Deutsche Börse AG said Tuesday that it invested $200 million in Kraken’s parent company, Payward, as the American crypto exchange pushes further into the traditional finance world.

The German finance firm, which runs the Frankfurt Stock Exchange, said the deal was to “leverage their complementary capabilities to bridge traditional financial markets and the digital asset economy.” The deal — secondary transaction — sees Deutsche Börse AG buy existing shares, giving it a 1.5% fully diluted stake in the company.