FSKAX vs VFMO: 23% overlap
Fidelity Total Market Index and Vanguard U.S. Momentum Factor ETF share 22.8% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 31 days apart — FSKAX as of 2026-02-28, the rest through 2026-03-31. 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
FSKAX and VFMO hold 590 of the same securities. The ten contributing most to the overlap figure:
| Holding | in FSKAX | in VFMO | Δ |
|---|---|---|---|
| JNJ | 0.9% | 1.0% | 0.1% |
| GOOGL | 2.7% | 0.9% | 1.8% |
| CASH | 0.7% | 1.4% | 0.7% |
| MU | 0.7% | 0.8% | 0.1% |
| AVGO | 2.3% | 0.6% | 1.6% |
| GOOG | 2.2% | 0.6% | 1.6% |
| GE | 0.5% | 0.6% | 0.1% |
| CAT | 0.5% | 0.8% | 0.3% |
| XOM | 1.0% | 0.5% | 0.4% |
| AMD | 0.5% | 1.0% | 0.5% |
Where FSKAX 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 | FSKAX | VFMO | Δ |
|---|---|---|---|
| Industrials | 9.6% | 24.4% | −14.8pp |
| Information Technology | 29.9% | 17.0% | +12.9pp |
| Health Care | 9.8% | 22.3% | −12.5pp |
| Communication Services | 9.7% | 3.4% | +6.3pp |
| Financials | 12.2% | 6.3% | +5.9pp |
| Materials | 1.8% | 6.2% | −4.4pp |
| Energy | 3.5% | 7.7% | −4.3pp |
| Unclassified | 4.0% | 0.9% | +3.1pp |
Δ is FSKAX 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
66.9% of FSKAX by weight, held in no part of VFMO.
10.5% of VFMO by weight, held in no part of FSKAX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| FSKAX | VFMO | |
|---|---|---|
| Top 10 holdings | 32.1% | 10.2% |
| Positions held | 3,754 | 672 |
| Cost per $10,000 held, per year | $1 | $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 FSKAX and VFMO overlap?
FSKAX and VFMO overlap 22.8% by portfolio weight — moderate overlap. They share 590 holdings. The figure comes from current issuer holdings files (FSKAX as of 2026-02-28, VFMO as of 2026-03-31).
How is the overlap between FSKAX and VFMO calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If FSKAX 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 FSKAX and VFMO?
That depends on your goals — we state facts, not advice. At 22.8% overlap, each fund still contributes meaningfully distinct exposure.
What does FSKAX own that VFMO doesn't?
FSKAX holds 3,754 positions and VFMO holds 672; 3,163 of FSKAX's positions don't appear in VFMO at all, and they are 66.9% of FSKAX by weight.
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Related comparisons
Sources: issuer holdings files, FSKAX as of 2026-02-28, VFMO as of 2026-03-31. Weights are fractions of each fund. Diagnostics, not advice.