IVV vs VTI: 88% overlap
iShares Core S&P 500 ETF and Vanguard Total Stock Market ETF share 88.2% of their portfolios by weight — computed as Σ min(wA, wB) over every holding both funds own.
Different holding dates. These holdings were published 35 days apart — VTI as of 2026-07-31, the rest through 2026-09-04. 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
IVV and VTI hold 493 of the same securities. The ten contributing most to the overlap figure:
| Holding | in IVV | in VTI | Δ |
|---|---|---|---|
| NVDA | 8.4% | 6.4% | 2.0% |
| AAPL | 7.1% | 6.3% | 0.8% |
| MSFT | 5.6% | 4.8% | 0.8% |
| AMZN | 3.8% | 3.7% | 0.1% |
| GOOGL | 3.0% | 2.9% | 0.1% |
| AVGO | 2.5% | 2.6% | 0.0% |
| GOOG | 2.4% | 2.3% | 0.1% |
| META | 2.0% | 1.7% | 0.3% |
| LLY | 1.4% | 1.4% | 0.0% |
| JPM | 1.4% | 1.3% | 0.1% |
Where IVV and VTI 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 | IVV | VTI | Δ |
|---|---|---|---|
| Information Technology | 37.9% | 34.2% | +3.7pp |
| Industrials | 8.3% | 10.1% | −1.8pp |
| Real Estate | 1.8% | 2.3% | −0.5pp |
| Health Care | 9.3% | 9.8% | −0.5pp |
| Financials | 12.3% | 12.8% | −0.5pp |
| Consumer Discretionary | 9.0% | 9.3% | −0.4pp |
| Communication Services | 9.5% | 9.3% | +0.3pp |
| Materials | 1.8% | 2.1% | −0.3pp |
Δ is IVV minus VTI, 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
0.5% of IVV by weight, held in no part of VTI.
11.5% of VTI by weight, held in no part of IVV.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| IVV | VTI | |
|---|---|---|
| Top 10 holdings | 38.0% | 33.3% |
| Positions held | 506 | 3,379 |
| 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 IVV and VTI overlap?
IVV and VTI overlap 88.2% by portfolio weight — substantial duplication if you hold both. They share 493 holdings. The figure comes from current issuer holdings files (IVV as of 2026-09-04, VTI as of 2026-07-31).
How is the overlap between IVV and VTI calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If IVV holds a stock at 6% and VTI 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 IVV and VTI?
That depends on your goals — we state facts, not advice. At 88.2% overlap, most of what one fund holds, the other holds too. Expense ratios: IVV 0.03% versus VTI 0.03%.
What does IVV own that VTI doesn't?
IVV holds 506 positions and VTI holds 3,379; 12 of IVV's positions don't appear in VTI at all, and they are 0.5% of IVV by weight.
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Related comparisons
Sources: issuer holdings files, IVV as of 2026-09-04, VTI as of 2026-07-31. Weights are fractions of each fund. Diagnostics, not advice.