The old green robot is retired. Stonk Bot now wears the studio's mark for it: a rounded window with a line rising inside it, ending in a small glowing dot. It's a window you look through, not a button you press, because the tool only reads a portfolio and never trades.
The same mark is the browser-tab icon and the home-screen icon, and the "Bot" in the name takes the tool's own green from the brand guide, kept separate from the green that means "up today".