ITOT vs VYM: 34% overlap
iShares Core S&P Total U.S. Stock Market ETF and Vanguard High Dividend Yield ETF share 34.3% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
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
ITOT and VYM hold 587 of the same securities. The ten contributing most to the overlap figure:
| Holding | in ITOT | in VYM | Δ |
|---|---|---|---|
| AVGO | 2.6% | 7.3% | 4.7% |
| JPM | 1.3% | 3.4% | 2.1% |
| XOM | 0.9% | 2.4% | 1.5% |
| JNJ | 0.9% | 2.5% | 1.7% |
| ABBV | 0.6% | 1.8% | 1.2% |
| CSCO | 0.6% | 1.9% | 1.3% |
| CAT | 0.6% | 2.0% | 1.4% |
| BAC | 0.6% | 1.6% | 1.0% |
| UNH | 0.5% | 1.6% | 1.0% |
| CVX | 0.5% | 1.3% | 0.8% |
Where ITOT and VYM 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 | ITOT | VYM | Δ |
|---|---|---|---|
| Information Technology | 35.2% | 16.7% | +18.4pp |
| Financials | 12.7% | 20.9% | −8.3pp |
| Communication Services | 8.7% | 3.1% | +5.7pp |
| Energy | 3.5% | 8.5% | −5.0pp |
| Consumer Staples | 4.4% | 8.0% | −3.6pp |
| Utilities | 2.2% | 5.7% | −3.5pp |
| Health Care | 9.7% | 13.1% | −3.4pp |
| Industrials | 10.1% | 13.2% | −3.1pp |
Δ is ITOT minus VYM, 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
65.7% of ITOT by weight, held in no part of VYM.
0.4% of VYM by weight, held in no part of ITOT.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| ITOT | VYM | |
|---|---|---|
| Top 10 holdings | 32.7% | 26.0% |
| Positions held | 2,440 | 606 |
| Cost per $10,000 held, per year | $3 | $4 |
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 ITOT and VYM overlap?
ITOT and VYM overlap 34.3% by portfolio weight — moderate overlap. They share 587 holdings. The figure comes from current issuer holdings files (ITOT as of 2026-07-23, VYM as of 2026-06-30).
How is the overlap between ITOT and VYM calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If ITOT holds a stock at 6% and VYM 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 ITOT and VYM?
That depends on your goals — we state facts, not advice. At 34.3% overlap, each fund still contributes meaningfully distinct exposure.
What does ITOT own that VYM doesn't?
ITOT holds 2,440 positions and VYM holds 606; 1,852 of ITOT's positions don't appear in VYM at all, and they are 65.7% of ITOT by weight.
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Related comparisons
Sources: issuer holdings files, ITOT as of 2026-07-23, VYM as of 2026-06-30. Weights are fractions of each fund. Diagnostics, not advice.