VTTHX vs VTTSX: 77% overlap
Vanguard Target Retirement 2035 and Vanguard Target Retirement 2060 share 77.2% 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, 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 1.2. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VTTHX and VTTSX hold 16,682 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VTTHX | in VTTSX | Δ |
|---|---|---|---|
| NVDA | 2.5% | 3.3% | 0.8% |
| AAPL | 2.3% | 3.1% | 0.8% |
| CASH | 1.9% | 2.0% | 0.1% |
| MSFT | 1.5% | 2.0% | 0.5% |
| UST-3-10Y | 4.9% | 1.4% | 3.5% |
| AGENCY-MBS | 4.7% | 1.4% | 3.3% |
| AMZN | 1.2% | 1.7% | 0.4% |
| 2330 | 1.2% | 1.6% | 0.4% |
| UST-0-3Y | 3.9% | 1.1% | 2.7% |
| GOOGL | 1.1% | 1.5% | 0.4% |
Where VTTHX 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 | VTTHX | VTTSX | Δ |
|---|---|---|---|
| Treasuries | 11.2% | 3.3% | +7.9pp |
| Information Technology | 19.5% | 26.3% | −6.7pp |
| Unclassified | 11.2% | 6.1% | +5.1pp |
| MBS Pass-Through | 4.7% | 1.4% | +3.3pp |
| Industrials | 7.8% | 10.6% | −2.7pp |
| Corporate — industrial & other | 3.6% | 1.1% | +2.5pp |
| Financials | 12.0% | 14.1% | −2.1pp |
| Consumer Discretionary | 5.7% | 7.6% | −1.9pp |
Δ is VTTHX 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 VTTHX by weight, held in no part of VTTSX.
0.0% of VTTSX 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 | VTTSX | |
|---|---|---|
| Top 10 holdings | 26.4% | 19.3% |
| Positions held | 6 | 6 |
| Cost per $10,000 held, per year | $8 | $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 VTTHX and VTTSX overlap?
VTTHX and VTTSX overlap 77.2% by portfolio weight — substantial duplication if you hold both. They share 16,682 holdings. The figure comes from current issuer holdings files (VTTHX as of 2026-03-31, VTTSX as of 2026-03-31).
How is the overlap between VTTHX and VTTSX 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 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 VTTHX and VTTSX?
That depends on your goals — we state facts, not advice. At 77.2% overlap, most of what one fund holds, the other holds too. Expense ratios: VTTHX 0.08% versus VTTSX 0.08%.
What does VTTHX own that VTTSX doesn't?
VTTHX holds 6 positions and VTTSX holds 6; 0 of VTTHX's positions don't appear in VTTSX at all, and they are 0.0% of VTTHX by weight.
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Related comparisons
Sources: issuer holdings files, VTTHX as of 2026-03-31, VTTSX as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.