We offer Perpetual Swaps and Futures contracts bought and sold in Bitcoin and Tether that you can go long or short on. Even if you don't hold any, you can still sell.
XBTUSD is our most popular product and is a Perpetual Contract. We encourage all new users to read this guide to understand key concepts.
Some of our other products are in the form of a Futures Contract. This guide explains the mechanics of futures markets.