On 25 April, this Paper was published by MDPI. It considers the impact of the FATF’s grey listing process from a market perspective. The results are intended to inform the development of public policy and improvement of market signalling. It finds significant correlations between many financial variables and FATF listing events, including an apparent reduction in development assistance during grey listing periods which endured after the country was delisted. This is of significant concern, as such reductions may impact disproportionately on developing economies.