Deutsche Boerse investors are this week expected to lend their backing to a merger with the London Stock Exchange.
The German market giant has until midnight on 12 July to secure the backing of 75 per cent of its shareholders for the deal, but remains confident of progressing the deal.
Investor support would bring the deal one step closer to completion after London Stock Exchange shareholders backed the deal in a vote last week.
The EU's competition regulator is currently weighing approval for the merger.
Despite the optimism around the deal, sources have warned City A.M. that the merger could see the headquarters of the newly created business leave the UK, despite previous pledges that a joint HQ would remain in London.
Spokesmen for the London Stock Exchange and Deutsche Boerse declined to comment.