Over the past couple of years there has been a lot of activity not just in DeFi but in the evolution of on-and-off chain platforms for trading derivatives and perpetual contracts.
Below is a non-exhaustive table that attempts to segment and differentiate who some of the major players known. It is a work in progress and likely is missing some parts. For instance, of those listed: Synthetix and uSTONKS are the only ones that track indices and Mirror (built on Terra) attempts to track real world assets. A notable company excluded from the list: FTX (a large CEX) trades tokenizes equities and indices.
|Own Layer I|
|Perpetual Protocol (xDai Chain)||ChainLink||DEX||Perpetuals|
|Ethereum Layer I / II|
|BBX (sub of OKEx)||N/A||CEX||Perpetuals|
What is missing, what should be added, what nuances should be made?