DYDX is a protocol, built on 0x and Ethereum, for creating, issuing and trading financial derivatives for any ERC20 token. Using off-chain order books and on-chain settlements, it allows an efficient, global and trustless means for trading short sells, long positions and options via a centralized UI relay. It is led by Antonio Juliano, formerly of Coinbase and Uber, and has so far received funding from Andreessen Horowitz, Kindred+ Ventures, Abstract Ventures, 1c and Polychain Capital.
Killer project, I love it. Very reliable, very creative, live support works a charm.
Ok, maybe I'm biased: I shorted ether just before it crashed !
But still. Very serious thing, we might see more crypto-derivatives like that in the future.