IDU holdings and overlap
iShares U.S. Utilities ETF (IDU) holds 46 positions in its iShares file of 2026-10-27. Its three largest are NextEra Energy (NEE) at 10.81%, Southern (SO) at 6.71% and Duke Energy (DUK) at 6.11%, and its ten largest make up 52.2% of the fund.
In its iShares file of 2026-10-27, IDU is 89.5% utilities and 10.4% industrials by sector, with none of it in mega-cap tech or in the ten largest US companies by market value. By country, 98.7% of IDU is in the United States, 1.2% in Canada.
What does IDU hold, as of its issuer file of 2026-10-27?
97 of the 594 funds with a page hold NEE, and IDU gives it more weight than all but 2 of them.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | NEE NextEra Energy | 10.81% | |
| 2 | SO Southern | 6.71% | |
| 3 | DUK Duke Energy | 6.11% | |
| 4 | WM Waste Management | 5.52% | |
| 5 | CEG Constellation Energy | 5.22% | |
| 6 | AEP American Electric Power | 4.46% | |
| 7 | D Dominion Energy | 3.61% | |
| 8 | SRE Sempra | 3.49% | |
| 9 | ETR Entergy | 3.18% | |
| 10 | VST Vistra | 3.1% | |
| 11 | XEL Xcel Energy | 3.07% | |
| 12 | RSG Republic Services | 2.95% | |
| 13 | EXC Exelon | 2.88% | |
| 14 | ED Consolidated Edison | 2.66% | |
| 15 | PEG Public Service Enterprise Group | 2.28% | |
| 16 | WEC WEC Energy Group | 2.28% | |
| 17 | AEE Ameren | 1.89% | |
| 18 | PCG PG&E | 1.79% | |
| 19 | ATO Atmos Energy | 1.78% | |
| 20 | AWK American Water Works | 1.76% | |
| 21 | DTE DTE Energy | 1.73% | |
| 22 | CNP CenterPoint Energy | 1.73% | |
| 23 | PPL PPL | 1.66% | |
| 24 | ES Eversource Energy | 1.6% | |
| 25 | FE FirstEnergy | 1.6% | |
| 26 | EIX Edison International | 1.39% | |
| 27 | CMS CMS Energy | 1.35% | |
| 28 | NI NiSource | 1.31% | |
| 29 | EVRG Evergy | 1.23% | |
| 30 | NRG NRG Energy | 1.22% | |
| 31 | LNT Alliant Energy | 1.14% | |
| 32 | CLH Clean Harbors | 1.0% | |
| 33 | GFL GFL Environmental Inc. Subordinate voting shares, no par | 0.99% | |
| 34 | TLN Talen Energy | 0.97% | |
| 35 | PNW Pinnacle West Capital | 0.81% | |
| 36 | WTRG Essential Utilities | 0.76% | |
| 37 | AES AES | 0.67% | |
| 38 | OGE OGE Energy | 0.63% | |
| 39 | UGI UGI | 0.53% | |
| 40 | IDA IDACORP | 0.51% | |
| 41 | NFG National Fuel Gas | 0.48% | |
| 42 | BEPC Brookfield Renewable Corporation Brookfield Renewable | 0.26% | |
| 43 | MDU MDU Resources Group | 0.26% | |
| 44 | CWEN Clearway Energy | 0.25% | |
| 45 | OKLO Oklo | 0.24% | |
| 46 | FRVO Fervo Energy | 0.04% |
The most recent file iShares has published for IDU is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 46 positions IDU holds, with its weight, is in the fund's JSON file. See the other 96 ETFs with a page here that hold NEE, and how their weights compare with the 10.81% IDU gives it.
Category: Utilities, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, 90% of its stocks whose sector is known are utilities companies, each in the sector the site gives that company. How categories are set.
https://tickerinside.com/api/v1/fund/idu.jsonhttps://tickerinside.com/api/v1/fund/idu.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/idu.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/idu.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/idu.jsonHow much money went into or out of IDU?
On the close of Friday, October 23, 2026, IDU neither created nor redeemed shares. Over its last 5 closes, a net outflow of $96 million.
From IDU's own holdings files. Every ETF's latest flows.
How is IDU split by sector and country?
| Sector | Weight | Weight bar |
|---|---|---|
| Utilities | 89.5% | |
| Industrials | 10.4% |
| Country | Weight | Weight bar |
|---|---|---|
| United States | 98.7% | |
| Canada | 1.2% |
From its iShares file of 2026-10-27. How these are measured.
What did IDU hold in its SEC reports since 2019?
