zzkazu said:
I can set a stop loss trigger price and a limit price. The trigger will seek an exit down to (or up too if shorting) the limit price.
This is the same as what theblip did. Just as he found, such a method will not save you from a big gap which goes beyond both your stop loss trigger and your limit price.
There isn't an answer which is 100% foolproof except for GSLOs with CFDs (but that's a whole other kettle of risk management fish).
Problems which arise with intraday conditional stops;
1. Big market gaps
2. Inability to set the limit price too far away from the trigger price.
3. Inability to set the limit price simply to "At Market".
Both 2 and 3 appear to be ASX rules rather than specific broker limitations.
I used to use the following strategy - it worked reasonably well;
1. Set the stop loss trigger as per usual.
2. Set the limit to as far away as was allowed.
3. Set an SMS to be sent if the stock traded at the stop loss trigger price.
4. Find a computer to log into my broker and check for trade execution if the SMS was received.
I don't recall ever having a stop gap so far with this strategy as to require manually changing to an At Market order (but of course it CAN happen).
These days, I use End of Day stops, not intraday stops. Much less stress and more profitable overall.