ETF comparison

IWDA vs CSPX

iShares Core MSCI World UCITS ETF
IE00B4L5Y983iShares
iShares Core S&P 500 UCITS ETF
IE00B5BMR087iShares
Figures as of October 1, 2026 (IWDA) · October 1, 2026 (CSPX)

The comparison in short

IWDA (iShares Core MSCI World UCITS ETF, IE00B4L5Y983) tracks the MSCI World index and CSPX (iShares Core S&P 500 UCITS ETF, IE00B5BMR087) the S&P 500 index. CSPX has the lower total expense ratio (TER): 0.07% a year against 0.20% for IWDA, 0.13 percentage points less, or about 13 a year on 10,000 invested. IWDA reports USD 152.1bn in assets and CSPX USD 159.1bn. IWDA reports 1,250 holdings and CSPX 505. 8 of the holdings published by IWDA (top 10) and CSPX (top 10) appear in both lists; measured on those published positions only, the overlap is at least 26.6%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC. In 2025, IWDA returned +21.2% and CSPX +17.6%, a gap of 3.6 percentage points. Over 10 years, IWDA returned +12.9% a year and CSPX +15.0% a year. IWDA and CSPX both reinvest their income (accumulating share classes). IWDA and CSPX both hold the index securities directly (physical replication). Both are domiciled in Ireland. IWDA and CSPX 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

FigureIWDACSPX
ISINIE00B4L5Y983IE00B5BMR087
Exchange tickersIWDA, SWDA, EUNLCSPX, SXR8, CSSPX
Fund houseiSharesiShares
Total expense ratio (TER)0.20%0.07%
Ongoing charges (KID)0.20%0.07%
Fund sizeUSD 152.1bnUSD 159.1bn
Launch dateSeptember 25, 2009May 19, 2010
ReplicationPhysicalPhysical
DomicileIrelandIreland
Distribution policyAccumulatingAccumulating
Share class currencyUSDUSD
Number of holdings1,250505
Risk indicator (SRRI)4 / 74 / 7
SFDR classificationArticle 6Article 6
BenchmarkMSCI World Index (Net)S&P 500 Index

Performance

Calendar-year returns

YearIWDACSPXDifference
2025+21.2%+17.6%+3.6
2024+18.7%+24.7%−6.0
2023+23.9%+25.9%−2.0
2022−18.0%−18.3%+0.3
2021+21.9%+28.4%−6.5
2020+15.9%+18.0%−2.1

Annualised returns

PeriodIWDACSPXDifference
1 year+14.6%+15.3%−0.7
3 years+21.6%+22.7%−1.1
5 years+11.8%+13.3%−1.5
10 years+12.9%+15.0%−2.1
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

8 of the holdings published by IWDA (top 10) and CSPX (top 10) appear in both lists; measured on those published positions only, the overlap is at least 26.6%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

Top 10 holdings of IWDA

#HoldingWeight
1
NVIDIAIn both
5.86%
2
APPLEIn both
5.36%
3
MICROSOFTIn both
4.00%
4
AMAZON.COM INCIn both
2.65%
5
ALPHABET CLASS AIn both
2.19%
6
META PLATFORMS CLASS AIn both
1.76%
7
ALPHABET CLASS CIn both
1.73%
8
BROADCOM INCIn both
1.72%
9
MICRON TECHNOLOGYIn both
1.37%
10
TESLA INC
1.12%

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 DEVICES
1.52%
Compare every published holding of IWDA and CSPX in the overlap checker

Sectors and countries

Largest sectors of IWDA

  1. Information Technology32.0%
  2. Financials15.6%
  3. Industrials10.8%
  4. Health Care9.1%
  5. Consumer Discretionary8.3%
  6. Communication8.2%
+ 4 more

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 countries of IWDA

  1. United States73.0%
  2. Japan6.0%
  3. Other5.0%
  4. United Kingdom3.3%
  5. Canada3.3%
  6. France2.2%
+ 4 more

Largest countries of CSPX

  1. United States99.9%

Frequently asked questions

What is the difference between IWDA and CSPX?

IWDA (iShares Core MSCI World UCITS ETF, IE00B4L5Y983) tracks the MSCI World index and CSPX (iShares Core S&P 500 UCITS ETF, IE00B5BMR087) the S&P 500 index. CSPX has the lower total expense ratio (TER): 0.07% a year against 0.20% for IWDA, 0.13 percentage points less, or about 13 a year on 10,000 invested. IWDA and CSPX both reinvest their income (accumulating share classes). IWDA and CSPX 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, IWDA or CSPX?

CSPX has the lower total expense ratio (TER): 0.07% a year against 0.20% for IWDA, 0.13 percentage points less, or about 13 a year on 10,000 invested. Their key information documents state ongoing charges of 0.20% for IWDA and 0.07% for CSPX.

Which is bigger, IWDA or CSPX?

IWDA reports USD 152.1bn in assets and CSPX USD 159.1bn.

Do IWDA and CSPX hold the same companies?

8 of the holdings published by IWDA (top 10) and CSPX (top 10) appear in both lists; measured on those published positions only, the overlap is at least 26.6%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

How did IWDA and CSPX perform in 2025?

In 2025, IWDA returned +21.2% and CSPX +17.6%, a gap of 3.6 percentage points. Over 10 years, IWDA returned +12.9% a year and CSPX +15.0% a year. Over the past year, IWDA returned +14.6% and CSPX +15.3%. Past performance does not predict future returns.

Are IWDA and CSPX accumulating or distributing?

IWDA is accumulating: it reinvests its income in the fund. CSPX is accumulating: it reinvests its income in the fund.

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.