Jito Labs Prepares 'Application-Controlled Execution' for Solana

Jito Labs is a major force in Solana's transaction processing, with its validator client used by over 90% of the network's stake. The company specializes in infrastructure for Maximal Extractable Value (MEV), the profit that can be made by reordering, including, or excluding transactions within a block. Jito's system creates a more efficient market for MEV on Solana, moving away from spam-based bots to an auction model. This infrastructure generated an additional $750M in revenue for the network, with validator tips growing from $3.52 million in 2023 to $674 million in 2024. Beyond its validator software, Jito operates the largest liquid staking protocol on Solana. Its JitoSOL token allows users to earn staking rewards and a share of MEV revenue while maintaining the liquidity of their SOL to use in other DeFi applications. Founded in 2021, Jito Labs has raised $12.1 million in a Series A round led by Multicoin Capital and Framework Ventures. This funding has supported the development of its core products, including the Jito Block Engine which facilitates off-chain blockspace auctions. The upcoming Application-Controlled Execution (ACE) feature represents an evolution of Jito's existing "bundle" system, which allows transactions to be executed sequentially and atomically. ACE will grant applications more direct power over this sequencing, crucial for complex DeFi products that are sensitive to execution order and timing. For perpetuals exchanges, controlling transaction order can mitigate front-running and improve price execution for traders. This level of control is a significant step beyond simply prioritizing transactions with tips. The decision to open-source the Block Aware Mempool (BAM) code aligns with a broader strategy of transparency and ecosystem growth. It allows other developers to build upon and integrate with Jito's infrastructure, potentially fostering more innovation in Solana's MEV landscape.