(8)The market making scheme may incentivise investment firms having signed a market making agreement to perform their obligations under normal trading conditions, but should provide incentives for firms effectively contributing to liquidity provision under stressed market conditions. Therefore, there should be a scheme of incentives to limit a sudden and large-scale withdrawal of liquidity under stressed market conditions. In order to avoid divergent application of this obligation, it is important that trading venues communicate the existence of stressed market conditions to all parties to the market making scheme. Exceptional circumstances should be determined exhaustively and therefore do not include any regular or pre-planned information events that may affect the fair value of a financial instrument due to changes in the perception of market risk, whether occurring during or outside trading hours.