VONG vs XLB: 0% overlap
Vanguard Russell 1000 Growth ETF and Materials Select Sector SPDR Fund share 0.2% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 27 days apart — VONG as of 2026-06-30, the rest through 2026-07-27. 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
VONG and XLB hold 3 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VONG | in XLB | Δ |
|---|---|---|---|
| CASH | 0.3% | 0.1% | 0.2% |
| SHW | 0.1% | 4.6% | 4.6% |
| STLD | 0.0% | 4.0% | 4.0% |
Where VONG 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 | VONG | XLB | Δ |
|---|---|---|---|
| Materials | 0.3% | 99.8% | −99.6pp |
| Information Technology | 54.3% | 0.0% | +54.3pp |
| Communication Services | 16.1% | 0.0% | +16.1pp |
| Industrials | 8.8% | 0.0% | +8.8pp |
| Consumer Discretionary | 8.2% | 0.0% | +8.2pp |
| Health Care | 5.4% | 0.0% | +5.4pp |
| Financials | 4.3% | 0.0% | +4.3pp |
| Consumer Staples | 1.3% | 0.0% | +1.3pp |
Δ is VONG 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
99.7% of VONG by weight, held in no part of XLB.
91.2% of XLB by weight, held in no part of VONG.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VONG | XLB | |
|---|---|---|
| Top 10 holdings | 54.3% | 56.9% |
| Positions held | 370 | 28 |
| Cost per $10,000 held, per year | $6 | $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 VONG and XLB overlap?
VONG and XLB overlap 0.2% by portfolio weight — largely distinct portfolios. They share 3 holdings. The figure comes from current issuer holdings files (VONG as of 2026-06-30, XLB as of 2026-07-27).
How is the overlap between VONG and XLB calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VONG 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 VONG and XLB?
That depends on your goals — we state facts, not advice. At 0.2% overlap, each fund still contributes meaningfully distinct exposure.
What does VONG own that XLB doesn't?
VONG holds 370 positions and XLB holds 28; 367 of VONG's positions don't appear in XLB at all, and they are 99.7% of VONG by weight.
You probably hold more than two funds
This page compares VONG and XLB. Paste your whole portfolio — brokerage, 401(k), IRA — and see the overlap across every fund at once, plus what you actually own underneath them and your own Effective Funds number. Free, no account, nothing stored.
X-ray my portfolio — free →Watch VONG vs XLB
We re-read both funds’ published holdings every weeknight. Leave an address and we'll tell you when what's inside actually changes.
Not sending yet — email alerts are built but switched off, and you'll be among the first when they turn on. No spam, one-click unsubscribe.
Related comparisons
Sources: issuer holdings files, VONG as of 2026-06-30, XLB as of 2026-07-27. Weights are fractions of each fund. Diagnostics, not advice.