Question juridique clé
Whether the appeal should be removed from the docket after the appellant's letter was treated as a withdrawal.
Solution extraite
The letter of 15 June 2009 was treated as a withdrawal of the appeal; the case was struck from the docket.
Motifs extraits
Because the appellant stated that the proceedings had become moot after the new FINMA decision, the court construed the submission as a withdrawal within the meaning of the Federal Tribunal Act.