VTIP vs VTSAX: 1% overlap
Vanguard Short-Term Inflation-Protected Securities ETF and Vanguard Total Stock Market Index Admiral share 0.6% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
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
VTIP and VTSAX hold 1 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VTIP | in VTSAX | Δ |
|---|---|---|---|
| CASH | 0.7% | 0.6% | 0.1% |
Where VTIP and VTSAX 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 | VTIP | VTSAX | Δ |
|---|---|---|---|
| Treasuries | 99.3% | 0.0% | +99.3pp |
| Information Technology | 0.0% | 35.2% | −35.2pp |
| Financials | 0.0% | 11.9% | −11.9pp |
| Industrials | 0.0% | 10.4% | −10.4pp |
| Health Care | 0.0% | 9.5% | −9.5pp |
| Consumer Discretionary | 0.0% | 9.2% | −9.2pp |
| Communication Services | 0.0% | 9.1% | −9.1pp |
| Consumer Staples | 0.0% | 4.3% | −4.3pp |
Δ is VTIP minus VTSAX, 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 VTIP by weight, held in no part of VTSAX.
99.4% of VTSAX by weight, held in no part of VTIP.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VTIP | VTSAX | |
|---|---|---|
| Top 10 holdings | 100.0% | 31.9% |
| Positions held | 3 | 3,495 |
| Cost per $10,000 held, per year | $3 | $4 |
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 VTIP and VTSAX overlap?
VTIP and VTSAX overlap 0.6% by portfolio weight — largely distinct portfolios. They share 1 holdings. The figure comes from current issuer holdings files (VTIP as of 2026-06-30, VTSAX as of 2026-06-30).
How is the overlap between VTIP and VTSAX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VTIP holds a stock at 6% and VTSAX 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 VTIP and VTSAX?
That depends on your goals — we state facts, not advice. At 0.6% overlap, each fund still contributes meaningfully distinct exposure.
What does VTIP own that VTSAX doesn't?
VTIP holds 3 positions and VTSAX holds 3,495; 2 of VTIP's positions don't appear in VTSAX at all, and they are 99.3% of VTIP by weight.
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Related comparisons
Sources: issuer holdings files, VTIP as of 2026-06-30, VTSAX as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.