Top trader monthly
$500in the leaderboard pool
Top 10 traders split the pool each month.
Welcome offer
$25free on signup
No deposit required. Trade markets immediately.
Refer a friend
$10per friend that signs up
Up to $200 in referral credit per month.
First trade match
2×your first $25 stake
Matched up to $25 on your first trade.
Top markets
Live · updated nowAll markets19
01
Pick a market
Politics, sports, crypto, culture, tech — every market resolves to a clear yes or no with a public source like FIFA, Coinbase, or NBER.
02
Take a position
Buy YES or NO shares at the current price (in cents). Prices move with the crowd's belief; your edge is finding mispriced ones.
03
Cash out when right
Winning shares pay 100¢ at resolution. Sell early once the market moves your way, or hold to expiry — whichever you prefer.
LIVE · INSIDER
Markets on the move
Activity from across Granbay this session
Closing in closed
KDJFAKJDFA9DJAODFI
politicsclosed
High volume · Trending
Ibovespa (^BVSP) closing price Friday (1) 2026-05-15
economics$50
High volume · Trending
What price will Bitcoin hit week of 2026-05-11?
crypto$0
High volume · Trending
What price will Bitcoin hit week of 2026-05-18?
crypto$0
High volume · Trending
Will Real Madrid win the 2025/26 UEFA Champions League?
sports$60K
Breaking