QQQM vs XLB: 1% overlap
Invesco NASDAQ 100 ETF and Materials Select Sector SPDR Fund share 1.3% 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 5 months apart — QQQM as of 2026-02-28, the rest through 2026-07-23. 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
QQQM and XLB hold 1 of the same securities. The ten contributing most to the overlap figure:
| Holding | in QQQM | in XLB | Δ |
|---|---|---|---|
| LIN | 1.3% | 13.9% | 12.6% |
Where QQQM and XLB 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 | QQQM | XLB | Δ |
|---|---|---|---|
| Materials | 1.3% | 99.8% | −98.6pp |
| Information Technology | 48.9% | 0.0% | +48.9pp |
| Communication Services | 15.6% | 0.0% | +15.6pp |
| Consumer Discretionary | 11.9% | 0.0% | +11.9pp |
| Consumer Staples | 8.5% | 0.0% | +8.5pp |
| Health Care | 5.2% | 0.0% | +5.2pp |
| Industrials | 3.0% | 0.0% | +3.0pp |
| Unclassified | 2.7% | 0.0% | +2.7pp |
Δ is QQQM minus XLB, 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
98.4% of QQQM by weight, held in no part of XLB.
86.1% of XLB by weight, held in no part of QQQM.
A large count with a small weight is the usual shape: the positions one fund adds are typically its smallest ones.
Concentration and cost
| QQQM | XLB | |
|---|---|---|
| Top 10 holdings | 46.7% | 57.4% |
| Positions held | 103 | 28 |
| Cost per $10,000 held, per year | $15 | $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 QQQM and XLB overlap?
QQQM and XLB overlap 1.3% by portfolio weight — largely distinct portfolios. They share 1 holdings. The figure comes from current issuer holdings files (QQQM as of 2026-02-28, XLB as of 2026-07-23).
How is the overlap between QQQM and XLB calculated?
As the sum of the smaller weight in each fund, over every holding both funds own: Σ min(wA, wB). If QQQM holds a stock at 6% and XLB 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 QQQM and XLB?
That depends on your goals — we state facts, not advice. At 1.3% overlap, each fund still contributes meaningfully distinct exposure.
What does QQQM own that XLB doesn't?
QQQM holds 103 positions and XLB holds 28; 101 of QQQM's positions don't appear in XLB at all, and they are 98.4% of QQQM by weight.
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Related comparisons
Sources: issuer holdings files, QQQM as of 2026-02-28, XLB as of 2026-07-23. Weights are fractions of each fund. Diagnostics, not advice.