A logo logo is seen at the seat of Swiss stock exchange operator SIX Group in Zurich, Switzerland June 17, 2019. Picture taken June 17, 2019. REUTERS/Arnd Wiegmann/File Photo Purchase Licensing ...

The logo of Swiss stock exchange operator SIX Group is seen in Zurich, Switzerland November 10, 2017. REUTERS/Arnd Wiegmann/ File Photo Purchase Licensing Rights, opens new tab ...

Reuters. FILE PHOTO: A logo logo is seen at the seat of Swiss stock exchange operator SIX Group in Zurich, Switzerland June 17, 2019. Picture taken June 17, 2019.