The sports data giant Sportradar Group AG is now confronting a securities fraud class action lawsuit. This follows allegations from short-seller firms that the company knowingly collaborated with black-market gambling operators to boost revenue, triggering a stock plunge of over 22% and erasing approximately $8 billion in market capitalization.

The lawsuit has been filed in the U.S. District Court for the Southern District of New York. The defendants include Sportradar and executives such as CEO Carsten Koerl, with claims brought under the Securities Exchange Act of 1934. The suit covers investors who purchased the company's Class A ordinary shares between November 7, 2024, and April 21, 2026.

The catalyst for the event was on April 22, 2026, when prominent short-sellers Muddy Waters Research and Callisto Research released reports on the same day. Muddy Waters stated bluntly in its report: "The company actively aids and abets illegal gambling in global black and gray markets. This is not an accident or oversight; it is a business strategy." Muddy Waters estimates that illegal operators contribute between 20% and 40% of Sportradar's total revenue.

Callisto Research found that among the 800 gambling platforms Sportradar claims to serve, over 270 were using the company's products while operating illegally in regulated or prohibited markets. The report also noted that a former senior employee estimated the business exposure to unlicensed operators could be as high as 30% to 40% of revenue.

As a result of these reports, Sportradar's share price fell 22.6% on the day, dropping from $16.84 to $13.04, wiping out roughly $8 billion in market value.

The complaint alleges that Sportradar's "Know Your Customer" and compliance processes were not as robust as the company claimed. The company had consistently stated it adhered strictly to laws and regulations and considered ethics and integrity "critical" elements of its operations, but these statements are alleged to have been misleading.

Currently, several law firms have announced their involvement in the litigation. The deadline for investors to apply to serve as lead plaintiff is July 17, 2026.