BSV vs IWF: 0% overlap
Vanguard Short-Term Bond ETF and iShares Russell 1000 Growth ETF share 0.1% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 27 days apart — BSV as of 2026-06-30, the rest through 2026-07-27. 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
BSV and IWF hold 1 of the same securities. The ten contributing most to the overlap figure:
| Holding | in BSV | in IWF | Δ |
|---|---|---|---|
| CASH | 0.7% | 0.1% | 0.5% |
Where BSV and IWF 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 | IWF | Δ |
|---|---|---|---|
| Treasuries | 69.4% | 0.0% | +69.4pp |
| Information Technology | 0.0% | 53.9% | −53.9pp |
| Communication Services | 0.0% | 16.2% | −16.2pp |
| Corporate — industrial & other | 12.6% | 0.0% | +12.6pp |
| Industrials | 0.0% | 8.5% | −8.5pp |
| Consumer Discretionary | 0.0% | 7.7% | −7.7pp |
| Health Care | 0.0% | 5.7% | −5.7pp |
| Financials | 10.0% | 4.9% | +5.1pp |
Δ is BSV minus IWF, 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
99.3% of BSV by weight, held in no part of IWF.
99.9% of IWF 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 | IWF | |
|---|---|---|
| Top 10 holdings | 73.8% | 56.1% |
| Positions held | 960 | 369 |
| Cost per $10,000 held, per year | $3 | $19 |
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 IWF overlap?
BSV and IWF overlap 0.1% by portfolio weight — largely distinct portfolios. They share 1 holdings. The figure comes from current issuer holdings files (BSV as of 2026-06-30, IWF as of 2026-07-27).
How is the overlap between BSV and IWF 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 IWF 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 IWF?
That depends on your goals — we state facts, not advice. At 0.1% overlap, each fund still contributes meaningfully distinct exposure.
What does BSV own that IWF doesn't?
BSV holds 960 positions and IWF holds 369; 959 of BSV's positions don't appear in IWF at all, and they are 99.3% of BSV by weight.
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Related comparisons
Sources: issuer holdings files, BSV as of 2026-06-30, IWF as of 2026-07-27. Weights are fractions of each fund. Diagnostics, not advice.