STOCKHOLM--(BUSINESS WIRE)--Orc (STO:ORC), a global leader in derivatives trading technology, today announced a multiyear contract with Erste Group Bank AG. A longtime Orc client, Erste Group’s Equity Capital Markets team has used Orc for trading and market making, in particular on Erste’s own structured products. By migrating to Orc’s Electronic Execution platform, including the Orc FIX Access connectivity product, Erste Group has now consolidated legacy market access gateways into a coherent,