Roblox shares have cratered roughly 70% from their September 2025 peak near $142, erasing some $70 billion in market value after Q2 2026 results highlighted softening player engagement and monetization shortfalls. Daily active users slid to 123 million from a Q3 2025 high of 152 million, while hours engaged dropped to 29 billion; bookings grew only 8% year-over-year to $1.6 billion, landing at the low end of guidance. CFO Naveen Chopra pinned the gap on fewer "vintage viral games," a shift toward lower-monetizing evergreen experiences, and algorithm tweaks that prioritize long-term retention over immediate spending—changes whose impact on younger users exceeded expectations.