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Lesson 3 of 14 · Free

Brokers, order types and costs

How to choose a broker, the order types you must know, and the hidden costs that eat profits.

Author: Moustafa HijaziContent reviewed: 2026-10-301 min readSelf-study course

Choosing a broker

  • Regulation: in the EU look for BaFin, CySEC or another EU regulator. Unregulated offshore brokers are a red flag.
  • Costs: spreads, commissions, overnight fees. Compare them on the exact instrument you plan to trade.
  • Platform: you need good charts, fast order entry and a demo account.
  • Negative balance protection: required in the EU for retail clients — you can't lose more than your deposit.

Order types

  • Market order: buy/sell immediately at the current price. Fast, but you may get a slightly worse price (slippage).
  • Limit order: buy/sell only at your price or better. You control the price but may not get filled.
  • Stop order (stop-loss): becomes a market order when price reaches your level. This is how you cap your loss. Every trade needs one.
  • Take-profit: a limit order that closes your trade at your target.
  • Bracket / OCO: entry + stop + target placed together. Ideal: your exits are set before emotions arrive.

The costs nobody talks about

If you pay a €1 spread on a €100 stock and trade 200 times a year, that's 2% of your capital gone before any profit. Overtrading is expensive. Fewer, better trades is the goal.

LeverageLeverage multiplies both gains and losses. A 30:1 leveraged position moves your account 30× faster. We'll show you in Lesson 6 how to size positions so leverage never matters.

Self-check

Answer the questions, then check your answers. You can retry as often as you like.

1. Which order type lets you control the price, but may not be filled?

2. Your stop-loss is at €48. The lesson says a stop order becomes a market order when price reaches your level. What can happen?

3. Assume each trade costs you €2 in spread. You make 50 trades and your account is €5,000. What share of your account do these costs take before any profit?

Automatic self-check for your own revision. Your answers are checked in your browser and are not seen or assessed by us. It is not an exam and not a qualification.

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