Aptos has unveiled MonoMove, a redesigned execution engine for the Move virtual machine. The project aims to improve single-thread performance and parallelism by utilizing monomorphized micro-ops and a register-based interpreter. These technical changes are designed to reduce computational overhead during smart contract execution.
Internal benchmarks based on replayed transactions from DecibelTrade indicate throughput gains of 3–8x across various workloads. Specifically, order-book matching showed a 7x improvement, while liquidity-pool swaps saw gains of 5–7x. The company reported a theoretical peak performance increase of up to 55x in specific scenarios.
Development is ongoing throughout 2026, with the engine already integrated into the Aptos block executor. The team plans to implement additional features, including reentrancy checks and gas instrumentation, by the end of the year. The transition will involve differential testing and formal verification against the legacy AptosVM.
A mainnet launch is currently scheduled for 2027, pending governance approval. The company notes that the 55x performance figure represents an upper bound from internal testing, and real-world results may vary once the full feature set is deployed in production environments.
