Why was my Order to Open filled at the wrong level?

Sometimes it is not possible for your stop or limit order to be transacted at the exact price you have specified.  This may happen when the market moves very quickly or is very illiquid. In these cases, your order may be transacted at a level different to the one you have specified.  The difference in levels is called 'slippage' and will be determined by us on a fair and reasonable basis. Unless agreed, please remember that Stop Loss orders are not guaranteed. For further information please view our Terms and Conditions.