VTTHX, in percentage points. Sector data is not published by every issuer, so “Unclassified” is a real category rather than a gap in the table.
What each fund holds alone
0.1% of BSV by weight, held in no part of VTTHX.
78.0% of VTTHX by weight, held in no part of BSV.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| BSV | VTTHX | |
|---|---|---|
| Top 10 holdings | 73.8% | 26.4% |
| Positions held | 960 | 6 |
| Cost per $10,000 held, per year | $3 | $8 |
Cost is the expense ratio applied to $10,000; it excludes any brokerage commission, bid-ask spread or tax consequence. Figures are facts about the funds, not a suggestion about which to hold.
Frequently asked
How much do BSV and VTTHX overlap?
BSV and VTTHX overlap 15.9% by portfolio weight — moderate overlap. They share 941 holdings. The figure comes from current issuer holdings files (BSV as of 2026-06-30, VTTHX as of 2026-03-31).
How is the overlap between BSV and VTTHX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If BSV holds a stock at 6% and VTTHX holds the same stock at 4%, 4% counts as shared. The result is bounded between 0% and 100%, and it is computed after looking through any fund-of-funds to the underlying holdings.
Is it redundant to hold both BSV and VTTHX?
That depends on your goals — we state facts, not advice. At 15.9% overlap, each fund still contributes meaningfully distinct exposure.
What does BSV own that VTTHX doesn't?
BSV holds 960 positions and VTTHX holds 6; 19 of BSV's positions don't appear in VTTHX at all, and they are 0.1% of BSV by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, BSV as of 2026-06-30, VTTHX as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.