Decentralized exchange Trader Joe posted a video on its Twitter recently, which contained the words "Liquidity Book Chapter 4" and the logo of Ethereum. It indicates that the DEX is going to deploy on Ethereum, but Trader Joe hasn't revealed the launch date and other information.
Liquidity Book is Trader Joe's new AMM launched last November. It introduces a new approach to liquidity provisioning. Liquidity providers (LPs) can deposit liquidity into discrete price bins, each bin is assigned a specific price and LPs may provide liquidity to multiple bins. All liquidity deposited into bins is given fungible token receipts.
In addition, Liquidity Book introduces a fee structure called Surge Pricing, which has two components, a base fee and a variable fee. The base fee represents the minimum fee rate for all trades, and the variable fee is adjusted to account for volatility. The more volatile the assets are in a Liquidity Pool, the higher the variable fee will be.
Currently, Trader Joe is live on Avalanche, Arbitrum and BNB Chain.