DraftKings said its predictions platform saw annualized consumer volume rise 24%, while annualized total volume traded surged 34% in May.

Shares of DraftKings (DKNG) rallied on Tuesday after the company provided a preliminary update on key operating metrics for its predictions platform in an SEC filing.

At the time of writing, DKNG stock was up more than 9% and on track for its biggest one-day percentage rise in over three-and-a-half years, if session gains hold.

The company said that for May, its predictions platform saw annualized consumer volume rise 24% from last month to $1.3 billion, while annualized total volume traded for the same period surged 34% to $3.1 billion.