What is a Board smart group?
A smart group rebuilt on the 1st of each month from the period’s top earners.
Definition
A Board is a Nostra smart group that is rebuilt from scratch on the 1st of every month, using the traders at the top of Polymarket’s leaderboards for one topic.
In more detail
Each Board takes the top 5 traders by profit on Polymarket’s weekly, monthly and all-time leaderboards for its topic, plus the 5 biggest single winners of each period. That makes 30 traders.
Because the rule is fixed, nobody hand-picks the list. A trader who stops winning drops off at the next rebuild, and a new name can join the same day.
Example
Political People is the Politics Board. On 1 December it is rebuilt from that week’s, month’s and all-time politics leaders.
How Nostra uses it
Follow a Board in the Nostra app and you get alerts from every member, including new ones after each rebuild.
See all smart groupsRelated terms
Keep exploring
More from Nostra: rankings by topic, trader profiles, smart groups and plain-English guides.
Polymarket glossary
All 20 terms, from odds and resolution to smart money.
Top traders
Profiles for the 500 best-scored Polymarket traders, with stats and recent calls.
Smart groups
20 self-updating groups, from The Nostra 30 to Weather Wizards.
Smart money
Markets where 3 or more top-scored traders back the same side, checked every 6 hours.
How the score works
What goes into a Nostra score, how often it updates and where it falls short.
Guides
Plain-English guides to finding and following traders on Polymarket.
Nostra for iPhone
See Polymarket’s smart money on your iPhone
Nostra scores about 1,750 traders every week and lets you know when the best of them make a move.
Free to download · iPhone