Introductory course
The Basics, the Strategy and ETFs: everything you need to get started, explained step by step. Go at your own pace — you can always go back with the arrow on the left, or jump to a section with the ☰ menu at the top.
How it's organised
💡 In the bottom left you'll also find short "notes", meant for anyone presenting this course to someone else.
Module 1 of 3
Before talking about investing, let's put your personal situation in order: net worth, budget, savings and an emergency fund.
Module 1 — The Basics
It's the real snapshot of your financial health: what you own, minus what you owe. Knowing it lets you understand how much of your net worth is truly liquid — quickly available if needed — and whether the mix between property, investments and cash matches your goals. Assets fall into three categories:
Module 1 — The Basics
Net worth also changes shape over time: its composition changes, its purpose changes, and — towards the end of the journey — even the direction of its movement changes.
The first three stages belong to the accumulation phase: net worth grows. The last is the decumulation phase: the capital built up is gradually drawn down — a topic we'll return to in Module 2, when discussing how to turn it into an income.
Module 1 — The Basics
You can't improve what you don't measure. A budget lets you know precisely how much comes in, how much goes out, and above all how much is left over each month. The secret isn't giving up life's pleasures, but making every pound spent visible.
The 60/20/20 rule is a starting point, not an absolute constraint: adapt it to your own income level and a sustainable lifestyle.
Module 1 — The Basics
The way a budget is split also tends to change across different stages of financial life:
These are typical trends, not fixed rules: what matters is that your budget stays honest with today's real income, not with the income you'd like or expect.
Module 1 — The Basics
The golden rule: aim to save at least 20% of net income. If that's not possible today, start from 5% and increase it every time expenses fall or income rises. It's not the starting figure that counts — it's consistency.
Module 1 — The Basics
Before even thinking about investing, it's essential to build an immediately available cash reserve to cover unexpected expenses — a car breakdown, medical costs, a home repair, a temporary loss of income — without having to touch your investments or resort to expensive borrowing.
Module 1 — The Basics
People approaching financial markets for the first time often carry the same mental image: investing is like "playing the stock market", a risky activity where you can lose everything overnight. This idea comes from confusing two very different things.
Module 1 — The Basics
Investing — with a suitable horizon — is a way to put your capital to work instead of letting it erode. Even with no risk at all, money that just sits there quietly loses purchasing power: inflation, on historical average, runs at around 1.6% a year (Bank of England, last 25 years).
| After… | £10,000 sitting still (real purchasing power) | £10,000 invested (historical average return ~10%) |
|---|---|---|
| 10 years | ≈ £8,530 | ≈ £25,900 |
| 20 years | ≈ £7,280 | ≈ £67,300 |
| 30 years | ≈ £6,210 | ≈ £174,500 |
Module 1 — The Basics
Every investment should have a clear goal. You can have more than one, and they can change over time: investing on your own gives you the freedom to adapt your strategy to your own pace, without being bound by someone else's terms or timeline. Four broad goals come up most often:
Module 1 — The Basics
Beyond the big goals, there are concrete milestones that call for a dedicated plan:
Module 1 — The Basics
Compound interest: Albert Einstein is said to have called it the eighth wonder of the world — probably an apocryphal anecdote, but the idea it describes is real: an investment's gains generate further gains in turn, year after year. At an average annual return of 10% — in line with the long-run historical average of a global equity portfolio — £10,000 invested and never touched behaves like this:
Past returns don't guarantee future results — this is an illustrative example based on the long-run historical average.
Module 1 — The Basics
These swings — technically called volatility — aren't a flaw in the system: they're the normal consequence of the fact that a listed company's price reflects, in real time, the expectations of millions of investors about future profits, interest rates and economic cycles. No one can predict the next wave with certainty: that's why no serious strategy relies on trying to time entries and exits from the market (so-called market timing).
| Size of decline | Historical frequency |
|---|---|
| > 5% | About 3-4 times/year |
| > 10% (Correction) | Roughly every 1.5-2 years |
| > 20% (Bear Market) | Roughly every 6-8 years |
| > 40% (Historic crash) | Roughly every 20-30 years |
Indicative figures for global equity markets over the long run.
Module 1 — The Basics
For decades, building a diversified portfolio was only possible through bank-managed funds — expensive and not very transparent. Today the same result can be achieved by investing in ETFs (Exchange Traded Funds): a basket of securities bought on an exchange exactly like a single share. The simplest way to start is an ETF on Global Equities, via the MSCI World index: that means investing at once in over 1,400 companies across 23 developed countries, for an annual cost of just 0.10-0.20%.
The companies shown are the largest by weight in each geographic area within the MSCI World index: indicative figures, updated periodically.
Module 1 — The Basics
In the UK, the average saver is often steered towards products offered by their own bank. Here's an honest assessment of the main ones:
Module 1 — The Basics
Property is often the first alternative people think of compared to ETFs — but "property" is too broad a label: buying your main home, a second home for holidays, or a buy-to-let for short-term lets are financially very different decisions, even though they involve the same type of asset. Let's look at them separately.
