The order types that matter
- Market order: fills immediately at the best available price. Fast, but you pay the spread and accept slippage — fine in liquid markets, costly in thin ones.
- Limit order: fills only at your price or better. You control the price; the cost is that you might not fill at all.
- Stop order: becomes a market order once a trigger price is hit. Used to exit losers, not to chase entries.
- Stop-limit: becomes a limit order at the trigger. Protects you from a terrible fill in a gap, at the risk of not filling.
Why limit orders are the disciplined default
- A limit order forces you to decide your price before the market tempts you to chase it.
- You never "pay up" — if price runs away, you miss the trade, which is cheaper than a bad fill.
- In thin or volatile markets, the difference between a market and a limit fill can be your entire edge.
- The only time to use a market order is when speed matters more than price — usually an emergency exit, not an entry.
How to practice limit orders in the simulator
- Set your limit price where the setup is actually valid — not where you hope price will reach.
- Watch the simulator fill you only when price actually trades to your level. No fill means no trade — exactly as it works live.
- Compare your limit fills against where a market order would have filled. Over many trades the cost saving is your edge.
- Practice the discipline of walking away when your limit does not fill — chasing is the mistake the simulator is built to teach you not to make.
Practice this — risk-free
The WallStreet Billionaire simulator runs your trades against real historical charts with a virtual balance. Place limit orders in the simulator and watch them fill only when price reaches your level — the exact behaviour you need to trust before using them live.
Can you get funded?Turn practice into prize money
Same charts, same 15 trades, shared starting balance — the winner takes 8× their buy-in in real money, 2nd gets 3×, 3rd gets 2×. Start with a free 5-trade demo run, or buy into a €5, €25 or €50 division.
Ready for the real market?
Practiced until your numbers are green? Open a live account with a regulated broker — and start small.
Frequently asked questions
When should I use a market order?+
Rarely for entries. Market orders make sense for emergency exits where being out matters more than the price, or in deep, calm markets where the spread is negligible. For entries, a limit order is almost always the more disciplined choice.
What happens if my limit order does not fill?+
Nothing — and that is the point. You miss the trade. The simulator lets you experience how often "missing" is cheaper than "chasing" before it costs you real money.
Last updated: September 2026. Written and maintained by the WallStreet Billionaire research team, the same traders and engineers who build the simulator every guide on this site points to.
Every guide pairs written strategy analysis with an interactive calculator so you can test the claim with your own numbers, then rehearse it risk-free in the simulator. Educational content only — not financial advice. See our imprint.