257 essays 1,087 funds measured independent · not paid by any fund or issuer we cover

Overlap · from SEC filings

QQQM vs XLU: what actually overlaps

QQQM and XLU: 1.18% of a dollar ends up in the same companies either way (SEC Form N-PORT, 2026-05-31 and 2026-06-30), across 4 securities the two funds both hold. Every free comparison tool can list the tickers in common; this weights them, which is the part that decides whether owning both changes anything.

1.18%Overlap by weight
4Shared holdings
48.6Combined effective holdings
+16.6 vs QQQM alone

The short version

Held alone, QQQM behaves like 32 equally weighted positions and XLU like 20. Held together in equal size they behave like 48.6 — 16.6 more than QQQM on its own, even at 1.18% overlap.

Overlap here is the sum, over securities both funds hold, of the smaller of the two weights: the share of a dollar that sits in the same company either way. Matching is on CUSIP. Figures are as of each fund's own reporting date (2026-05-31 and 2026-06-30), which do not always align.

Not 50/50, or holding a third fund alongside these two? The portfolio calculator runs this same math for any weights, across up to 12 funds.

Side by side

as filed
QQQMXLU
Assets$97B$23B
Holdings10333
Effective holdings3220
Top ten weight47.43%57.59%
Largest position8.15%12.9%
Priced at market (Level 1)99.68%100%
Reporting date2026-05-312026-06-30

Each fund on its own: QQQM · XLU

Where the overlap actually is

4

The ten shared positions that account for the most of it, with what each fund holds of its own. Shared is the lesser of the two — the part that is held in common either way. Where the two columns diverge, one fund is making a larger bet on that company than the other, and holding both does not average it away.

CompanyQQQMXLUShared
Constellation Energy Corp. 0.457% 5.595% 0.457%
American Electric Power Co., Inc. 0.3% 5.246% 0.3%
Xcel Energy Inc. 0.217% 3.533% 0.217%
Exelon Corp. 0.205% 3.362% 0.205%

What the difference is made of

98.82% · 82.26%

98.82% of QQQM sits in companies XLU does not hold at all, and 82.26% of XLU in companies QQQM does not hold. The largest of each, by weight in its own fund:

Only in QQQM (98.82%)
  • NVIDIA Corp.
  • Apple Inc.
  • Microsoft Corp.
  • Micron Technology, Inc.
  • Amazon.com, Inc.
Only in XLU (82.26%)
  • NextEra Energy Inc
  • Southern Co/The
  • Duke Energy Corp
  • Sempra
  • Dominion Energy Inc

By country of issuer

2026-05-31 · 2026-06-30

Where each fund's money sits by the issuer country its filer reported (incorporation, not revenue). Two funds can share companies and still differ here, and a pair that looks diversified by name can be one country twice.

CountryQQQMXLUDifference
United States 95.48% 100.00% −4.52
Ireland° 1.85% 0.00% +1.85
Netherlands° 1.19% 0.00% +1.19
Canada 0.80% 0.00% +0.80
United Kingdom 0.40% 0.00% +0.40
Cayman Islands° 0.25% 0.00% +0.25
Not stated in filing 0.03% 0.00% +0.03

What each fund did last quarter

Each fund's newest filing against its previous one. A pair whose overlap is rising or falling does so because of these moves; the figures are the same ones on each fund's page and in its feed.

FundPeriodPositionsAddedDroppedTurnoverLargest increase
QQQM 2026-02-28 → 2026-05-31 102 → 103 4311.3% Micron Technology, Inc. 2.5% → 4.79%
XLU 2026-03-31 → 2026-06-30 32 → 33 102.3% Dominion Energy Inc 3.71% → 4.23%

Written about this pair

1

This page is the measurement. These essays argue about what it means, with the figures as they stood when each was written.

Related comparisons

8

Other pairs involving QQQM or XLU, ordered by how much they overlap.

PairOverlapCombined effective
QQQ vs QQQM 91.56% 33.2
VPU vs XLU 89.74% 21.9
QQQM vs VUG 62.67% 26.4
QQQM vs XLK 55.5% 24.2
QQQM vs VOO 54.2% 42
QQQM vs VGT 53.73% 23.4
IVV vs QQQM 53.41% 42
QQQM vs VTI 47.73% 46.9

Sources and limits

Computed from SEC Form N-PORT (NPORT-P), the portfolio report every registered US fund files. Positions below 0.001% of net assets are dropped; weights are normalised to each filing's own total.

Unit investment trusts including SPY and DIA do not file N-PORT, so no overlap can be computed for them. Where a comparison is missing from this site, that is usually why rather than an oversight.

Overlap says what is held in common, not what will move together. Two funds with no shared holdings can still fall together, and the effective holding count takes no account of correlation. All 275 pairs are in the concentration dataset, and every fund's own history is on its fund page.