(117)To ensure the necessary level of convergence, it is appropriate to specify a list of circumstances constituting significant damage to investors' interests and the orderly functioning of the market which could be the basis of a decision by a national competent authority, a market operator operating a regulated market or an investment firm or a market operator operating an MTF or an OTF not to demand the suspension or removal of a financial instrument from trading, or not to follow a notification thereto. It is appropriate for such a list to be non-exhaustive as it will thus provide national competent authorities with a framework for the exercise of their judgement and will leave them a necessary degree of flexibility in the assessment of individual cases.