Based on the trading volume of invited referrals
You can invite other users using your own referral link. You will receive rewards in POL tokens for the trading volume of the referral you invited.
For every $ 1 of the volume of your invited users, you will receive 0.005 POL. More on this in this article: https://medium.com/polars-platform/polars-referral-program-trading-volume-rewards-2c0464390c4