ETF comparison

iShares NASDAQ 100 vs CSPX

iShares NASDAQ 100 UCITS ETF
IE00B53SZB19iShares
iShares Core S&P 500 UCITS ETF
IE00B5BMR087iShares
Figures as of October 22, 2026 (iShares NASDAQ 100) · October 23, 2026 (CSPX)

The comparison in short

iShares NASDAQ 100 (iShares NASDAQ 100 UCITS ETF, IE00B53SZB19) tracks the NASDAQ-100 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 0.30% for iShares NASDAQ 100, 0.23 percentage points less, or about 23 a year on 10,000 invested. CSPX is the larger fund, with USD 154.5bn in assets against USD 28.5bn for iShares NASDAQ 100, about 5.4 times the size. iShares NASDAQ 100 reports 101 holdings and CSPX 504. 7 of the largest holdings of iShares NASDAQ 100 (top 10) and CSPX (top 10) appear in both lists; measured on those positions only, the overlap is at least 34.0%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC. In 2025, iShares NASDAQ 100 returned +20.5% and CSPX +17.6%, a gap of 2.9 percentage points. Over 10 years, iShares NASDAQ 100 returned +20.1% a year and CSPX +15.1% a year. iShares NASDAQ 100 and CSPX both reinvest their income (accumulating share classes). iShares NASDAQ 100 and CSPX both hold the index securities directly (physical replication). Both are domiciled in Ireland. iShares NASDAQ 100 carries a risk indicator (SRRI) of 5 and CSPX of 4, on the 1–7 scale. This is a factual comparison from the fund houses' documents, not investment advice.

Side by side

FigureiShares NASDAQ 100CSPX
ISINIE00B53SZB19IE00B5BMR087
Exchange tickers—CSPX, SXR8, CSSPX
Fund houseiSharesiShares
Total expense ratio (TER)0.30%0.07%
Ongoing charges (KID)0.30%0.07%
Fund sizeUSD 28.5bnUSD 154.5bn
Launch dateJanuary 26, 2010May 19, 2010
ReplicationPhysicalPhysical
DomicileIrelandIreland
Distribution policyAccumulatingAccumulating
Share class currencyUSDUSD
Number of holdings101504
Risk indicator (SRRI)5 / 74 / 7
SFDR classificationArticle 6Article 6
BenchmarkNASDAQ 100 IndexS&P 500 Index

Performance

Calendar-year returns

YeariShares NASDAQ 100CSPXDifference
2025+20.5%+17.6%+2.9
2024+25.3%+24.7%+0.6
2023+54.4%+25.9%+28.5
2022−32.7%−18.4%−14.4
2021+27.0%+28.4%−1.4
2020+48.2%+18.0%+30.2

Annualised returns

PeriodiShares NASDAQ 100CSPXDifference
1 year+16.7%+15.5%+1.2
3 years+26.2%+23.2%+3.0
5 years+13.9%+12.3%+1.6
10 years+20.1%+15.1%+5.0
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

7 of the largest holdings of iShares NASDAQ 100 (top 10) and CSPX (top 10) appear in both lists; measured on those positions only, the overlap is at least 34.0%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

Top 10 holdings of iShares NASDAQ 100

#HoldingWeight
1
NVIDIAIn both
8.15%
2
APPLEIn both
8.10%
3
MICROSOFTIn both
6.17%
4
AMAZON.COM INCIn both
4.30%
5
MICRON TECHNOLOGY
4.26%
6
ADVANCED MICRO DEVICES
3.65%
7
TESLA INCIn both
3.14%
8
META PLATFORMS CLASS AIn both
3.07%
9
ALPHABET CLASS AIn both
3.03%
10
ALPHABET CLASS CIn both
2.83%

Top 10 holdings of CSPX

#HoldingWeight
1
NVIDIAIn both
7.77%
2
APPLEIn both
7.72%
3
MICROSOFTIn both
5.92%
4
AMAZON.COM INCIn both
3.70%
5
ALPHABET CLASS AIn both
2.86%
6
BROADCOM INC
2.33%
7
ALPHABET CLASS CIn both
2.29%
8
META PLATFORMS CLASS AIn both
2.16%
9
TESLA INCIn both
1.60%
10
ELI LILLY
1.55%
Compare the largest holdings of iShares NASDAQ 100 and CSPX in the overlap checker

Sectors and countries

Largest sectors of iShares NASDAQ 100

  1. Information Technology57.0%
  2. Communication14.5%
  3. Consumer Discretionary10.9%
  4. Consumer Staples6.6%
  5. Health Care4.5%
  6. Industrials3.5%
+ 4 more

Largest sectors of CSPX

  1. Information Technology37.9%
  2. Financials12.0%
  3. Health Care9.9%
  4. Communication9.1%
  5. Consumer Discretionary8.9%
  6. Industrials8.0%
+ 5 more

Largest countries of iShares NASDAQ 100

  1. United States97.0%
  2. Canada1.1%
  3. Netherlands1.0%
  4. United Kingdom0.4%
  5. China0.2%
  6. Spain0.2%

Largest countries of CSPX

  1. United States99.9%

Frequently asked questions

What is the difference between iShares NASDAQ 100 and CSPX?

iShares NASDAQ 100 (iShares NASDAQ 100 UCITS ETF, IE00B53SZB19) tracks the NASDAQ-100 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 0.30% for iShares NASDAQ 100, 0.23 percentage points less, or about 23 a year on 10,000 invested. iShares NASDAQ 100 and CSPX both reinvest their income (accumulating share classes). iShares NASDAQ 100 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, iShares NASDAQ 100 or CSPX?

CSPX has the lower total expense ratio (TER): 0.07% a year against 0.30% for iShares NASDAQ 100, 0.23 percentage points less, or about 23 a year on 10,000 invested. Their key information documents state ongoing charges of 0.30% for iShares NASDAQ 100 and 0.07% for CSPX.

Which is bigger, iShares NASDAQ 100 or CSPX?

CSPX is the larger fund, with USD 154.5bn in assets against USD 28.5bn for iShares NASDAQ 100, about 5.4 times the size.

Do iShares NASDAQ 100 and CSPX hold the same companies?

7 of the largest holdings of iShares NASDAQ 100 (top 10) and CSPX (top 10) appear in both lists; measured on those positions only, the overlap is at least 34.0%. Shared holdings include NVIDIA, APPLE, MICROSOFT, ALPHABET CLASS A and AMAZON.COM INC.

How did iShares NASDAQ 100 and CSPX perform in 2025?

In 2025, iShares NASDAQ 100 returned +20.5% and CSPX +17.6%, a gap of 2.9 percentage points. Over 10 years, iShares NASDAQ 100 returned +20.1% a year and CSPX +15.1% a year. Over the past year, iShares NASDAQ 100 returned +16.7% and CSPX +15.5%. Past performance does not predict future returns.

Are iShares NASDAQ 100 and CSPX accumulating or distributing?

iShares NASDAQ 100 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.