Updated 23 October 2026
In short: SWDA is the iShares Core MSCI World UCITS ETF, accumulating share class. This SWDA review covers what it tracks, how concentrated it is, and how it stacks up against its Vanguard rival. It tracks the MSCI World index, around 1,350 large and mid-sized companies across 23 developed markets in a single holding, for an ongoing charge of 0.20%.
It reinvests dividends automatically. Like other developed-world funds it excludes emerging markets, and it is heavily weighted to the United States. It is one of the most popular core holdings for UK investors, and the main iShares rival to Vanguard’s developed-world funds.
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What SWDA Is and What It Tracks
SWDA follows the MSCI World index, a benchmark of large and mid-cap companies across the world’s developed markets. In practice that is around 1,350 companies from 23 countries, weighted towards the US (roughly 70%), followed by Japan, the UK and the rest of Europe.
It deliberately excludes emerging markets such as China and India. The biggest positions are the familiar US mega-caps like Nvidia, Apple and Microsoft.
In the guide to choosing a global ETF, SWDA is the MSCI World version of the developed-markets option.
SWDA at a Glance
- Full name: iShares Core MSCI World UCITS ETF (Accumulating)
- Index: MSCI World (developed markets)
- Holdings: around 1,350 companies
- Ongoing charge (OCF): 0.20%
- Dividends: accumulating (reinvested inside the fund)
- Domicile: Ireland
- Launched: September 2009
- Ticker / ISIN: SWDA / IE00B4L5Y983
What Does SWDA Hold?
Like all developed-world funds, SWDA is dominated by the US at around 70%, which reflects how large American companies are rather than any deliberate tilt.
Japan is the next biggest, then the UK and Europe. By sector, technology leads, followed by financials, healthcare and industrials.
Because the index is weighted by size, a small group of US mega-caps carries a large share of the fund, so SWDA is more concentrated at the top than “1,350 companies” suggests.
That concentration has helped in the recent tech-led decade and would hurt if those same names fell out of favour.
One structural point: MSCI World holds fewer companies than a comparable FTSE Developed fund, partly because MSCI classifies South Korea as emerging (so it is excluded here) and because index construction differs. In practice the two behave very similarly.
How Has SWDA Performed?
MSCI World is one of the most widely tracked developed-market benchmarks in the world, and SWDA is among the largest ETFs following it.
Its long-run character is steady growth with periodic sharp drawdowns, driven mostly by that heavy US weighting. Investors like it as a “core” because it is broad, cheap, liquid and simple to hold for decades.
As with any fund, its strong recent run reflects US and technology strength and is not a promise about the future.
SWDA Is an Accumulating Fund
SWDA is the accumulating share class, so dividends are reinvested inside the fund automatically and the money compounds without action from the investor. iShares also offers a distributing MSCI World ETF for those who want the income paid as cash.
For how reinvestment and payouts work, see how dividends work. Outside an ISA, remember that an accumulating fund’s reinvested dividends are still taxable and a little more work to track.
What Are the Main Risks?
- US concentration. Around 70% US, with a lot in a few mega-caps, so less diversified than the label implies.
- No emerging markets. Leaves out roughly a tenth of the global market; if emerging economies outperform, SWDA misses it.
- Currency. Global holdings priced in foreign currencies mean sterling moves affect your returns.
- Equity risk. It is 100% shares and will fall in a downturn.
SWDA Pros and Cons
For: a broad, low-cost, highly liquid developed-world core from the largest ETF provider, automatic compounding, and a long, trusted benchmark.
Against: heavy US and big-tech concentration, no emerging markets on its own, a slightly higher fee than VHVG (0.20% versus 0.12%), and the accumulating-fund tax paperwork outside an ISA.
SWDA vs VHVG: How Does It Compare?
Its closest rival is Vanguard’s VHVG. Both are developed-world accumulating funds; SWDA tracks MSCI World and costs 0.20%, VHVG tracks FTSE Developed (which includes South Korea) and costs 0.12%.
On cost VHVG has the edge, though the two perform very similarly. The VHVG review covers the Vanguard option. For emerging markets included in one fund, that points to an All-World tracker like VWRP, covered in the VWRP review. For the wider menu, see best ETFs UK.
How to Buy SWDA
SWDA is listed on the London Stock Exchange and available on most UK platforms.
On Trading 212 it is commission-free to buy, and with no account fee the running cost of a long-term core stays low. How to buy ETFs on Trading 212 walks through sign-up to placing the order.
A Stocks & Shares ISA is the usual wrapper for a buy-and-hold holding like this.
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SWDA Review FAQ
Is SWDA a Good Investment?
That comes down to an investor’s own goals and the rest of their portfolio, something only they or a financial adviser can weigh.
Factually, SWDA offers broad, low-cost exposure to developed-market shares, with the main limitation being that it excludes emerging markets.
Does SWDA Pay Dividends?
Not as cash. SWDA is the accumulating share class, so dividends are reinvested inside the fund automatically. iShares offers a distributing MSCI World ETF for those who want the income paid out.
What Is the Difference Between SWDA and VHVG?
Both are developed-world accumulating funds. SWDA tracks MSCI World and costs 0.20%; VHVG tracks FTSE Developed and costs 0.12%. VHVG also includes South Korea, which MSCI World does not.