iShares U.S. Telecommunications ETF (IYZ) Holdings
IYZ holdings summary
as of Oct 25, 2026- Holdings
- 22 positions listed
- Top 10 weight
- 70.9% of net assets
- Effective holdings
- 10 equal-weight equivalent
- Largest holding
- CSCO 23.02% Cisco Systems, Inc.
- Annual turnover
- 23.3% of the portfolio traded
All IYZ holdings
| # | Name | ||||||
|---|---|---|---|---|---|---|---|
| 1 | CSCO | Cisco Systems, Inc. | Technology | 23.02% | $216.0M | $423.39B | 32.2 |
| 2 | VZ | Verizon Communications Inc. | Communication Services | 11.29% | $105.9M | $186.09B | 11.7 |
| 3 | ANET | Arista Networks, Inc. | Technology | 10.54% | $99.0M | $223.21B | 55.8 |
| 4 | T | AT&T Inc. | Communication Services | 4.50% | $42.2M | $160.62B | 7.7 |
| 5 | SPCX | Space Exploration Technologies Corp. | Industrials | 4.03% | $37.8M | $1.92T | — |
| 6 | MSI | Motorola Solutions, Inc. | Technology | 3.91% | $36.7M | $76.65B | 36.5 |
| 7 | CMCSA | Comcast Corporation | Communication Services | 3.61% | $33.9M | $77.72B | 7.1 |
| 8 | TMUS | T-Mobile US, Inc. | Communication Services | 3.44% | $32.3M | $170.66B | 16.6 |
| 9 | ROKU | Roku, Inc | Communication Services | 3.35% | $31.5M | $22.94B | 65.8 |
| 10 | CIEN | Ciena Corporation | Technology | 3.22% | $30.2M | $47.18B | 74.4 |
| 11 | UI | Ubiquiti Inc. | Technology | 3.19% | $29.9M | $36.37B | 37.9 |
| 12 | GSAT | Globalstar, Inc | Communication Services | 2.86% | $26.8M | $10.67B | — |
| 13 | ECHO | EchoStar Corporation | Communication Services | 2.85% | $26.7M | $24.83B | — |
| 14 | LITE | Lumentum Holdings Inc. | Technology | 2.82% | $26.4M | $74.65B | — |
| 15 | IRDM | Iridium Communications Inc | Communication Services | 2.63% | $24.7M | $4.64B | 49.7 |
| 16 | TIGO | Millicom International Cellular S.A | Communication Services | 2.62% | $24.6M | $13.90B | 20.9 |
| 17 | CHTR | Charter Communications, Inc. | Communication Services | 2.60% | $24.4M | $14.31B | 2.9 |
| 18 | VIAV | Viavi Solutions Inc. | Technology | 2.22% | $20.8M | $8.21B | — |
| 19 | ASTS | AST SpaceMobile Inc | Technology | 1.88% | $17.6M | $15.82B | — |
| 20 | AAOI | Applied Optoelectronics, Inc. | Technology | 1.82% | $17.1M | $6.42B | — |
| 21 | LBTYA | Liberty Global Plc | Communication Services | 1.24% | $11.6M | $2.66B | — |
| 22 | LBTYK | Liberty Global Plc | Communication Services | 0.94% | $8.9M | $2.62B | — |
Weights as a percentage of net assets. Value held = weight × net assets ($938.4M). Market cap and P/E from each company's latest fundamentals (U.S.-listed stocks).
IYZ sector breakdown
| Sector | Weight | Holdings | Largest |
|---|---|---|---|
| Technology | 52.6% | 9 | CSCO, ANET, MSI |
| Communication Services | 41.9% | 12 | VZ, T, CMCSA |
| Industrials | 4.0% | 1 | SPCX |
Sum of the weights of the holdings in each sector.
IYZ top industries
IYZ overlap with other ETFs
| ETF | Fund | Overlap | Shared holdings | Expense ratio |
|---|---|---|---|---|
| QQQ | Invesco QQQ ETF | 5.9% | 5 of 101 | 0.17% |
| SPY | SPDR S&P 500 ETF | 2.0% | 11 of 502 | 0.09% |
| VTI | Vanguard Total Stock Market ETF | 2.0% | 17 of 2,941 | 0.03% |
| DIA | SPDR Dow Jones Industrial Average ETF | 1.2% | 1 of 30 | 0.16% |
| VXUS | Vanguard Total International Stock ETF | 0.0% | 1 of 8,035 | 0.05% |
| IWM | iShares Russell 2000 ETF | 0.0% | 0 of 1,962 | 0.19% |
Overlap = sum over shared holdings of the smaller of the two weights. 100% means identical portfolios.
About the IYZ portfolio
iShares U.S. Telecommunications ETF holds 22 positions. The ten largest make up 70.9% of the fund, so it behaves like a portfolio of about 10 equally weighted stocks. The biggest positions are Cisco Systems, Inc. (23.02%), Verizon Communications Inc. (11.29%), Arista Networks, Inc. (10.54%), AT&T Inc. (4.50%), Space Exploration Technologies Corp. (4.03%).
By sector, Technology is 52.6%, Communication Services is 41.9%, Industrials is 4.0%. Holdings data is from the fund's latest portfolio as reported by EODHD on October 25, 2026; positions change as the fund rebalances.
Related: IYZ chart, IYZ performance, IYZ dividends, IYZ valuation, IYZ overview.
IYZ holdings FAQ
How many holdings does IYZ have?
IYZ holds 22 positions as of October 25, 2026.
What are the top 10 holdings of IYZ?
The ten largest holdings are Cisco Systems, Inc. (23.02%), Verizon Communications Inc. (11.29%), Arista Networks, Inc. (10.54%), AT&T Inc. (4.50%), Space Exploration Technologies Corp. (4.03%), Motorola Solutions, Inc. (3.91%), Comcast Corporation (3.61%), T-Mobile US, Inc. (3.44%), Roku, Inc (3.35%), Ciena Corporation (3.22%). Together they are 70.9% of the fund.
What percentage of IYZ is Cisco Systems, Inc.?
Cisco Systems, Inc. is the largest holding at 23.02% of net assets, about $216.0M of the fund's $938.4M.
Which sector is the largest in IYZ?
Technology is the largest sector at 52.6%, followed by Communication Services (41.9%) and Industrials (4.0%), based on the sectors of the individual holdings.
How concentrated is IYZ?
The top 10 holdings are 70.9% of the fund. By the effective number of holdings (1 divided by the sum of squared weights) IYZ behaves like a portfolio of about 10 equally weighted stocks.