VFFVX vs VOOG: 32% overlap
Vanguard Target Retirement 2055 and Vanguard S&P 500 Growth ETF share 31.5% 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 — VFFVX 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 1.7. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VFFVX and VOOG hold 148 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VFFVX | in VOOG | Δ |
|---|---|---|---|
| NVDA | 3.3% | 13.7% | 10.3% |
| AAPL | 3.1% | 6.0% | 2.9% |
| MSFT | 2.0% | 7.8% | 5.8% |
| AMZN | 1.7% | 3.5% | 1.8% |
| GOOGL | 1.5% | 5.9% | 4.4% |
| AVGO | 1.3% | 5.0% | 3.7% |
| GOOG | 1.2% | 4.7% | 3.5% |
| MU | 0.9% | 3.7% | 2.7% |
| META | 0.9% | 3.5% | 2.6% |
| TSLA | 0.9% | 2.1% | 1.2% |
Where VFFVX and VOOG 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 | VFFVX | VOOG | Δ |
|---|---|---|---|
| Information Technology | 26.3% | 52.2% | −25.9pp |
| Communication Services | 6.0% | 15.2% | −9.2pp |
| Unclassified | 6.1% | 0.0% | +6.1pp |
| Financials | 14.1% | 8.5% | +5.6pp |
| Industrials | 10.6% | 6.9% | +3.7pp |
| Treasuries | 3.3% | 0.0% | +3.3pp |
| Consumer Staples | 4.1% | 1.1% | +3.0pp |
| Energy | 2.8% | 0.0% | +2.8pp |
Δ is VFFVX minus VOOG, 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
66.7% of VFFVX by weight, held in no part of VOOG.
0.0% of VOOG by weight, held in no part of VFFVX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VFFVX | VOOG | |
|---|---|---|
| Top 10 holdings | 19.2% | 56.4% |
| Positions held | 6 | 148 |
| Cost per $10,000 held, per year | $8 | $7 |
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 VFFVX and VOOG overlap?
VFFVX and VOOG overlap 31.5% by portfolio weight — moderate overlap. They share 148 holdings. The figure comes from current issuer holdings files (VFFVX as of 2026-03-31, VOOG as of 2026-06-30).
How is the overlap between VFFVX and VOOG calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VFFVX holds a stock at 6% and VOOG 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 VFFVX and VOOG?
That depends on your goals — we state facts, not advice. At 31.5% overlap, each fund still contributes meaningfully distinct exposure.
What does VFFVX own that VOOG doesn't?
VFFVX holds 6 positions and VOOG holds 148; 16,534 of VFFVX's positions don't appear in VOOG at all, and they are 66.7% of VFFVX by weight.
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Related comparisons
Sources: issuer holdings files, VFFVX as of 2026-03-31, VOOG as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.