VTI vs VTTSX: 54% overlap
Vanguard Total Stock Market ETF and Vanguard Target Retirement 2060 share 53.5% 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 — VTTSX 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 1.5. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VTI and VTTSX hold 3,495 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VTI | in VTTSX | Δ |
|---|---|---|---|
| NVDA | 6.3% | 3.3% | 3.0% |
| AAPL | 5.8% | 3.1% | 2.8% |
| MSFT | 3.8% | 2.0% | 1.8% |
| AMZN | 3.2% | 1.7% | 1.5% |
| GOOGL | 2.9% | 1.5% | 1.4% |
| AVGO | 2.5% | 1.3% | 1.2% |
| GOOG | 2.3% | 1.2% | 1.1% |
| MU | 1.8% | 0.9% | 0.8% |
| META | 1.7% | 0.9% | 0.8% |
| TSLA | 1.6% | 0.9% | 0.8% |
Where VTI and VTTSX 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 | VTI | VTTSX | Δ |
|---|---|---|---|
| Information Technology | 35.2% | 26.3% | +8.9pp |
| Unclassified | 0.2% | 6.1% | −5.9pp |
| Treasuries | 0.0% | 3.3% | −3.3pp |
| Communication Services | 9.1% | 6.0% | +3.1pp |
| Health Care | 9.5% | 7.0% | +2.6pp |
| Financials | 11.9% | 14.1% | −2.3pp |
| Consumer Discretionary | 9.2% | 7.6% | +1.6pp |
| MBS Pass-Through | 0.0% | 1.4% | −1.4pp |
Δ is VTI minus VTTSX, 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
0.0% of VTI by weight, held in no part of VTTSX.
43.5% of VTTSX by weight, held in no part of VTI.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VTI | VTTSX | |
|---|---|---|
| Top 10 holdings | 31.9% | 19.3% |
| Positions held | 3,495 | 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 VTI and VTTSX overlap?
VTI and VTTSX overlap 53.5% by portfolio weight — substantial duplication if you hold both. They share 3,495 holdings. The figure comes from current issuer holdings files (VTI as of 2026-06-30, VTTSX as of 2026-03-31).
How is the overlap between VTI and VTTSX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VTI holds a stock at 6% and VTTSX 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 VTI and VTTSX?
That depends on your goals — we state facts, not advice. At 53.5% overlap, each fund still contributes meaningfully distinct exposure.
What does VTI own that VTTSX doesn't?
VTI holds 3,495 positions and VTTSX holds 6; 0 of VTI's positions don't appear in VTTSX at all, and they are 0.0% of VTI by weight.
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Related comparisons
Sources: issuer holdings files, VTI as of 2026-06-30, VTTSX as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.