Prediction Markets Communities

FAQ

What are prediction markets communities?

Online communities for forecasting future events, debating prediction markets, and sharpening your probabilistic thinking skills.

What are the most popular prediction markets communities on Hive Index?

r/forecasting, Metaculus Discord, Metaculus, and Polymarket are among the most popular prediction markets communities in the Hive Index directory of communities, based on visitor interest on Hive Index. This is not a universal quality score. You can also compare listings by review scores, member counts, and listing age on Hive Index.

Which platforms host the most prediction markets communities?

Independent Platforms (11), Reddit (6), and Discord (3) are the most common platforms for prediction markets communities in the Hive Index directory of communities.

Are prediction markets communities free to join?

All 20 listings in the Hive Index directory of communities are marked as free to join. Popular examples include r/forecasting, Metaculus Discord, Metaculus, and Polymarket. Access rules can still change on the community side.

What features do these communities offer?

Forum is the most common (85%). Others that show up often include Live Chat. Use feature filters on Hive Index to narrow results.

How large are prediction markets communities?

Hive Index lists 20 prediction markets communities in the Hive Index directory of communities. The largest include r/futurology (21.7M members), r/SampleSize (271K members), and PredictIt (50K members). Median reported size is about 20K members (13 listings with member data). This is a smaller slice of our database, so read trends as directional.

How do I grow my Prediction Markets community?

List your Prediction Markets community for free on Hive Index to reach people already searching for Prediction Markets communities. Paid promotion can feature your community more prominently across relevant pages and send more qualified visitors to your listing.

How does Hive Index collect and rank listings?

Listings are submitted by community builders and researchers, reviewed for topic relevance, and updated with platform, feature, member, review, and traffic data where available. Member counts are approximate. Popular reflects visitor interest in the Hive Index directory of communities, with richer profiles breaking ties. Ratings, Largest, and Newest use review scores, reported member counts, and listing age instead. These listings in the Hive Index directory of communities were last updated 10/15/2026.