Risk Management for Beginners: Why Not Losing Is More Important Than Winning

Imagine walking into a casino. You have 100,000 CZK and you bet everything on a single card. You either double up or lose everything. That approach isn't investing — it's gambling. Real investors play a completely different game: they focus first and foremost on not losing money, and only then think about profit.

Why? Because the mathematics of loss is brutal. If you lose 50% of your portfolio, you then need a +100% gain just to get back to zero. A 50% loss doesn't mean a 50% gain will make you whole again — that's one of the most common mistakes beginners make.

---

Why Capital Protection Comes First

Experienced investors share one thing in common: they survived bad market periods because they never allowed a single mistake to destroy their entire portfolio.

Warren Buffett has two famous rules:

Rule No. 1: Don't lose money.
Rule No. 2: Never forget Rule No. 1.

This doesn't mean losses never happen — they happen to everyone. The point is that no single loss should be large enough to take you out of the game entirely.

---

Position Sizing: How Much Money to Put Into One Stock?

Position sizing refers to how much of your total portfolio you invest in a single stock or instrument.

A simple analogy: imagine you have 10 eggs and one basket. If you put all your eggs in one basket and drop it, you lose everything. If you spread the eggs across multiple baskets, losing one doesn't ruin you.

How Does the Maximum 5% Per Position Rule Work?

According to this rule, no single stock should represent more than 5% of the total portfolio. With a 100,000 CZK portfolio, that means a maximum of 5,000 CZK per stock.

Portfolio	Max. 5% per position	Number of different positions
100,000 CZK	5,000 CZK	at least 20
50,000 CZK	2,500 CZK	at least 20
200,000 CZK	10,000 CZK	at least 20

Some more conservative investors use an even stricter limit — 2–3% per position. More aggressive strategies allow up to 10%, but that's for advanced practitioners.

---

The 1–2% Risk Rule Per Trade

Position sizing tells you how much to invest. The 1–2% rule tells you how much you can maximally lose on any single trade.

Specifically: with a 100,000 CZK portfolio, the maximum loss on any single trade should not exceed 1,000–2,000 CZK (1–2% of total portfolio).

Why Exactly 1–2%?

Because even after 10 consecutive losses (which happens to good investors), you'd lose a maximum of 10–20% of your portfolio — a loss you can recover from. By contrast, if you risk 20% of the portfolio per trade and lose five times in a row, your entire portfolio is gone.

---

Concrete Example: A 100,000 CZK Portfolio

Let's see how these rules work in practice. The numbers and tickers below are for illustrative purposes only.

Situation: You want to buy shares of ČEZ (CEZ.PR), currently trading at 900 CZK per share.

Step 1 — Position sizing (max. 5%):

5% of 100,000 CZK = 5,000 CZK
Number of shares: 5,000 ÷ 900 = 5 shares (rounded down)

Step 2 — The 1–2% risk rule:

Maximum loss: 2% of 100,000 CZK = 2,000 CZK
If you buy 5 shares at 900 CZK (= 4,500 CZK total), a 2,000 CZK loss on the full position equals a 400 CZK loss per share
The stop level (see below) would therefore be: 900 – 400 = 500 CZK per share

Result: If the stock fell to 500 CZK, the strategy says that according to pre-defined rules, an investor would reassess the situation — and the loss would not exceed the established 2% portfolio limit.

---

What a Stop Is — and What It Isn't

A stop (or stop-loss level) is a pre-determined price at which an investor, according to their own rules, considers closing a position in order to limit a loss.

⚠️ Important: A stop is not a magic button that automatically sells shares. It is a mental or preset boundary that tells you: "This situation isn't developing as planned — time to reassess."

A stop serves two key functions:

Protects capital — limits the maximum loss per trade
Removes emotions — the decision is made in advance, not in a panic

Without a pre-set stop, it's easy for an investor to hold a losing stock too long, hoping it will "turn around" — while the loss keeps growing.

---

Diversification: Don't Put All Your Eggs in One Basket

Diversification means spreading investments across multiple different assets, sectors, and geographies.

Why Does Diversification Work?

Different stocks don't react to events in the same way. When technology stocks (e.g., NVDA or MSFT) fall due to interest rate concerns, energy stocks (e.g., ČEZ) might hold steady or even rise.

Example of a diversified 100,000 CZK portfolio:

Sector	Example ticker	Allocation	Amount
Technology	AAPL, MSFT	20%	20,000 CZK
Consumer staples	KO	15%	15,000 CZK
Energy	ČEZ	15%	15,000 CZK
Healthcare	various	15%	15,000 CZK
ETF/index	various	20%	20,000 CZK
Cash / reserve	—	15%	15,000 CZK

This is an illustrative example of portfolio allocation only, not an investment recommendation.

The key principle: no single sector should represent more than 20–25% of the portfolio. If one sector falls 30%, the overall portfolio will only feel a fraction of that loss.

---

How to Do This in QMA

QMA offers several tools that help monitor and evaluate portfolio risk — all descriptively, as support for your own decision-making.

/portfolio — Overview and Portfolio Health

The /portfolio page displays the full breakdown of your positions, their weights in the portfolio, and key performance metrics. You can immediately see whether any position exceeds your defined limit (e.g., the 5% rule) and how well diversified the portfolio is across sectors.

The Portfolio Health section alerts you to excessive concentration in a single sector or instrument — exactly what the position sizing rule warns against.

/stocks/[symbol] — Stock Detail Page

On an individual stock's page (e.g., /stocks/CEZ), you'll find historical volatility and other risk indicators. This information helps when calculating where to set a stop level — the more volatile a stock, the wider the price movement buffer that is typically needed.

/screener — Filtering Stocks by Risk Parameters

/screener allows you to filter stocks by sector, volatility, and other parameters. When building a diversified portfolio, it's a useful tool for finding candidates from different industries.

/journal — Trade Records and Discipline

/journal is used to record trades including entry price, reason for buying, and the pre-planned stop level. Writing these rules down before a trade (not after) is one of the most effective methods for maintaining discipline and avoiding emotional decisions.

---

Summary: 4 Key Principles of Risk Management

Protect capital first — without money you can't invest
Position sizing: max. 5% per position — with 100,000 CZK = max. 5,000 CZK per stock
The 1–2% risk rule per trade — max. 1,000–2,000 CZK loss per trade
Diversification — different sectors, different assets, no excessive concentration

Risk management isn't about being timid or avoiding opportunities. It's about staying in the game long enough for compound growth to work in your favor.

---

Disclaimer

QMA is an analytical and educational tool, not investment advice. Past performance is not a guarantee of future results. All investment decisions are your own responsibility.

🛡️Risk Management for Beginners: Why Not Losing Is More Important Than Winning