Module 2 of 3
How the Global Equities + Cash strategy works in detail: why it was chosen, how it adapts to you, and how to manage it over time.
Module 2 — The Strategy
The same strategy adapts, simply by changing the proportions, to every stage of life:
The percentages are reference points, not a fixed rule: your ideal allocation also depends on your personal risk tolerance, not just your age.
Module 2 — The Strategy
Many valid investment strategies exist. Here's why SimpleInvest didn't choose the more common alternatives:
Module 2 — The Strategy
Module 2 — The Strategy
The shorter the horizon, the less time there is to recover from a downturn. The biggest historical crises (MSCI World: 2008 around -54%, 2020 around -34%, 2022 around -25%) took as long as 3-5 years for a full recovery.
| Horizon | Global Equities | Cash |
|---|---|---|
| 1 year | 0-15% | 85-100% |
| 3 years | 15-35% | 65-85% |
| 5 years | 40-60% | 40-60% |
| 10 years | 65-85% | 15-35% |
| 20+ years | 85-100% | 0-15% |
Module 2 — The Strategy
Even a modest starting capital makes a huge difference over the long run. There's no need to wait until you have "enough": the best time to start is as soon as possible. Thanks to compounding, every pound invested today works for years — and in turn generates its own return. Monthly contributions add up over time, but it's the initial capital that starts the engine.
Module 2 — The Strategy
Each month (or quarter), you buy a fixed amount of a World ETF, regardless of the market price. This technique — pound-cost averaging — puts volatility to work for you: you automatically buy more units when prices fall and fewer when they rise, lowering your average purchase price over time.
Module 2 — The Strategy
When you reach your goal — retirement, financial independence, a supplementary income — the same strategy supports a gradual drawdown. Instead of cashing everything out at once, you withdraw a portion periodically, keeping the rest invested. The Cash component acts as a buffer: you draw from it first, letting the equities keep working.
A rule of thumb for annual withdrawal from the total portfolio — at these levels, the portfolio has historically maintained its real value over time.
Module 2 — The Strategy
Every 3 or 6 months, the portfolio is brought back to its target composition: if equities have grown a lot, some are sold; if they've fallen, more are bought with the available cash.
No need to predict the market: what's needed is keeping risk under control over time, with a rule decided in advance, not one made in the panic of the moment.
Module 2 — The Strategy
Module 2 — The Strategy
Having looked at each element on its own, here's how they fit together into a single strategy:
Module 3 of 3
The concrete tools: what they are in detail, which ones to choose and where to buy them, with reference to the London Stock Exchange.
Module 3 — ETFs · London Stock Exchange
An ETF that tracks the MSCI World index is the recommended starting instrument. Generally domiciled in Ireland or Luxembourg, they're listed on the main European exchanges: London, Euronext, Xetra, Milan, Madrid.
| Provider | Ticker | ISIN | TER | AUM |
|---|---|---|---|---|
| iShares Core MSCI World | IWDA.L | IE00B4L5Y983 | 0.20% | ~€119bn |
| SPDR MSCI World | SWRD.L | IE00BFY0GT14 | 0.12% | ~€15bn |
| Xtrackers MSCI World | XDWD.L | IE00BJ0KDQ92 | 0.12% | ~€14bn |
| Amundi MSCI World | LCWD.L | IE000BI8OT95 | 0.12% | ~€13bn |
Always check up-to-date figures on the provider's website before investing — values can change over time.
Module 3 — ETFs · London Stock Exchange
For the Cash component of the strategy, the most common instruments are four: an easy-access savings account, short-term government bonds (e.g. short-dated Gilts), a high-yield savings account offered by some providers, and money-market ETFs that track the SONIA rate — the latter are the instrument this fact sheet focuses on.
| Provider | Ticker |
|---|---|
| Xtrackers GBP Overnight Rate Swap (SONIA) | XSTR.L |
Distributions from this ETF are treated as interest for UK tax purposes, not as dividends — inside an ISA they're tax-free either way.
Module 3 — ETFs · UK
This isn't an exclusive recommendation — always compare costs and services based on your own needs.
Module 3 — ETFs
Before you can start investing, your broker or bank will ask you to complete a mandatory questionnaire (required under the EU MiFID II framework, or equivalent investor-protection rules in your country). It isn't a test to pass, but a tool for your protection: it helps them understand who you are as an investor and offer you products suited to your profile. Answer honestly — answering "strategically" to get a more aggressive profile exposes you to risks you may not actually be prepared for.
Module 3 — ETFs · UK
Tax principles applicable to ETFs in the UK. Rules change over time: always verify official sources before making decisions.
Module 3 — ETFs
The best strategy is the one you can stick to in difficult moments.
Before we wrap up
You've completed the course
Keep exploring the deep-dive guides and simulation tools on simpleinvest.eu, to build and follow your strategy over time.
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