That brought the total of Euronext's bid to $783 million (691 million euros) compared to Nasdaq's $770 million. However the management of the Oslo stock exchange said it would continue to endorse Nasdaq's offer, which is has described as better for its capital market and companies.
"Our recommendation and that of the board of directors regarding the best strategic ownership remains unchanged," Bente Landsnes, the head of the Oslo Bors, told AFP.