Questão jurídica principal
Whether the request for international administrative assistance in the securities matter met the proportionality requirement.
Decisão extraída
Yes. The observed volume surge and unusual price rise, together with rapid purchase and resale through a Swiss bank during the sensitive period, justified the request for clarification.
Fundamentação extraída
The foreign authority already had sufficient indications of possible market distortion and was not required to prove insider trading before seeking assistance; it could ask for transaction details and assess the explanations itself.