 Cloud-based restaurant software company Toast Incs NYSE: TOST blockbuster New York Stock Exchange debut on Wednesday has made each of the three co-founders stakes worth over 1 billion. What Happened: Toasts market cap soared past 30 billion on Wednesday and lifted the three co-founders Steve Fredette, Aman Narang and Jonathan Grimm collective stake to 5.3 billion, CNBC first reported on Wednesday. 