The short version
- A factsheet is the fund's short summary: what it tracks, what it costs, how it's built and how closely it has followed its index.
- The lines that matter most for a beginner are the index, the yearly charge, physical or synthetic, accumulating or distributing, domicile, and the tracking record.
- The KID (or the older KIID) is the regulated summary. Its 1 to 7 risk indicator is a rough guide, and two documents for the same fund can show different numbers.
- From 8 June 2027 these documents give way to a new "product summary" with a 1 to 10 risk score.
Part of ETF basics. New to ETFs? Start with what an ETF is and how it works.
- 0.20%yearly charge on the example fund, taken from the fund's assets
- 1,250holdings in the fund at the end of September 2026
- 4 or 6its risk rating out of 7, depending on which official document you read
The example: one big global ETF
I’ll use the September 2026 factsheet for iShares Core MSCI World UCITS ETF, US dollar accumulating share class. It managed about $151 billion, and its documents are easy to find. That’s the only reason it’s here.
It’s an example, not a recommendation. Providers such as Vanguard, HSBC, Invesco and SPDR publish similar documents, and the same lines appear on most of them.
Factsheets are marketing material. This one says so on its first page, and tells you to read the KIID or KID and the prospectus before investing.
Objective and index
The fund overview is one sentence: the fund “seeks to track the performance of an index composed of companies from developed countries”.
Benchmark: MSCI World Index (Net). The KID adds that the index covers large and medium-sized companies in developed countries, weighted by free-float market value: the value of shares actually available to investors.
The factsheet says it spans 23 developed countries and about 85% of the listed shares in each. The index is the recipe. Everything else on the factsheet is about how well the fund follows it. Global, FTSE 100 or S&P 500? explains how index choice works.
What it costs
Total Expense Ratio: 0.20%. The KIID calls the same figure the ongoing charges figure (OCF). It’s based on the fund’s fixed annual fee and excludes the cost of trading the fund’s holdings.
The KID splits costs further: 0.20% a year for running the fund and 0.00% for transaction costs. On $10,000, it estimates total costs of $20 in the first year.
There’s no entry or exit charge for people buying on the stock market. You still pay your platform’s fees and the spread when you trade. What an ETF really costs adds it all up, and the fee calculator shows the effect over time.
The fund also lends some of its shares to other institutions for a fee. The KIID says the fund keeps 62.5% of that income, and BlackRock, as lending agent, keeps 37.5%.
How it's built: structure and domicile
- Product structure: Physical. The fund owns shares directly rather than using a swap to get the index return. Physical vs synthetic ETFs explains the difference.
- Methodology: Optimised. Rather than buying every company, it may hold a selection chosen to give a similar return, and can use derivatives. Vanguard notes that buying every company generally tracks more closely than sampling or optimising.
- Domicile: Ireland. The fund is a sub-fund of iShares III plc, an Irish umbrella company. Irish law keeps each sub-fund’s assets separate from the others’. Why can’t I buy US ETFs? explains why UK investors mostly see Irish and Luxembourg funds.
- Depositary: State Street Custodial Services (Ireland) holds the assets. The KID says the manager going bust wouldn’t affect them, but you couldn’t claim from the FSCS if the fund itself couldn’t pay. More in Are ETFs safe?
- UK Reporting Status: Yes. This matters outside an ISA or SIPP. HMRC taxes gains on a non-reporting offshore fund as income rather than capital gains.
- ISA Eligibility and SIPP Available: Yes. It can be held in either tax wrapper.
Income and currency
Use of Income: Accumulating. Dividends are kept in the fund and added to the value of your shares, rather than paid out. The same fund also has distributing share classes. See accumulating vs distributing ETFs.
Share Class Currency: USD. Yet the trading table shows this share class listed on the London Stock Exchange in pounds (ticker SWDA) and in dollars (IWDA), and in Amsterdam in euros.
The currency you trade in doesn’t change what you own. The fund holds companies across the developed world, so your return in pounds depends on exchange rates. The KID warns that currency risk isn’t included in its risk indicator. The fund also offers share classes hedged to pounds or euros, which aim to reduce that effect.
Size and holdings
Net Assets of Fund: $151,362 million at 30 September 2026. Number of Holdings: 1,250.
