IWD vs XLY: 9% overlap
iShares Russell 1000 Value ETF and Consumer Discretionary Select Sector SPDR Fund share 9.3% 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 1.9. Two funds that shared nothing would score 2.0; two identical funds score 1.0.
Top shared holdings
IWD and XLY hold 37 of the same securities. The ten contributing most to the overlap figure:
| Holding | in IWD | in XLY | Δ |
|---|---|---|---|
| AMZN | 5.7% | 23.5% | 17.8% |
| MCD | 0.5% | 4.4% | 3.8% |
| LOW | 0.3% | 3.0% | 2.7% |
| TJX | 0.3% | 4.3% | 4.0% |
| HD | 0.2% | 5.8% | 5.6% |
| GM | 0.2% | 2.0% | 1.8% |
| ORLY | 0.2% | 1.9% | 1.7% |
| F | 0.2% | 1.5% | 1.3% |
| SBUX | 0.1% | 3.2% | 3.0% |
| NKE | 0.1% | 1.3% | 1.2% |
Where IWD and XLY 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 | IWD | XLY | Δ |
|---|---|---|---|
| Consumer Discretionary | 10.2% | 99.9% | −89.7pp |
| Financials | 19.6% | 0.0% | +19.6pp |
| Information Technology | 18.0% | 0.0% | +18.0pp |
| Health Care | 12.7% | 0.0% | +12.7pp |
| Industrials | 11.3% | 0.0% | +11.3pp |
| Consumer Staples | 7.4% | 0.0% | +7.4pp |
| Energy | 6.1% | 0.0% | +6.1pp |
| Utilities | 3.9% | 0.0% | +3.9pp |
Δ is IWD minus XLY, 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
90.6% of IWD by weight, held in no part of XLY.
29.7% of XLY by weight, held in no part of IWD.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| IWD | XLY | |
|---|---|---|
| Top 10 holdings | 27.8% | 68.0% |
| Positions held | 872 | 49 |
| Cost per $10,000 held, per year | $19 | $8 |
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 IWD and XLY overlap?
IWD and XLY overlap 9.3% by portfolio weight — largely distinct portfolios. They share 37 holdings. The figure comes from current issuer holdings files (IWD as of 2026-07-23, XLY as of 2026-07-23).
How is the overlap between IWD and XLY calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If IWD holds a stock at 6% and XLY 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 IWD and XLY?
That depends on your goals — we state facts, not advice. At 9.3% overlap, each fund still contributes meaningfully distinct exposure.
What does IWD own that XLY doesn't?
IWD holds 872 positions and XLY holds 49; 834 of IWD's positions don't appear in XLY at all, and they are 90.6% of IWD by weight.
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Related comparisons
Sources: issuer holdings files, IWD as of 2026-07-23, XLY as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.