It's hard to find winners in the current stock market. So when a company's shares surge more than 20% in a single day, many investors ask: Is it too late to buy?Undoubtedly, more than a few people ...

When Roblox (RBLX 0.79%) came to the public markets via direct listing in early 2021, investor excitement was evident as the stock closed on its first day of trading up 54% at $69.50.

Growing its older cohort is what Roblox must do if it's going to accomplish management's long-term vision of reaching one billion users. The fastest-growing age group among older users is 17 to 24.