Andrea Orcel stunned Germany last week by raising UniCredit’s stake in Commerzbank from 9 per cent to 21 per cent in a manoeuvre that mirrored tactics made notorious in hostile takeover battles more than a decade ago.

Commerzbank's Chief Executive Officer said on Tuesday that the Italian bank UniCredit "might want more" of Commerzbank and that "this wasn't something we chose".

A senior German banker said there a several reasons why a takeover of Commerzbank AG by UniCredit SpA could be beneficial, demonstrating that the strong opposition to the potential deal by the country’s government isn’t a national consensus.