VFIFX vs VTWAX: 87% overlap
Vanguard Target Retirement 2050 and Vanguard Total World Stock Index Admiral share 87.2% 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 — VFIFX 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 1.1. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VFIFX and VTWAX hold 9,494 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VFIFX | in VTWAX | Δ |
|---|---|---|---|
| NVDA | 3.3% | 4.0% | 0.7% |
| AAPL | 3.1% | 3.6% | 0.5% |
| MSFT | 2.0% | 2.4% | 0.4% |
| AMZN | 1.7% | 2.0% | 0.3% |
| 2330 | 1.6% | 1.6% | 0.1% |
| GOOGL | 1.5% | 1.8% | 0.3% |
| AVGO | 1.3% | 1.5% | 0.2% |
| GOOG | 1.2% | 1.4% | 0.2% |
| CASH | 1.9% | 1.0% | 0.9% |
| MU | 0.9% | 1.1% | 0.2% |
Where VFIFX 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 | VFIFX | VTWAX | Δ |
|---|---|---|---|
| Information Technology | 26.1% | 30.1% | −4.0pp |
| Treasuries | 3.6% | 0.0% | +3.6pp |
| Unclassified | 6.3% | 3.8% | +2.5pp |
| MBS Pass-Through | 1.5% | 0.0% | +1.5pp |
| Corporate — industrial & other | 1.1% | 0.0% | +1.1pp |
| Consumer Discretionary | 7.5% | 8.6% | −1.1pp |
| Communication Services | 5.9% | 7.0% | −1.0pp |
| Industrials | 10.5% | 11.5% | −1.0pp |
Δ is VFIFX 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
11.2% of VFIFX by weight, held in no part of VTWAX.
0.6% of VTWAX by weight, held in no part of VFIFX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| VFIFX | VTWAX | |
|---|---|---|
| Top 10 holdings | 19.3% | 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 VFIFX and VTWAX overlap?
VFIFX and VTWAX overlap 87.2% by portfolio weight — substantial duplication if you hold both. They share 9,494 holdings. The figure comes from current issuer holdings files (VFIFX as of 2026-03-31, VTWAX as of 2026-06-30).
How is the overlap between VFIFX and VTWAX calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If VFIFX 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 VFIFX and VTWAX?
That depends on your goals — we state facts, not advice. At 87.2% overlap, most of what one fund holds, the other holds too. Expense ratios: VFIFX 0.08% versus VTWAX 0.09%.
What does VFIFX own that VTWAX doesn't?
VFIFX holds 6 positions and VTWAX holds 9,600; 7,188 of VFIFX's positions don't appear in VTWAX at all, and they are 11.2% of VFIFX by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, VFIFX as of 2026-03-31, VTWAX as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.