Key differences
- Both track the S&P 500, so their holdings are essentially the same.
- Both charge the same fee of 0.07% a year.
About each fund
CSPX — iShares Core S&P 500 UCITS ETF (Acc)
Tracks the 500 largest US companies, domiciled in Ireland. Often used by non-US investors who want S&P 500 exposure with reinvested dividends and a lower dividend withholding tax than US-domiciled funds.
VUAA — Vanguard S&P 500 UCITS ETF (USD) Accumulating
Vanguard's Irish-domiciled S&P 500 fund in its accumulating share class. A close alternative to CSPX; the main differences are the provider and fund size rather than what it holds.
Fund details checked November 2026. Always confirm current figures on each provider's factsheet.
Questions about CSPX vs VUAA
Is CSPX or VUAA better?
They track the same index (S&P 500), so neither is better at what it holds. Decide on fees, dividend handling and which one your broker offers cheaply.
Which is cheaper, CSPX or VUAA?
They charge the same fee: 0.07% a year.
Can I hold both CSPX and VUAA?
You can, but it adds little: they hold the same companies, so owning both mostly duplicates your exposure.