ETF comparison

CSPX vs SPY5

iShares Core S&P 500 UCITS ETF
IE00B5BMR087iShares
State Street® SPDR® S&P® 500 UCITS ETF (Dist)
IE00B6YX5C33State Street
Figures as of October 1, 2026 (CSPX) · October 2, 2026 (SPY5)

The comparison in short

CSPX (iShares Core S&P 500 UCITS ETF, IE00B5BMR087) and SPY5 (State Street® SPDR® S&P® 500 UCITS ETF (Dist), IE00B6YX5C33) both track the S&P 500 index. SPY5 has the lower total expense ratio (TER): 0.03% a year against 0.07% for CSPX, 0.04 percentage points less, or about 4 a year on 10,000 invested. CSPX is the larger fund, with USD 159.1bn in assets against USD 44.4bn for SPY5, about 3.6 times the size. CSPX reports 505 holdings and SPY5 505. 9 of the holdings published by CSPX (top 10) and SPY5 (top 10) appear in both lists; measured on those published positions only, the overlap is at least 38.8%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC. In 2025, CSPX and SPY5 both returned +17.6%. Over 10 years, CSPX returned +15.0% a year and SPY5 +15.0% a year. CSPX reinvests its income (accumulating), while SPY5 pays it out (distributing). CSPX and SPY5 both hold the index securities directly (physical replication). Both are domiciled in Ireland. CSPX and SPY5 both carry a risk indicator (SRRI) of 4 on the 1–7 scale. This is a factual comparison from the fund houses' documents, not investment advice.

Side by side

FigureCSPXSPY5
ISINIE00B5BMR087IE00B6YX5C33
Exchange tickersCSPX, SXR8, CSSPXSPY5, SPX5
Fund houseiSharesState Street
Total expense ratio (TER)0.07%0.03%
Ongoing charges (KID)0.07%0.03%
Fund sizeUSD 159.1bnUSD 44.4bn
Launch dateMay 19, 2010March 19, 2012
ReplicationPhysicalPhysical
DomicileIrelandIreland
Distribution policyAccumulatingDistributing
Share class currencyUSDUSD
Number of holdings505505
Risk indicator (SRRI)4 / 74 / 7
SFDR classificationArticle 6—
BenchmarkS&P 500 IndexS&P 500® Index

Performance

Calendar-year returns

YearCSPXSPY5Difference
2025+17.6%+17.6%0.0
2024+24.7%+24.7%0.0
2023+25.9%+25.9%0.0
2022−18.3%−18.4%+0.1
2021+28.4%+28.3%+0.1

Annualised returns

PeriodCSPXSPY5Difference
1 year+15.3%+20.1%−4.8
3 years+22.7%+20.7%+2.0
5 years+13.3%+12.5%+0.8
10 years+15.0%+15.0%0.0
Returns as published by each fund house, in each share class's currency and net of the fund's charges. The difference is in percentage points. Past performance does not predict future returns.

Holdings

9 of the holdings published by CSPX (top 10) and SPY5 (top 10) appear in both lists; measured on those published positions only, the overlap is at least 38.8%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

Top 10 holdings of CSPX

#HoldingWeight
1
NVIDIAIn both
8.44%
2
APPLEIn both
7.28%
3
MICROSOFTIn both
5.75%
4
AMAZON.COM INCIn both
3.68%
5
ALPHABET CLASS AIn both
3.00%
6
BROADCOM INCIn both
2.47%
7
META PLATFORMS CLASS AIn both
2.42%
8
ALPHABET CLASS CIn both
2.41%
9
MICRON TECHNOLOGYIn both
1.87%
10
ADVANCED MICRO DEVICESIn both
1.52%

Top 10 holdings of SPY5

#HoldingWeight
1
NVIDIA CorporationIn both
8.46%
2
Apple Inc.In both
7.30%
3
Microsoft CorporationIn both
5.76%
4
Amazon.com Inc.In both
3.69%
5
Alphabet Inc. Class AIn both
3.00%
6
Broadcom Inc.In both
2.47%
7
Meta Platforms Inc Class AIn both
2.42%
8
Alphabet Inc. Class CIn both
2.41%
9
Micron Technology Inc.In both
1.88%
10
Advanced Micro Devices Inc.In both
1.52%
Compare every published holding of CSPX and SPY5 in the overlap checker

Sectors and countries

Largest sectors of CSPX

  1. Information Technology40.0%
  2. Financials11.3%
  3. Communication9.8%
  4. Health Care9.0%
  5. Consumer Discretionary8.6%
  6. Industrials8.1%
+ 4 more

Largest sectors of SPY5

  1. Information Technology39.9%
  2. Financials11.4%
  3. Communication Services9.8%
  4. Health Care9.1%
  5. Consumer Discretionary8.6%
  6. Industrials8.1%
+ 5 more

Largest countries of CSPX

  1. United States99.9%

Largest countries of SPY5

  1. United States100.0%

Frequently asked questions

What is the difference between CSPX and SPY5?

CSPX (iShares Core S&P 500 UCITS ETF, IE00B5BMR087) and SPY5 (State Street® SPDR® S&P® 500 UCITS ETF (Dist), IE00B6YX5C33) both track the S&P 500 index. SPY5 has the lower total expense ratio (TER): 0.03% a year against 0.07% for CSPX, 0.04 percentage points less, or about 4 a year on 10,000 invested. CSPX reinvests its income (accumulating), while SPY5 pays it out (distributing). CSPX and SPY5 both hold the index securities directly (physical replication). Both are domiciled in Ireland. This is a factual comparison from the fund houses' documents, not investment advice.

Which is cheaper, CSPX or SPY5?

SPY5 has the lower total expense ratio (TER): 0.03% a year against 0.07% for CSPX, 0.04 percentage points less, or about 4 a year on 10,000 invested. Their key information documents state ongoing charges of 0.07% for CSPX and 0.03% for SPY5.

Which is bigger, CSPX or SPY5?

CSPX is the larger fund, with USD 159.1bn in assets against USD 44.4bn for SPY5, about 3.6 times the size.

Do CSPX and SPY5 hold the same companies?

9 of the holdings published by CSPX (top 10) and SPY5 (top 10) appear in both lists; measured on those published positions only, the overlap is at least 38.8%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

How did CSPX and SPY5 perform in 2025?

In 2025, CSPX and SPY5 both returned +17.6%. Over 10 years, CSPX returned +15.0% a year and SPY5 +15.0% a year. Over the past year, CSPX returned +15.3% and SPY5 +20.1%. Past performance does not predict future returns.

Are CSPX and SPY5 accumulating or distributing?

CSPX is accumulating: it reinvests its income in the fund. SPY5 is distributing: it pays its income out to investors.

Go further

Other comparisons

Figures are read from the documents each fund house publishes (product page, factsheet, key information document, holdings file) and refreshed weekly. Names and tickers identify the products; FundFacts API is independent of every fund house and index provider. This comparison is factual information, not investment advice or a recommendation to buy or sell either fund.