IYZ holdings and overlap
iShares U.S. Telecommunications ETF (IYZ) holds 22 positions in its iShares file of 2026-10-27. Its three largest are Cisco (CSCO) at 24.40%, Arista Networks (ANET) at 11.44% and Verizon (VZ) at 10.75%, and its ten largest make up 71.6% of the fund.
In its iShares file of 2026-10-27, IYZ is 54.1% technology and 45.6% communication services by sector, with none of it in mega-cap tech and 3.9% in the ten largest US companies by market value. By country, 97.2% of IYZ is in the United States, 2.4% in Sweden.
What does IYZ hold, as of its issuer file of 2026-10-27?
Cisco is 24.4% of IYZ on its own, against a median largest position of 7.6% across the 20 Thematic funds with a page here. The position IYZ carries furthest above that group is Arista Networks at 11.44% of the fund, a company the median fund in that group does not hold at all.
| Rank | Company | Weight | Weight bar |
|---|---|---|---|
| 1 | CSCO Cisco | 24.4% | |
| 2 | ANET Arista Networks | 11.44% | |
| 3 | VZ Verizon | 10.75% | |
| 4 | T AT&T | 3.99% | |
| 5 | SPCX Space Exploration Technologies Cor | 3.88% | |
| 6 | MSI Motorola Solutions | 3.87% | |
| 7 | CIEN Ciena | 3.47% | |
| 8 | CMCSA Comcast | 3.39% | |
| 9 | LITE Lumentum | 3.23% | |
| 10 | UI Ubiquiti | 3.21% | |
| 11 | TMUS T-Mobile US | 3.15% | |
| 12 | ROKU Roku | 3.08% | |
| 13 | GSAT Globalstar | 2.89% | |
| 14 | ECHO EchoStar | 2.88% | |
| 15 | IRDM Iridium Communications | 2.73% | |
| 16 | VIAV Viavi Solutions | 2.45% | |
| 17 | TIGO Millicom International Cellular S.A. | 2.44% | |
| 18 | CHTR Charter Communications | 2.3% | |
| 19 | AAOI Applied Optoelectronics | 2.04% | |
| 20 | ASTS AST SpaceMobile | 1.99% | |
| 21 | LBTYA Liberty Global | 1.18% | |
| 22 | LBTYK Liberty Global | 0.91% |
The most recent file iShares has published for IYZ is dated 2026-10-27, 1 day before these prices, which is the median for the iShares ETFs covered here. Every one of the 22 positions IYZ holds, with its weight, is in the fund's JSON file. See the other 141 ETFs with a page here that hold CSCO, and how their weights compare with the 24.4% IYZ gives it.
Category: Thematic, set by TickerInside from the ETF's own latest file. In its file of 2026-10-27, two sectors hold 100% of its stocks, technology 54% and communication services 46%, in 22 companies. How categories are set.
https://tickerinside.com/api/v1/fund/iyz.jsonhttps://tickerinside.com/api/v1/fund/iyz.csv=IMPORTDATA("https://tickerinside.com/api/v1/fund/iyz.csv")If your sheet uses a decimal comma: =IMPORTDATA("https://tickerinside.com/api/v1/fund/iyz.csv"; ","; "en_US")curl -s https://tickerinside.com/api/v1/fund/iyz.jsonHow much money went into or out of IYZ?
On the close of Friday, October 23, 2026, $7.6 million went into IYZ, 0.81% of its assets, as it created shares. Over its last 5 closes, a net outflow of $5.3 million.
From IYZ's own holdings files. Every ETF's latest flows.
How is IYZ split by sector and country?
| Sector | Weight | Weight bar |
|---|---|---|
| Technology | 54.1% | |
| Communication services | 45.6% |
| Country | Weight | Weight bar |
|---|---|---|
| United States | 97.2% | |
| Sweden | 2.4% |
From its iShares file of 2026-10-27. How these are measured.
What did IYZ hold in its SEC reports since 2019?
In IYZ's SEC filings, its largest position went from Verizon (VZ) at 23.25% on 2019-09-30 to Cisco (CSCO) at 22.59% on 2026-06-30, across 28 quarterly reports.
| Report | Positions | Largest | Top 10 |
|---|---|---|---|
| 2019-09-30 | 38 | VZ 23.25% | 77.1% |
| 2019-12-31 | 37 | T 22.44% | 75.3% |
| 2020-12-31 | 42 | VZ 22.52% | 77.1% |
| 2021-12-31 | 21 | CSCO 16.93% | 70.6% |
| 2022-12-31 | 21 | CSCO 17.33% | 70.7% |
| 2023-12-31 | 20 | CSCO 16.45% | 71.0% |
| 2024-12-31 | 19 | CSCO 18.62% | 74.5% |
| 2025-12-31 | 22 | CSCO 20.38% | 71.6% |
| 2026-06-30 | 24 | CSCO 22.59% | 69.5% |
The first report, then the last of each year, of the 28 reports IYZ filed on SEC Form N-PORT from 2019-09-30 to 2026-06-30, each company under its ticker today. Every position of every report is in its quarterly file, and at any date at /api/v1/history/iyz/{date}.json. How these are read.
