VFIFX vs VFMO: 18% overlap
Vanguard Target Retirement 2050 and Vanguard U.S. Momentum Factor ETF share 17.7% 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 3 months apart — VFIFX, VFMO 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 1.8. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
VFIFX and VFMO hold 629 of the same securities. The ten contributing most to the overlap figure:
| Holding | in VFIFX | in VFMO | Δ |
|---|---|---|---|
| CASH | 1.9% | 1.4% | 0.5% |
| GOOGL | 1.5% | 0.9% | 0.6% |
| MU | 0.9% | 0.8% | 0.2% |
| AMD | 0.7% | 1.0% | 0.3% |
| AVGO | 1.3% | 0.6% | 0.7% |
| GOOG | 1.2% | 0.6% | 0.6% |
| LLY | 0.7% | 0.5% | 0.3% |
| JNJ | 0.4% | 1.0% | 0.6% |
| TSLA | 0.9% | 0.4% | 0.4% |
| AMAT | 0.4% | 0.9% | 0.4% |
Where VFIFX and VFMO 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 | VFMO | Δ |
|---|---|---|---|
| Health Care | 6.9% | 22.3% | −15.4pp |
| Industrials | 10.5% | 24.4% | −13.9pp |
| Information Technology | 26.1% | 17.0% | +9.1pp |
| Financials | 14.1% | 6.3% | +7.8pp |
| Unclassified | 6.3% | 0.9% | +5.4pp |
| Energy | 2.8% | 7.7% | −5.0pp |
| Treasuries | 3.6% | 0.0% | +3.6pp |
| Materials | 3.0% | 6.2% | −3.2pp |
Δ is VFIFX minus VFMO, 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
77.9% of VFIFX by weight, held in no part of VFMO.
5.3% of VFMO 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 | VFMO | |
|---|---|---|
| Top 10 holdings | 19.3% | 10.2% |
| Positions held | 6 | 672 |
| Cost per $10,000 held, per year | $8 | $13 |
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 VFMO overlap?
VFIFX and VFMO overlap 17.7% by portfolio weight — moderate overlap. They share 629 holdings. The figure comes from current issuer holdings files (VFIFX as of 2026-03-31, VFMO as of 2026-03-31).
How is the overlap between VFIFX and VFMO 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 VFMO 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 VFMO?
That depends on your goals — we state facts, not advice. At 17.7% overlap, each fund still contributes meaningfully distinct exposure.
What does VFIFX own that VFMO doesn't?
VFIFX holds 6 positions and VFMO holds 672; 16,053 of VFIFX's positions don't appear in VFMO at all, and they are 77.9% of VFIFX by weight.
You probably hold more than two funds
This page compares VFIFX and VFMO. 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 VFIFX vs VFMO
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, VFIFX as of 2026-03-31, VFMO as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.