How stop loss orders generally behave
A standard stop loss becomes a market order once the trigger price trades, which means the fill price can differ from the trigger price in fast or gapping markets. This difference is called slippage. Some brokers also offer guaranteed stop losses, which fix the exit price in exchange for a fee or wider spread, and trailing stops, which move the trigger as the price moves in your favor. Availability of each type depends on the broker, the platform, the instrument and your region, so none of these should be assumed.
- A regular stop does not promise your exit price; it promises an attempt to exit once triggered.
- Gaps over weekends or around news can cause fills well beyond the stop level.
- Guaranteed and trailing stops, where offered, come with their own conditions and costs.


