Shares in troubled payments companyWirecard AG crashed Thursday after the company again delayed publication of its 2019 annual report because its auditor said it had been deceived over evidence of €1.9 billion ($2.1 billion) in cash balances.

Wirecard, based in Germany, said its management board was working intensively with auditor Ernst & Young GmbH in Munich to clarify the situation. Shares in Wirecard, one of the biggest and fastest-growing European fintech companies, were down as much as 67% immediately after the announcement.

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