HP's planned acquisition of EDS drove shares in Indian outsourcing specialist Mphasis up 18.84% last week. The firm, 62% owned by EDS, led the gainers in a strong week for the Finextra 50 Financial Technology Index, which closed up four per cent to 88.69. i-Flex and Broadridge also saw significant rises while Thomson Reuters shares experienced their biggest one-week gain since the merger completed. S1, Microgen and Bravura were the only companies to buck the trend last week and record significant share price falls.