IDU's largest position in its SEC filings has been NextEra Energy (NEE) since 2019-10-31: 11.81% then and 11.20% in its report for 2026-07-31, across 27 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-10-31 | 45 | NEE 11.81% | 55.2% |
| 2020-10-31 | 45 | NEE 14.94% | 58.1% |
| 2021-10-31 | 42 | NEE 14.72% | 56.5% |
| 2022-10-31 | 43 | NEE 13.49% | 54.5% |
| 2023-10-31 | 44 | NEE 11.35% | 53.1% |
| 2024-10-31 | 42 | NEE 11.57% | 54.2% |
| 2025-10-31 | 43 | NEE 10.68% | 53.9% |
| 2026-07-31 | 45 | NEE 11.20% | 52.0% |
The first report, then the last of each year, of the 27 reports IDU filed on SEC Form N-PORT from 2019-10-31 to 2026-07-31, each company under its ticker today. Every position of every report is in its quarterly file, and at any date at /api/v1/history/idu/{date}.json. How these are read.
What does IDU duplicate?
The ETF nearest to IDU is VPU: the two hold 88.5% of their weight in common, in the 40 companies both own, and 89.2% of IDU itself is also held there. Owning IDU alongside the ETFs at the top of this table means holding mostly the same companies twice.
| ETF | Overlap by weight | Of IDU held there | Of that ETF in IDU | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| VPU | 88.5% | 89.2% | 94.9% | 40 | |
| XLU | 84.5% | 84.6% | 100.0% | 31 | |
| RSPU | 66.5% | 84.6% | 100.0% | 31 | |
| JXI | 61.4% | 84.6% | 61.6% | 31 | |
| POWR | 50.0% | 78.6% | 50.0% | 31 | |
| SPLV | 28.8% | 78.1% | 29.5% | 26 | |
| IGF | 25.5% | 57.6% | 25.6% | 13 | |
| DVY | 20.2% | 52.1% | 21.0% | 22 | |
| AIPO | 15.5% | 23.0% | 16.0% | 11 | |
| SDY | 12.8% | 42.4% | 12.9% | 14 | |
| SPHD | 12.7% | 21.5% | 14.1% | 9 | |
| LGLV | 12.6% | 38.7% | 12.6% | 16 |
VPU's holdings are from its SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29. AIPO's holdings are from its SEC Form N-PORT for the period ended 2026-08-31, filed 2026-10-26. The other ETFs' holdings are from their issuers' latest files. Check IDU against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to IDU?
SOXX shares 0% of weight with IDU and its weekly returns correlate with it at 0.05 over three years. The table lists the covered ETFs with the least in common with IDU, least shared weight first and, among equals, lowest correlation.
| ETF | Name | Overlap by weight | Correlation, 3y | Companies in both |
|---|---|---|---|---|
| SOXX | iShares Semiconductor ETF | 0.0% | 0.05 | 0 |
| XT | iShares Future Exponential Technologies ETF | 0.0% | 0.15 | 1 |
| MCHI | iShares MSCI China ETF | 0.0% | 0.16 | 0 |
| RING | iShares MSCI Global Gold Miners ETF | 0.0% | 0.24 | 0 |
| PICK | iShares MSCI Global Metals & Mining Producers ETF | 0.0% | 0.25 | 0 |
| PFF | iShares Preferred and Income Securities ETF | 0.0% | 0.29 | 0 |
| SCZ | iShares MSCI EAFE Small-Cap ETF | 0.0% | 0.34 | 0 |
| USRT | iShares Core U.S. REIT ETF | 0.0% | 0.57 | 0 |
Cost, returns and risk
| Expense ratio | 0.37% |
|---|---|
| Dividend yield | 2.56% |
| Total return, 1 year | -0.6% |
| Total return, 3 years cumulative | 50.8% |
| Total return, 5 years cumulative | 46.7% |
| Volatility, annualised | 14.0% |
| Worst fall, 3 years | -14.7% |
| Beta against SPY, 3 years of weekly returns | 0.19 |
| Weight in the ten largest positions | 52.2% |
| Largest single position | 10.8% |
| Assets under management | $1.4B |
Expense ratio, yield and assets are reference data (the expense ratio from IDU's SEC filing of 2026-08-21); the weight in the ten largest positions and the largest single position are from the issuer file of 2026-10-27; every other figure is computed here from weekly closes.
How it moves with the market
| Against | Correlation, 3 years | Covariance, annualised, in percent squared |
|---|---|---|
| SPY | 0.19barely linked | 37 |
| QQQ | 0.04barely linked | 10 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 1.9% |
| 2025 | 15.2% |
| 2024 | 23.2% |
| 2023 | -5.0% |
| 2022 | 0.2% |
One year
Where to go next
- JXI, iShares Global Utilities ETF
- RSPU, Invesco S&P 500 Equal Weight Utilities ETF
- VPU, Vanguard Utilities ETF
- XLU, Utilities Select Sector SPDR Fund
- Run a portfolio x-ray to see what IDU carries once you look through it
- Compare IDU against any other ETF in the builder
Holdings from the most recent file iShares has published, dated 2026-10-27. Prices through 2026-10-28. How every figure here is produced. Measurements, not investment advice.
Cite this page
TickerInside, iShares U.S. Utilities ETF (IDU), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/idu/, CC BY 4.0
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