Each deal gives from 1 to 5 points depending on your share in the pool: 1 point - minimum participation; 2 points -> 2.5% of pool; 3 -> 5%, 4 -> 10%, 5 points -> 30% of pool.
The sum of all points determines your rank. When you exit a deal, points for it are reset. In private unique deals, points are fixed.
You can see the statistics in your profile:
