OTHER DEALS WITH DOUBTS

£21bn Deutsche Boerse merger with London Stock Exchange may fail because of a lack of support from German shareholders.

£700m sell-off of British financial tech success Vocalink to American Mastercard.

Investors, employees and senior politicians are concerned over £24bn takeover of ARM Holdings by Japanese Softbank.

Cadbury owner Mondelez’s planned £200m swoop on part of Burton’s biscuits could see the US giant snare another firm.