Yet Roku's shares have trounced the market so far in 2023, rising nearly 80%, while Roblox's stock is down 8% through mid-September.

Roku faces the prospect of heightened competition now that Walmart is looking to buy one of its rivals. Roblox's business has a lot of opportunities for revenue growth, but the big question is ...

Yet Roku's shares have trounced the market so far in 2023, rising nearly 80%, while Roblox's stock is down 8% through mid-September.