FXNAX vs SCHB: 0% overlap
Fidelity U.S. Bond Index and Schwab U.S. Broad Market ETF 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 about 3 months apart — FXNAX as of 2026-02-28, the rest through 2026-05-31. 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 2.0. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
FXNAX and SCHB hold 1 of the same securities. The ten contributing most to the overlap figure:
| Holding | in FXNAX | in SCHB | Δ |
|---|---|---|---|
| CASH | 1.3% | 0.2% | 1.1% |
Where FXNAX and SCHB 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 | FXNAX | SCHB | Δ |
|---|---|---|---|
| Treasuries | 45.4% | 0.0% | +45.4pp |
| Information Technology | 0.0% | 35.8% | −35.8pp |
| MBS Pass-Through | 16.5% | 0.0% | +16.5pp |
| Corporate — industrial & other | 14.1% | 0.0% | +14.1pp |
| Communication Services | 0.0% | 9.6% | −9.6pp |
| Consumer Discretionary | 0.0% | 9.3% | −9.3pp |
| Industrials | 0.0% | 8.8% | −8.8pp |
| Health Care | 0.0% | 8.4% | −8.4pp |
Δ is FXNAX minus SCHB, 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
99.9% of FXNAX by weight, held in no part of SCHB.
99.9% of SCHB by weight, held in no part of FXNAX.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| FXNAX | SCHB | |
|---|---|---|
| Top 10 holdings | 69.4% | 34.9% |
| Positions held | 1,266 | 2,407 |
| Cost per $10,000 held, per year | $3 | $3 |
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 FXNAX and SCHB overlap?
FXNAX and SCHB overlap 0.2% by portfolio weight — largely distinct portfolios. They share 1 holdings. The figure comes from current issuer holdings files (FXNAX as of 2026-02-28, SCHB as of 2026-05-31).
How is the overlap between FXNAX and SCHB calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If FXNAX holds a stock at 6% and SCHB 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 FXNAX and SCHB?
That depends on your goals — we state facts, not advice. At 0.2% overlap, each fund still contributes meaningfully distinct exposure.
What does FXNAX own that SCHB doesn't?
FXNAX holds 1,266 positions and SCHB holds 2,407; 1,265 of FXNAX's positions don't appear in SCHB at all, and they are 99.9% of FXNAX by weight.
You probably hold more than two funds
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Related comparisons
Sources: issuer holdings files, FXNAX as of 2026-02-28, SCHB as of 2026-05-31. Weights are fractions of each fund. Diagnostics, not advice.