Bakkt, a crypto platform introduced amid great fanfare in 2018 by the owner of the New York Stock Exchange, warned Wednesday that it might not be able to stay in business.

"We might not be able to continue as a going concern," the company said in a document filed with the U.S. Securities and Exchange Commission. "We do not believe that our cash and restricted cash are sufficient to fund our operations for the 12 months following the date of" the filing.