THE WHAT? Eurofins shares were sent into freefall after the testing firm was implicated in Carson Block’s Muddy Waters research. Stock plummeted in value by up to 25 percent, wiping some €2.3 billion from the company’s market value.

THE DETAILS According to a report published by Bloomberg, Muddy Waters dubbed the firm ‘a company of oddities and contradictions’ as it revealed a short position.

THE WHY? Eurofins declined to comment when contacted by Bloomberg but the news agency reveals that Muddy Waters alleges related-party transactions and confusing cash disclosures.