Top 10 holdings: 27.78% of the fund, led by Nvidia (5.79%), Apple (5.39%) and Microsoft (3.99%). A fund spread across 1,250 companies can still lean heavily on a few.
Sector and country charts show where the money goes. The factsheet notes that country mostly means where each company is domiciled, though sometimes where it does most of its business.
Price to Earnings: 26.22. Price to Book: 4.14. These are valuation ratios: what investors pay for each dollar of company profit and of net assets. The ETF glossary defines both.
Performance and tracking
The factsheet shows calendar-year returns for the share class and its index, in US dollars. A UK investor’s return in pounds would have differed.
| Year | Fund | Index | Difference (points) |
|---|---|---|---|
| 2021 | 21.90% | 21.82% | +0.08 |
| 2022 | −18.03% | −18.14% | +0.11 |
| 2023 | 23.86% | 23.79% | +0.07 |
| 2024 | 18.70% | 18.67% | +0.03 |
| 2025 | 21.16% | 21.09% | +0.07 |
From 2016 to 2025 the fund finished ahead of its index every year, by between 0.03 and 0.22 percentage points, despite its 0.20% charge.
That gap is the tracking difference: the fund’s return minus the index’s. Tracking error measures how much that gap varies over time. Vanguard notes that tax on dividends feeds into tracking difference, and this fund keeps most of its lending income. Both can help a fund edge past its index.
Two warnings from the factsheet itself. Returns are shown at NAV, which may differ from the market price you trade at. And past performance is not a reliable guide to the future.
The KID and its risk indicator
The factsheet is marketing. The KID is the regulated summary: it says it is not marketing material and is required by law.
Risk indicator, 1 to 7. The KID says it shows how likely the product is to lose money because of market movements or because the provider can’t pay you. This fund is rated 4 out of 7, “a medium risk class”. The rating assumes you hold for five years and leaves out currency risk.
The UK KIID for the same share class, dated February 2026, rates it 6, on a scale based on historical data. The two documents calculate risk differently, so compare like with like. Both say the lowest category does not mean risk free.
Performance scenarios. The KID shows what $10,000 might be worth after one and five years. Its unfavourable, moderate and favourable cases use the worst, average and best results of the past ten years. A separate stress case, for extreme markets, shows $7,490 after a year. These are illustrations, not forecasts.
A change is coming. From 8 June 2027, the KID and KIID are replaced by a product summary under the FCA’s new rules. Its risk and return score runs from 1 to 10. A product whose returns have a standard deviation (a measure of how much they swing) of 12% to 16% a year would score 6.
Common questions
- Where do I find a fund’s factsheet and KID?
- On the provider’s website, on the fund’s own page. The KIID for the example says the documents are also available from your broker or adviser.
- How up to date is a factsheet?
- Check the dates. The example’s performance and holdings are at 30 September 2026, its KID is dated 3 September 2026 and its KIID February 2026.
- Is a fund with a lower risk number safe?
- No. The number is a rough guide to how much the price has swung and how likely losses are. This fund, rated 4 out of 7, fell 18.03% in US dollar terms in 2022.
- What’s the difference between the ISIN and the ticker?
- The ISIN, here IE00B4L5Y983, identifies the share class wherever it trades. A ticker, such as SWDA, identifies one listing on one exchange.
This page explains how to read fund documents. The fund used is an example only, not a recommendation, and nothing here is advice about what you should buy. Investments can fall as well as rise, and you may get back less than you put in. Read the full disclaimer.
Sources
- iShares Core MSCI World UCITS ETF USD (Acc) factsheet, September 2026, BlackRock
- iShares Core MSCI World UCITS ETF USD (Acc): Key Information Document, 3 September 2026, BlackRock
- iShares Core MSCI World UCITS ETF USD (Acc): Key Investor Information, 9 February 2026, BlackRock
- iShares Core MSCI World UCITS ETF product page, BlackRock
- What affects index tracking?, Vanguard UK, January 2026
- HS265 Offshore funds, HMRC, GOV.UK
- PS25/20: Final rules for Consumer Composite Investments (PDF), chapter 5 and chapter 8, Financial Conduct Authority, December 2025
Facts checked 13 October 2026.