Business Bites: Planning for Greece eurozone exit
28 May 2012 Last updated at 14:03 BST
Shares in Spain's fourth-largest bank, Bankia, have plunged 29% on the Madrid stock exchange.
It follows news over the weekend that it would need a 19bn euros ($24bn; £15bn) bailout from the Spanish government.
And firms and financial institutions are increasingly working on drawing up back-up plans should Greece leave the eurozone.
Switzerland has become the latest nation to announce that it has been working on a contingency plan for the disintegration of the euro.
Meanwhile, the European Union moves closer to introducing legislation forcing companies to appoint more female directors.
The BBC's Aaron Heslehurst discusses the key financial stories of the day.