About $4.6bn was paid into the Troika network, and a similar sum was paid out of it. It was operated by staff at an independent arm of the Russian investment bank Troika Dialog, which has now been merged with one of Russia's two big state-owned banks.
A total of around $4.6 billion was transferred to and from the Troika network. The operation was overseen by staff members at a separate division of the Russian investment bank Troika Dialog, which has now been merged with a prominent Russian state-owned financial institution.