The most likely outcome of Brexit is that the United Kingdom will leave the European Union within weeks with no agreement in place on its future relationship, according to a new CNBC survey of chief financial officers (CFOs).

Britain and Northern Ireland is set to leave the superstate trading bloc on October 31. It is the third deadline for the U.K.’s departure after previous extensions were granted in order to resolve how Britain would withdraw and conduct future trading with EU members.

According to the latest CNBC Global CFO Council quarterly survey, published Friday, 43.5% of chief financial officers now view no deal as the most likely scenario. Almost a third (32.3%) predict a deadline extension, 8.1% expect a deal can be struck by the end of October, 3.2% foresee a second referendum while the remainder (12.9%) are not sure. The strengthening no deal view marks a sharp rise from the second quarter survey which had almost no respondents predicting no deal with most of the opinion that a further deadline extension would happen.