FTSE 100 edges higher.

UK's FTSE 100 index advanced on Friday, on track for its first weekly rise in four as investors awaited cues on the US interest rate outlook, while a slump in the shares of CMC Markets and Watches of Switzerland weighed on the mid-cap index. The exporter-heavy FTSE 100 rose 0.3 percent, while the FTSE 250 index slipped 0.1 percent. Both the indexes were on track for weekly gains...