Roblox Plunges 27% After Weak Q3 Guide Signals First-Ever Negative Bookings Decline

Roblox shares fell about 27% Friday, the worst single-day drop on record, after guiding Q3 bookings to $1.576-1.653B, an 18-14% YoY decline that would be its first-ever negative bookings guide. Q2 revenue rose 36% to $1.5B but the company withdrew annual guidance amid decelerating monetization in the under-13 cohort. Benchmark, BTIG and Wedbush all downgraded, citing possible platform lifecycle decline in a market that had queued the stock up as a proxy for AI-generated UGC.