Diversification and index funds

Diversification means spreading money across many investments so that no single failure can sink the plan. The more ways it's split, the smaller the damage any one of them can do.

Split 50,000 UAH equally across 500 companies and each holds 50,000 / 500 = 100. If one goes bankrupt and its shares become worthless, the loss is that 100 — just 0.2% of the money. Put the whole 50,000 in that one company instead, and its failure wipes out everything.

The lesson isn't that any particular company will fail; it's that you can't know which one will, so you don't let any single one carry all your money. Spreading turns a possible disaster into a rounding error.

An index fund holds every company on a list chosen by fixed rules — an index, such as the largest companies of a country or the world — in the index's own proportions. Nobody in the fund tries to guess which companies will win.

That makes it both diversified and cheap. Because there's no team picking stocks, there are fewer people to pay, so the yearly fee is usually low — and, as the next lesson shows, a low fee matters a lot over decades. One purchase buys a tiny slice of hundreds of companies at once.

What it is not: a manager picking 20 hot companies, a bet on last year's best sector, or a guarantee of the index's return with no bad years. An index fund tracks its list faithfully — up years and down years alike.

Holding hundreds of companies protects against one of them failing, not against all of them falling together. These are two different risks.

When the whole market drops — a recession, a panic — nearly every company falls at once, and a broad index fund falls with it. The invented share index lost 28% in a single year precisely because it was the market. Diversification across companies does nothing against that.

What does help is spreading in other directions: holding some bonds and cash alongside shares, and buying over time rather than all at once. And the oldest protection of all is time — a long horizon lets a market fall recover before you need the money. A fund with 500 names is still a share fund, and share funds have bad years.

Real diversification spreads money in three directions at once, and more names alone isn't enough:

• Across companies — a broad index of firms from many countries and industries.
• Across kinds of assets — some bonds and cash beside shares, which don't all fall together.
• Across time — a fixed amount every month, so you buy some high and some low and never bet on one day.

What only looks like spreading: five funds that track the same index (one bet, five fees) or ten companies from a single industry (they rise and fall together). And watch your own concentration: Dana's income already depends on the tutoring market, so her savings don't need to bet on it too. Judge diversification by what's actually inside, not by how many lines are on the statement.

Investing in a fund has a sensible order, and the purchase itself comes last:

1. Cover the short term first. Money that may be needed soon — the emergency fund, near goals — shouldn't be invested at all.
2. Set the horizon and the fall you can bear. How long the money stays and how big a drop you'll sit through decide how much goes into shares.
3. Check the broker. Confirm it's in the securities regulator's licence register before sending any money.
4. Compare what the funds hold and charge. Look inside and at the yearly fee, not at the name.
5. Set up the regular purchase. A fixed amount each month, once everything above is settled.

Each step depends on the ones before it. Skipping to the purchase — buying before the cushion exists or before checking the broker — is how good intentions turn into money you can't reach or shouldn't have sent.