VTTHX vs VTWAX: 66% overlap
Vanguard Target Retirement 2035 and Vanguard Total World Stock Index Admiral share 65.9% 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 1.3. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VTTHX and VTWAX hold 9,494 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VTTHX | in VTWAX | Δ |
|---|---|---|---|
| NVDA | 2.5% | 4.0% | 1.5% |
| AAPL | 2.3% | 3.6% | 1.3% |
| MSFT | 1.5% | 2.4% | 0.9% |
| AMZN | 1.2% | 2.0% | 0.7% |
| 2330 | 1.2% | 1.6% | 0.5% |
| GOOGL | 1.1% | 1.8% | 0.7% |
| AVGO | 1.0% | 1.5% | 0.5% |
| CASH | 1.9% | 1.0% | 0.9% |
| GOOG | 0.9% | 1.4% | 0.5% |
| MU | 0.7% | 1.1% | 0.4% |
Where VTTHX and VTWAX 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 | VTTHX | VTWAX | Δ |
|---|---|---|---|
| Treasuries | 11.2% | 0.0% | +11.2pp |
| Information Technology | 19.5% | 30.1% | −10.6pp |
| Unclassified | 11.2% | 3.8% | +7.5pp |
| MBS Pass-Through | 4.7% | 0.0% | +4.7pp |
| Industrials | 7.8% | 11.5% | −3.6pp |
| Corporate — industrial & other | 3.6% | 0.0% | +3.6pp |
| Consumer Discretionary | 5.7% | 8.6% | −3.0pp |
| Financials | 12.0% | 14.9% | −2.8pp |
Δ is VTTHX minus VTWAX, 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
32.7% of VTTHX by weight, held in no part of VTWAX.
0.6% of VTWAX by weight, held in no part of VTTHX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VTTHX | VTWAX | |
|---|---|---|
| Top 10 holdings | 26.4% | 20.5% |
| Positions held | 6 | 9,600 |
| Cost per $10,000 held, per year | $8 | $9 |
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 VTTHX and VTWAX overlap?
VTTHX and VTWAX overlap 65.9% by portfolio weight — substantial duplication if you hold both. They share 9,494 holdings. The figure comes from current issuer holdings files (VTTHX as of 2026-03-31, VTWAX as of 2026-06-30).
How is the overlap between VTTHX and VTWAX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VTTHX holds a stock at 6% and VTWAX 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 VTTHX and VTWAX?
That depends on your goals — we state facts, not advice. At 65.9% overlap, each fund still contributes meaningfully distinct exposure.
What does VTTHX own that VTWAX doesn't?
VTTHX holds 6 positions and VTWAX holds 9,600; 7,188 of VTTHX's positions don't appear in VTWAX at all, and they are 32.7% of VTTHX by weight.
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Related comparisons
Sources: issuer holdings files, VTTHX as of 2026-03-31, VTWAX as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.