London pre-open: Stocks expected to open higher

London's benchmark index is expected to start trading with moderate gains on Monday morning following on from a strong performance for Asian stocks overnight.Meanwhile, Spanish bond yields will be in focus this week ahead of the country's debt auction on Thursday, the first auction since the country's sovereign debt rating was downgraded by Standard and Poor's last week.City sources predict the FTSE 100 will open up 18 points from Friday's close of 5,777.  Fund manager Aberdeen Asset Management has reported a solid rise in revenue and profit in its first half which it says it down to a return of investor appetite for risk assets in 2012 and an ongoing desire for yield.Revenue increased by 7% in the six months to March 31st, from £385.9m to £413.1m. Meanwhile, underlying pre-tax profit before amortisation and impairment of intangibles rose 14% from £142.8m to £162.2m.Advertising conglomerate WPP has made a small strategic investment in Enprecis, a US company which uses a proprietary online platform to collect and analyse data about consumer experience for the car industry.WPP is paying $1.2m for a minority stake in Enprecis, continuing its strategy of investing in fast-growing markets and sectors and further strengthening the capabilities of Kantar, its insight, information and consultancy group.Fidessa, the software provider focused on the financial community, reckons things will remain tough for its clients for some time, and expects some of them to leave the market altogether.Despite the challenging conditions that have persisted within the financial markets, Fidessa continued to deliver growth during the first quarter of 2012. Progress has been made across the regions, particularly with larger customers as they seek strategic partners with scale, vision and resource to support their broadening needs.  BC