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S&P 500 vs NASDAQ-100

CSPXThe biggest 500 US companiesvsCNDXTop 100 US tech & growth companies
The short answer
  • Both hold big US companies, but CNDX (Nasdaq 100) is far more tech-concentrated.
  • CSPX (S&P 500) is broader, steadier and much cheaper (0.07% vs 0.30% a year).
  • Choose CNDX only if you want a deliberate large-cap tech tilt and bigger swings.
Performance
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Shown in USD. Past performance is not a reliable guide to future results.

MetricCSPXCNDX
Annual fee (TER)
0.07%
0.30%
Tracks
S&P 500
NASDAQ-100
Distribution
Accumulating
Accumulating
Domicile
Ireland · UCITS
Ireland · UCITS
Risk
Medium (3/5)
Higher (4/5)
Trades in
LSE (USD)
LSE (USD)
Provider
iShares
iShares
The biggest 500 US companiesCSPX
Tracks S&P 500

When people talk about 'the US stock market', this is basically what they mean. You own tiny slices of the 500 biggest US companies: Apple, Microsoft, Nvidia, Google, Amazon. Around a quarter of your money goes to the top 10 names alone, so the fund leans heavily into US tech.

See full CSPX details →
Top 100 US tech & growth companiesCNDX
Tracks NASDAQ-100

The 100 biggest companies on the US tech-heavy Nasdaq exchange: Apple, Microsoft, Nvidia, Amazon, Meta, Google, Tesla. A more concentrated, more volatile, more growth-tilted bet than the S&P 500. Big winner in good years, brutal in tech downturns.

See full CNDX details →
Tax notes for non-US investors

Both CSPX and CNDXare Irish-domiciled UCITS ETFs, so dividends from their US holdings are taxed at 15% under Ireland's US treaty, rather than the 30% that applies to US-domiciled funds for many non-US investors, and they sit outside US estate tax. Your own local tax still depends on where you live, so check your country's rules; for most investors the main ongoing cost to watch is each fund's annual fee.

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Frequently asked questions

Which is cheaper, CSPX.L or CNDX.L?

CSPX.L is cheaper. CSPX.L charges 0.07% per year and CNDX.L charges 0.30%. Both are inexpensive index funds, but a lower fee compounds in your favour over the long run.

Are CSPX.L and CNDX.L accumulating or distributing?

CSPX.L is accumulating, so dividends are reinvested automatically inside the fund. CNDX.L is accumulating, so dividends are reinvested automatically inside the fund. Accumulating funds suit investors who want hands-off compounding with no cash dividends to reinvest manually.

Are CSPX.L and CNDX.L both UCITS ETFs?

Yes, both are UCITS ETFs (CSPX.L domiciled in Ireland, CNDX.L in Ireland), so both give non-US investors the 15% US dividend withholding rate and sit outside US estate tax, unlike US-domiciled ETFs.

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