Market order
Requests immediate execution at the best available price. The final fill can differ from the price visible when the order was sent, especially in fast or thin markets.
Core order types
Limit order
Sets a maximum buy price or minimum sell price. It controls price but not execution; the market can touch the level without filling the full order.
Stop order
Activates after a trigger price is reached. After activation it may behave like a market order, so the actual fill can be worse than the trigger during gaps or rapid movement.
Stop-limit order
Uses a stop trigger plus a limit price. It adds price control but creates the possibility that no fill occurs after the trigger.
Why fills differ from charts
- Charts can use one data feed while the broker executes from another quote stream.
- Bid/ask spread means a candle midpoint is not always the executable side of the market.
- Latency, queue position, liquidity and order size can affect fill quality.
- News and session gaps can move through a stop level without trading at every intermediate price.
Slippage and partial fills
Positive or negative slippage can occur when the available market changes between order submission and execution. The useful research questions are the provider's execution policy, how rejections work, whether slippage is handled symmetrically and what records are available when a fill is disputed.
Before relying on an order type
- Read the broker's execution and stop-order documentation.
- Test behavior in demo or small size, including session opens and scheduled news.
- Understand whether guaranteed stops exist, what they cost and when they are available.
- Separate the stop level in your plan from the realized loss that can occur after slippage and costs.
Continue
Order examples are educational. Exact order behaviour depends on provider, venue, instrument and account terms.
Research essentials
Use ESTVELO as a research workspace: verify the source, check the jurisdiction, understand the assumptions and separate market information from a personal trading decision.
VerifyPrefer current primary sources for legal entities, rules, costs and product availability.
ContextRead the page together with market, risk and jurisdiction information rather than as an isolated claim.
CostsCheck direct and indirect costs before paying for a trading account, software subscription or service.
RiskNo tool, provider, indicator or infrastructure choice removes market or execution risk.