VTTHX vs XLB: 1% overlap
Vanguard Target Retirement 2035 and Materials Select Sector SPDR Fund share 0.7% 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 4 months apart — VTTHX as of 2026-03-31, the rest through 2026-07-23. 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
VTTHX and XLB hold 26 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VTTHX | in XLB | Δ |
|---|---|---|---|
| LIN | 0.1% | 13.9% | 13.7% |
| CASH | 1.9% | 0.1% | 1.8% |
| NEM | 0.1% | 6.0% | 5.9% |
| FCX | 0.0% | 5.4% | 5.4% |
| SHW | 0.0% | 4.5% | 4.5% |
| CRH | 0.0% | 4.3% | 4.3% |
| ECL | 0.0% | 4.5% | 4.5% |
| APD | 0.0% | 4.7% | 4.7% |
| CTVA | 0.0% | 5.3% | 5.2% |
| NUE | 0.0% | 4.2% | 4.2% |
Where VTTHX and XLB 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 | XLB | Δ |
|---|---|---|---|
| Materials | 2.2% | 99.8% | −97.6pp |
| Information Technology | 19.5% | 0.0% | +19.5pp |
| Financials | 12.0% | 0.0% | +12.0pp |
| Unclassified | 11.2% | 0.0% | +11.2pp |
| Treasuries | 11.2% | 0.0% | +11.2pp |
| Industrials | 7.8% | 0.0% | +7.8pp |
| Consumer Discretionary | 5.7% | 0.0% | +5.7pp |
| Health Care | 5.2% | 0.0% | +5.2pp |
Δ is VTTHX minus XLB, 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
97.4% of VTTHX by weight, held in no part of XLB.
2.7% of XLB 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 | XLB | |
|---|---|---|
| Top 10 holdings | 26.4% | 57.4% |
| Positions held | 6 | 28 |
| 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 XLB overlap?
VTTHX and XLB overlap 0.7% by portfolio weight — largely distinct portfolios. They share 26 holdings. The figure comes from current issuer holdings files (VTTHX as of 2026-03-31, XLB as of 2026-07-23).
How is the overlap between VTTHX and XLB 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 XLB 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 XLB?
That depends on your goals — we state facts, not advice. At 0.7% overlap, each fund still contributes meaningfully distinct exposure.
What does VTTHX own that XLB doesn't?
VTTHX holds 6 positions and XLB holds 28; 16,656 of VTTHX's positions don't appear in XLB at all, and they are 97.4% of VTTHX by weight.
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Related comparisons
Sources: issuer holdings files, VTTHX as of 2026-03-31, XLB as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.