Meta quietly dropped a new app called Forum onto the iOS App Store around May 22, and Reddit investors felt the tremor almost instantly. Shares of Reddit (RDDT) slid roughly 6% over May 22-23 as the market digested what amounts to a direct challenge from one of the largest tech companies on the planet to Reddit’s core business: online community discussion.

Forum essentially takes Facebook Groups and repackages them into a standalone, searchable platform built for deeper conversations.

What Forum actually does

The app was first spotted by analyst Matt Navarra in the Apple App Store, not through any formal Meta announcement. Meta is treating this as a testing product, currently limited to the United States.

Users get pseudonymous usernames, a feature that mirrors the anonymity Reddit users have enjoyed for nearly two decades. But there’s a twist: group admins can still access real identities for moderation purposes.

The app also includes an AI-powered “Ask” feature designed to facilitate question-and-answer interactions within communities.

This is not Meta’s first attempt at a standalone Groups app. The company tried this once before, launching a dedicated Groups app back in 2014. That experiment lasted until 2017 before being quietly shelved.

Why Reddit investors are nervous

Reddit’s entire value proposition rests on being the internet’s town square for niche communities. Meta doesn’t need to build from zero. It already has Facebook Groups, which represent an enormous existing base of organized communities. Forum is essentially a new front door to those groups, one that strips away the noise of the Facebook News Feed and focuses purely on discussion.

Analysts at Truist have interpreted the launch as a strategic move by Meta to challenge Reddit’s hold on the public discourse and niche community space.

What this means for investors

Meta has a long history of identifying successful models from competitors and building its own versions, sometimes successfully (Instagram Stories copying Snapchat) and sometimes not (Lasso failing to dent TikTok).

Reddit’s stock reaction may prove to be an overreaction if Forum stays a niche testing product. But if Meta commits real resources and begins a broader rollout, the 6% dip could look like the opening act of a longer repricing of Reddit’s competitive risk profile.