Deutsche Börse, the German exchange and clearing group, confirmed yesterday it had put forward a final bid to buy a majority stake in the Warsaw stock exchange, which is being privatised by the Polish government.

Potential buyers have until the end of Friday to place bids. The German group, Europe's biggest exchange company, was one of four companies shortlisted, including the London Stock Exchange, NYSE Euronext and Nasdaq OMX, to take part in the privatisation.