Understanding LOBSTER: A gas-efficient Onchain Order Book Mechanism

Clober, a Monad-based DEX, introduces LOBSTER, a highly optimized onchain order book system that addresses performance and cost bottlenecks in EVM environments. By decoupling trade execution from payment settlement and integrating advanced data structures, LOBSTER makes scalable, gas-efficient order book trading a reality.

Technical Breakthroughs

Segment Tree for Order Matching: Tracks cumulative order sizes, enabling efficient trade recording without looping through every maker.
Octopus Heap: Focuses only on active price levels, allowing logarithmic-time searches for best prices—ideal for market orders.

This is a perfect setup for institutional traders and DeFi pros who are in search of low gas, fast settlement and precise execution.