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IYZ vs SPY: Differences, Returns & Fees

IYZ and SPY hold 2% of their weight in the same names, and IYZ returned +31.6% over the year. Net assets: $1.1bn on Oct 9, 2026 for iShares U.S. Telecommunications ETF, and $817.2bn on Oct 8, 2026 for SPDR S&P 500 ETF Trust.

SPY costs 0.28 points a year less; their one-year returns differ by 14.3 points; SPY is far larger, $817.2bn against $1.1bn.

IYZ vs SPY: Differences, Returns & Fees
IYZSPY
Expense ratio0.37%0.09%
Net assets, as of Oct 8, 2026$1.1bn$817.2bn
Total return, 1 year+31.6%+17.3%
What it tracksRussell 1000 Telecommunications RIC 22S&P 500 Index
Holdings in common2%
Top ten holdings, share of the fund71.3%39.1%
Below its high6.4%, high on Jun 2, 2026

Holdings in common uses holdings dated Oct 8, 2026 and Oct 9, 2026.

+31.6%
IYZ total return, 1 year
+17.3%
SPY total return, 1 year
0.37%
IYZ expense ratio
0.09%
SPY expense ratio

What they hold in common

By the books each fund has filed, IYZ and SPY hold 2% of their money in the same securities at the same weight. Above 50%, holding both is close to holding one of them twice. Holdings dated Oct 8, 2026 and Oct 9, 2026.

half

2% in common

Positions both hold, largest shared weight first
Holding IYZ SPY
CISCO SYSTEMS INC 24.08% 0.68%
ARISTA NETWORKS 12.31% 0.33%
VERIZON COMMUNICATIONS INC 9.46% 0.28%
AT&T 3.93% 0.25%
LUMENTUM HOLDINGS 3.82% 0.14%
T MOBILE US INC 2.96% 0.12%
COMCAST CLASS A 2.98% 0.11%
MOTOROLA SOLUTIONS INC 3.30% 0.11%
CIENA 4.12% 0.09%
ECHOSTAR CLASS A 2.81% 0.02%
CHARTER COMMUNICATIONS CLASS A 2.10% 0.02%
Only in IYZ
SPACE EXPLORATION TECHNOLOGIES COR 3.94%
UBIQUITI 3.27%
VIAVI SOLUTIONS 3.10%
ROKU CLASS A 2.79%
APPLIED OPTOELECTRONICS 2.69%
GLOBALSTAR VOTING 2.68%
IRIDIUM COMMUNICATIONS 2.64%
MILLICOM INTERNATIONAL CELLULAR 2.26%
Only in SPY
NVIDIA CORP 8.34%
APPLE INC 7.42%
MICROSOFT CORP 5.80%
AMAZON.COM INC 3.73%
ALPHABET INC CL A 3.06%
BROADCOM INC 2.56%
ALPHABET INC CL C 2.45%
META PLATFORMS INC CLASS A 2.38%

Check overlap with more funds →

On the same fields

IYZ
iShares U.S. Telecommunications ETF
SPY
SPDR S&P 500 ETF Trust
Where it sits Stock ETF Stock ETF
Issuer iShares State Street
What it is Tracks an index Tracks the S&P 500
Total return, 1 year +31.6% +17.3%
Its benchmark over the same days not published +17.3% (VOO)
Gap to its benchmark not available −0.1 pts vs VOO
Expense ratio 0.37% 0.09%
Already in the S&P 500 71.2% 99.8%
Holdings 23 504
Net assets, IYZ as of Oct 9, 2026 and SPY as of Oct 8, 2026 $1.1bn $817.2bn

IYZ and SPY on the fields both publish, as of Oct 9, 2026. Source: ETFIQ.

About IYZ

IYZ tracks an index. Over the year to Oct 9, 2026 it returned +31.6% with distributions reinvested. The prospectus expense ratio is 0.37% a year. By its holdings published by its issuer for Oct 9, 2026, 71% of the fund by weight is stocks the S&P 500 also holds, across 23 positions, with the top ten at 71.3%. It sat 6.4% below its high of Jun 2, 2026 on Oct 9, 2026.

About SPY

SPY tracks the S&P 500. Over the year to Oct 9, 2026 it returned +17.3% with distributions reinvested, against +17.3% for its benchmark, the S&P 500 Index. The prospectus expense ratio is 0.09% a year. By its holdings published by its issuer for Oct 8, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 39.1%.

Questions people ask

Which returned more over the last year, IYZ or SPY?
In the year to Oct 9, 2026, with distributions reinvested, IYZ returned +31.6% and SPY +17.3%.
Which is cheaper, IYZ or SPY?
SPY is cheaper, by 0.28 percentage points a year. That is about $28 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IYZ and SPY overlap with the S&P 500?
By their latest filed holdings, 71% of IYZ and 100% of SPY by weight is stocks the S&P 500 already holds.
Other comparisons
IYZ vs SPMOIYZ vs VTIIYZ vs VOOIYZ vs SPYMMODL vs SPYQLC vs SPYSPY vs VOTESPHB vs SPY
IYZ on its own →SPY on its own →Hold both: look the portfolio through →Rankings →Standards and sources →
Where these figures came from
IYZ filings on SEC EDGAR ↗IYZ prospectus with the expense ratio (SEC) ↗iShares page for IYZ ↗SPY filings on SEC EDGAR ↗State Street website ↗

ETFIQ links to the documents behind every figure; a link is not an endorsement. A comparison is not a recommendation.

How this is computed

Overlap adds up the smaller of the two weights for each security both funds hold.

Cite this pageCitation, APA and Markdown

ETFIQ, IYZ against SPY, data as of Oct 9, 2026. https://etfiq.com/compare/any/iyz-vs-spy

Open data

Free to use with attribution for figures ETFIQ computes; issuer data stays under its owner's terms.