IWDA vs ISAC
The two products in full comparison: facts, key differences and what to look out for.
Key differences
- Both cost the same per year: 0.20%.
- They track different indices: MSCI World (IWDA) versus MSCI ACWI (ISAC).
- IWDA is significantly larger: ~€126bn versus ~€30bn.
Facts compared
| IWDA | ISAC | |
|---|---|---|
| Full name | iShares Core MSCI World UCITS ETF USD (Acc) | iShares MSCI ACWI UCITS ETF USD (Acc) |
| Ticker | IWDA · EUNL · SWDA | ISAC · IUSQ |
| Index | MSCI World | MSCI ACWI |
| TER (annual cost) | 0.20% | 0.20% |
| Fund size (approx.) | ~€126bn | ~€30bn |
| Replication | Physical (sampling) | Physical (sampling) |
| Distributions | Accumulating | Accumulating |
| Domicile | Ireland | Ireland |
| Base currency | USD | USD |
| Launch year | 2009 | 2011 |
| ISIN | IE00B4L5Y983 | IE00B6R52259 |
What to look out for
Two iShares core holdings with one substantive difference: IWDA covers developed markets only, while ISAC (MSCI ACWI) adds emerging markets, roughly 10% of its portfolio. Cost is identical (0.20%).
IWDA is about four times larger with even greater liquidity. The decision is simple: do you want emerging markets inside one product (ISAC) or would you rather add them separately or not at all (IWDA)?
IWDA
iShares Core MSCI World UCITS ETF USD (Acc)
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ISAC
iShares MSCI ACWI UCITS ETF USD (Acc)
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Data as of September 2026, refreshed periodically. This content is for information only and is not investment advice or a recommendation. Verify the official documents (KID/prospectus) with the provider before any decision.