Conference of the European network AMaMeF (Advanced Mathematical Methods in Finance) for promoting the exchange and diffusion of knowledge in the field of Mathematical Finance. The 9th General AMaMeF conference is organized by the LPSM (Laboratoire de Probabilités, Statistique et Modélisation) at Sorbonne University and University Paris Diderot, and LaMME (Laboratoire de Mathématiques et Modélisation d’Évry) at Evry University and ENSIIE.