Fitch Ratings said in a report on Friday that the eurozone would suffer a significant shock if Greece left, but it would be unlikely to trigger a systemic crisis like that in 2012, or another country’s rapid exit.

“The immediate risk of Greece leaving the single currency was eased by last month’s agreement with its official creditors. But the uncompromising stance taken by both sides at times before the agreement highlights the possibility of a future policy mistake. ‘Grexit’ is not our base case, but will remain a risk as more detailed negotiations take place, and as the Greek government tries to maintain domestic support for the deal it secures,” Fitch said in a Ratings Report.