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Data as of Oct 28, 2026.

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IDEV vs SPY: Differences, Returns & Fees

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Over the year to Oct 28, 2026, IDEV returned +13.4% to SPY's +13.6%; 1% of their weight is in the same names.

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Net assets: $34.0bn on Oct 28, 2026 for iShares Core MSCI International Developed Markets ETF, and $814.8bn on Oct 27, 2026 for SPDR S&P 500 ETF Trust.

IDEV on its own →SPY on its own →
At a glance
+13.4%
IDEV total return, 1 year
+13.6%
SPY total return, 1 year
0.04%
IDEV expense ratio
0.09%
SPY expense ratio

Pair scorecard

IDEV costs 0.05 points a year less; their one-year returns differ by 0.2 points; SPY is far larger, $810.0bn against $33.7bn.

IDEV vs SPY: Differences, Returns & Fees
MeasureIDEVSPY
Return
Total return, 1 year+13.4%+13.6%
Drawdown
Below its high4.4%, high on Aug 25, 2026
Benchmark
What it tracksMSCI World ex USA Investable Market IndexS&P 500 Index
Cost and size
Expense ratio0.04%0.09%
Net assets, as of Oct 26, 2026$33.7bn$810.0bn
Holdings
Holdings in common1%
Top ten holdings, share of the fund10.9%38.1%

Holdings in common uses holdings dated Oct 27, 2026. Method

What they share

1%

By the books each fund has filed, IDEV and SPY hold 1% of their money in the same securities at the same weight. Holdings dated Oct 27, 2026.

0 half 100%

half

1% in common

Positions both hold · largest shared weight first IDEV SPY
ARISTOCRAT LEISURE 0.09% 0.10%
MERCK 0.07% 0.53%
ROCHE PS PAR AG 1.18% 0.07%
PRUDENTIAL PLC 0.10% 0.06%
EQT 0.05% 0.05%
HELVETIA BALOISE HOLDING N AG 0.08% 0.05%
DEUTSCHE TELEKOM N AG 0.33% 0.04%
VINCI SA 0.20% 0.04%
ADMIRAL GROUP PLC 0.04% 0.06%
ESSILORLUXOTTICA SA 0.21% 0.04%
PEMBINA PIPELINE 0.10% 0.04%
TELENOR 0.03% 0.10%
Only in one fund ↓
Only in IDEV
ASML HOLDING 2.23%
SHELL 1.06%
HSBC HOLDINGS PLC 1.03%
NOVARTIS AG 1.00%
ROYAL BANK OF CANADA 0.98%
ASTRAZENECA PLC 0.90%
NESTLE SA 0.90%
SAP 0.85%
Only in SPY
NVIDIA CORP 7.92%
APPLE INC 7.61%
MICROSOFT CORP 5.93%
AMAZON.COM INC 3.73%
ALPHABET INC CL A 2.83%
BROADCOM INC 2.45%
ALPHABET INC CL C 2.26%
META PLATFORMS INC CLASS A 2.06%
Check overlap with more funds →

Side by side

IDEV iShares Core MSCI International Developed Markets ETF SPY SPDR S&P 500 ETF Trust
Where it sits Stock ETF Stock ETF
Issuer iShares State Street
What it is Tracks the MSCI International Developed Markets Tracks the S&P 500
Total return, 1 year +13.4% +13.6%
Its benchmark over the same days +14.3% (ACWX) +13.7% (VOO)
Gap to its benchmark −0.9 pts vs ACWX −0.1 pts vs VOO
Expense ratio 0.04% 0.09%
Already in the S&P 500 0.0% 99.8%
Holdings 2317 504
Net assets, IDEV as of Oct 28, 2026 and SPY as of Oct 27, 2026 $34.0bn $814.8bn

IDEV and SPY on the fields both publish, as of Oct 28, 2026. Source: ETFIQ.

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About each fund
IDEV

IDEV tracks the MSCI International Developed Markets. Over the year to Oct 28, 2026 it returned +13.4% with distributions reinvested, against +14.3% for its benchmark, the MSCI ACWI ex USA Index. The prospectus expense ratio is 0.04% a year. By its holdings published by its issuer for Oct 27, 2026, 0% of the fund by weight is stocks the S&P 500 also holds, across 2,317 positions, with the top ten at 10.9%. It sat 4.4% below its high of Aug 25, 2026 on Oct 28, 2026.

SPY

SPY tracks the S&P 500. Over the year to Oct 28, 2026 it returned +13.6% with distributions reinvested, against +13.7% 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 27, 2026, 100% of the fund by weight is stocks the S&P 500 also holds, across 504 positions, with the top ten at 38.1%.

Questions people ask

Which returned more over the last year, IDEV or SPY?
In the year to Oct 28, 2026, with distributions reinvested, IDEV returned +13.4% and SPY +13.6%.
Which is cheaper, IDEV or SPY?
IDEV is cheaper, by 0.05 percentage points a year. That is about $5 on $10,000 held for a year. Fees come from each fund's prospectus.
How much do IDEV and SPY overlap with the S&P 500?
By their latest filed holdings, 0% of IDEV and 100% of SPY by weight is stocks the S&P 500 already holds.
Other comparisons
IDEV vs IVVIDEV vs VTIIDEV vs VOOIDEV vs SPYMIXUS vs SPYSPY vs VEUSCHF vs SPYSPY vs VXUS
Where to next
IDEV on its own →SPY on its own →Hold both: look the portfolio through →Rankings →IDEV dividend history →IDEV holdings →SPY dividend history →SPY holdings →Standards and sources →
Sources and dates
IDEV filings on SEC EDGAR ↗
IDEV prospectus with the expense ratio (SEC) ↗
iShares page for IDEV ↗
SPY filings on SEC EDGAR ↗
State Street website ↗

Links are sources, not endorsements. 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.

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ETFIQ, IDEV against SPY, data as of Oct 28, 2026. https://etfiq.com/compare/any/idev-vs-spy

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