I have noticed that Pepperstone pairs jump around a lot at market close (currently 2100 UK time, will change to 2200 UK time after daylight savings).
Major pairs seem fine but when trading exotic pairs like CADCHF and EURSEK we will need to be careful. Spreads increase dramatically too.
In future, it may be worth cancelling stop-losses just before market close when trading exotic pairs and then re-placing the stops once spreads have returned to normal.
Just a thought...
That makes sense as this is when the Sydney market opens as liquidity is low. USDMXN I have seen spreads of 1000 during this time- during the Asian session spreads on this pair vary from 150- 400.