What does IYZ duplicate?
The ETF nearest to IYZ is XTL: the two hold 46.4% of their weight in common, in the 17 companies both own, and 88.4% of IYZ itself is also held there. Owning IYZ alongside the ETFs at the top of this table means about half of the weight is held twice.
| ETF | Overlap by weight | Of IYZ held there | Of that ETF in IYZ | Companies in both | Overlap bar |
|---|---|---|---|---|---|
| XTL | 46.4% | 88.4% | 49.6% | 17 | |
| XLC | 18.4% | 26.6% | 20.8% | 6 | |
| VOX | 17.7% | 39.4% | 17.8% | 12 | |
| FDN | 16.4% | 39.4% | 16.4% | 3 | |
| TDVI | 15.5% | 58.1% | 15.5% | 9 | |
| UFO | 15.3% | 17.8% | 20.4% | 6 | |
| KNCT | 13.5% | 79.6% | 13.6% | 14 | |
| IXP | 12.9% | 29.0% | 13.0% | 7 | |
| IDGT | 12.1% | 46.5% | 12.9% | 5 | |
| VLUE | 11.1% | 45.0% | 11.1% | 5 | |
| CIBR | 9.9% | 36.0% | 9.9% | 2 | |
| PWV | 8.7% | 18.0% | 8.7% | 3 |
VOX's holdings are from its SEC Form N-PORT for the period ended 2026-05-31, filed 2026-07-29. The holdings of FDN and CIBR are from their SEC Form N-PORT filings for the period ended 2026-06-30, filed 2026-08-21. TDVI's holdings are from its SEC Form N-PORT for the period ended 2026-07-31, filed 2026-09-24. UFO's holdings are from its SEC Form N-PORT for the period ended 2026-07-31, filed 2026-09-29. The other ETFs' holdings are from their issuers' latest files. Check IYZ against any ETF in the ETF overlap calculator · how overlap is measured.
What adds something different to IYZ?
RING shares 0% of weight with IYZ and its weekly returns correlate with it at 0.28 over three years. The table lists the covered ETFs with the least in common with IYZ, least shared weight first and, among equals, lowest correlation.
| ETF | Name | Overlap by weight | Correlation, 3y | Companies in both |
|---|---|---|---|---|
| RING | iShares MSCI Global Gold Miners ETF | 0.0% | 0.28 | 0 |
| MCHI | iShares MSCI China ETF | 0.0% | 0.29 | 0 |
| SLVP | iShares MSCI Global Silver and Metals Miners ETF | 0.0% | 0.29 | 0 |
| IYR | iShares U.S. Real Estate ETF | 0.0% | 0.39 | 0 |
| USRT | iShares Core U.S. REIT ETF | 0.0% | 0.41 | 0 |
| REET | iShares Global REIT ETF | 0.0% | 0.44 | 0 |
| SOXX | iShares Semiconductor ETF | 0.0% | 0.47 | 0 |
| PFF | iShares Preferred and Income Securities ETF | 0.0% | 0.47 | 0 |
Cost, returns and risk
| Expense ratio | 0.37% |
|---|---|
| Dividend yield | 1.63% |
| Total return, 1 year | 22.3% |
| Total return, 3 years cumulative | 94.0% |
| Total return, 5 years cumulative | 33.1% |
| Volatility, annualised | 17.3% |
| Worst fall, 3 years | -13.4% |
| Beta against SPY, 3 years of weekly returns | 0.76 |
| Weight in the ten largest positions | 71.6% |
| Largest single position | 24.4% |
| Assets under management | $1.1B |
Expense ratio, yield and assets are reference data (the expense ratio from IYZ's SEC filing of 2026-07-27); 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 | 0.61loosely linked | 147 |
| QQQ | 0.54loosely linked | 182 |
Weekly total returns. What the bands mean · why the covariance is printed.
Year by year
| Year | Total return |
|---|---|
| 2026 | 18.3% |
| 2025 | 29.3% |
| 2024 | 20.5% |
| 2023 | 3.9% |
| 2022 | -30.3% |
One year
Where to go next
- PBD, Invesco Global Clean Energy ETF
- PBW, Invesco WilderHill Clean Energy ETF
- PHO, Invesco Water Resources ETF
- PIO, Invesco Global Water ETF
- Run a portfolio x-ray to see what IYZ carries once you look through it
- Compare IYZ 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. Telecommunications ETF (IYZ), holdings from the issuer's file of 2026-10-27, https://tickerinside.com/etf/iyz/, CC BY 4.0
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