In finance, a derivative is a contract that derives its value from the performance of an underlying entity. This underlying entity can be an asset, index, or interest rate, and is often simply called the “underlying.”
Idle enables tokenizing the best interest rate among Ethereum money markets. Interview with Iddle co-founder, Matteo Pandolfi.
rDai (redeemable DAI) allows you to invest your money in an Interest generating pool, used for collateralized loans. You still hold on to the exact amount you invested, and can spend and transfer it at will.
The Synthetix platform enables the creation of on-chain synthetic assets that track the value of assets in the real world. Interview with Kain Warwick, founder of Synthetix.