Juventus' share price tumbled after their Champions League elimination by Ajax.
Tuesday night's shock saw Juve's share price fall 24 per cent.
Juve closed business on Tuesday at €1.69 but opened the following morning at just €1.30, although the price climbed back up to €1.41.
It marks Juve's biggest fall for some time – greater than after their 2-0 defeat to Atletico Madrid in February.
Juve have also missed out on €13m in prize money, as well as potentially €33m if they won the competition.