Reddit, Roblox and Pinterest Tumble After Third-Quarter Reports

Social and consumer-internet stocks sold off sharply after earnings. Reddit fell 24%, Roblox dropped 16% and Pinterest slid 6% following their third-quarter results.

The declines came as the Nasdaq lost 2.86% on Friday, its worst day since June 5, with October ending as the index's worst month since March 2025.

The moves are a reminder that advertising- and engagement-driven platforms face a tough bar after a strong run, and that investors are punishing any disappointment in a market already worried about technology valuations.