InfrastructureKeynote

Jito Operationalizes 'ACE' Market Structure on 8% of Solana Stake

Jito Labs is redefining Solana's execution layer by transitioning from generic high-throughput to verifiable, programmable capital markets. The introduction of Application-Controlled Execution (ACE) allows protocols to dictate their own ordering rules, a critical evolution for institutional liquidity.

/// Executive Intelligence

  • 01

    Adoption Milestone: Jito's Block Assembly Marketplace (BAM) is live on 8% of network stake, processing hundreds of millions of transactions via Trusted Execution Environments.

  • 02

    Programmable Liquidity: The new ACE feature enables apps to enforce custom microstructure, such as maker priority, to tighten spreads and improve execution quality.

  • 03

    Technical Roadmap: Jito confirmed the development of FireBAM, a high-performance integration with the Firedancer client, alongside a full open-source release targeting Q1.

The narrative at Breakpoint 2025 has shifted decisively from raw speed to execution determinism. Jito Labs CEO Lucas Bruder argued that while Solana has won the "speed war"—citing a 6x increase in TPS and exponential blockspace growth—the next frontier is the "structure war." The introduction of the Block Assembly Marketplace (BAM) represents a pivot toward a transparent, verifiable execution layer where the rules of the market are as immutable as the ledger itself. For institutional investors, this moves Solana from a high-speed casino to a regulated capital market venue.

The most significant alpha for developers and liquidity providers is Application-Controlled Execution (ACE). Historically, on-chain applications have been beholden to generic, global transaction schedulers that often leak value to predatory MEV strategies. ACE inverts this model, allowing protocols to define their own sequencing logic. By implementing rules like "maker priority," DEXs can protect liquidity providers from toxic flow, resulting in tighter spreads and deeper liquidity. This capability allows Solana applications to mimic the sophisticated market microstructure of centralized high-frequency trading venues while retaining non-custodial security.

Crucially, Jito is addressing the "black box" problem that keeps many institutions on the sidelines. Through the use of Trusted Execution Environments (TEEs) and the upcoming BAM Attestation Report Service (BARS), the protocol offers cryptographic proof that execution rules were followed. This verifiability—coupled with the announcement of FireBAM, a highly anticipated integration with the Firedancer client—suggests a future where high-performance, auditable execution is the standard, not the exception, for Solana's financial stack.

Why This Matters

BAM by Jito introduces significant enhancements to Solana's infrastructure, enabling customizable and verifiable block scheduling, potentially influencing MEV and application-specific execution strategies.