Six Group, a securities, payments and financial information business and caters provider, completed the acquisition of 94.47% stake in ULTUMUS, a ETF & INDEX data specialists. Financial terms were not disclosed. "With ULTUMUS we have found the right partner with unique expertise in ETFs and managed data services. The combination of our capabilities will enable us to provide market-leading services to support our customers in the ETF market. We are delighted to welcome ULTUMUS talent and expertise to our team," Marion Leslie, SIX Group Head Financial Information & member of Executive Board.