Stop order
Stop Limit order
Ever notice in any of that regulatory framework that your tax dollars pay for.
There is no undertaking for the broker to fill you at any given price whatsoever?
They can fill you at whatever price they like!
Whenever they like, however they like, as they so choose.
They can fill a limit order how ever many points they like above or below the price.
They can fill a stop order, oh so you think your stops are protecting you?
At any price they like, AS A MARKET ORDER!