The move: Roblox stock plunged as much as 20.3% on Thursday, paring that decline to about 13% at 3:05 p.m. ET. The chart: Why: The video game platform released mixed fourth-quarter earnings that ...

Richard Sim, the senior director of product for monetization at Roblox shared his daily routine. He starts with a bike ride, then heads into the office where he works with more than 60 engineers.