(120)With regard to conduct that may indicate abusive behaviour within the scope of Regulation (EU) No 596/2014, it is also appropriate to set up a non-exhaustive list of signals of insider dealing and market manipulation which should be taken into account by the operator of a trading venue when examining transactions or orders to trade in order to determine whether the obligation to inform the relevant national competent authority applies, as set out in Articles 31(2) and 54(2) of Directive 2014/65/EU. For that purpose, reference to ‘order to trade’ should encompass all types of orders, including initial orders, modifications, updates and cancellations of orders, irrespective of whether or not they have been executed and irrespective of the means used to access the trading venue.