Bullet

Bullet is Solana's first network extension built specifically for high-performance trading. It operates as a purpose-built execution layer that extends Solana's base chain with dedicated infrastructure for decentralized derivatives and spot markets, settling all transactions back to Solana L1 via zero-knowledge proofs. Bullet is the successor to Zeta Markets, which was Solana's first order-book perpetuals DEX. Zeta Markets shut down its original L1 product in May 2025 to redirect all resources to Bullet. The Bullet mainnet launched publicly at Token2049 Singapore on September 29, 2025.

The Problem Bullet Addresses

The performance gap between centralized exchanges and on-chain trading venues has been one of the defining limitations of decentralized finance. Hyperliquid's rise illustrated the appetite for faster settlement: at the time Bullet was in active development, Hyperliquid was processing roughly six times the perpetuals volume of all Solana DEXes combined. Zeta Markets, operating on Solana L1, found that even Solana's throughput introduced enough latency and congestion to make sophisticated order-book trading difficult to deliver at scale. Rather than continue adapting to those constraints, the team chose to build a dedicated execution layer that offloads transaction matching and execution from the base chain while settling final state back to it.

Architecture

Bullet is designed as an application-specific execution environment, not a general-purpose L2. It runs native Rust code with no virtual machine overhead, allowing it to process trading operations directly against a custom runtime. Transactions are sequenced through an application-specific sequencer that processes them in first-in, first-out (FIFO) order—a model that eliminates the priority auctions and front-running opportunities that arise on general-purpose chains with open mempool access.

The full stack comprises four components:

Execution. Bullet Core is a Rust-based matching engine that provides sub-millisecond soft confirmations. At mainnet launch, the team claimed sub-1ms execution latency and throughput of 30,000 orders per second.

Data Availability. Celestia is used to store transaction data cost-effectively, reducing the overhead of posting full transaction records to Solana L1. The team announced the Celestia integration publicly at the Token2049 mainnet launch.

Verification. Succinct Labs' SP1 zero-knowledge proof framework generates cryptographic attestations that verify the correctness of the execution engine's output. These proofs are posted to Solana L1, allowing anyone to verify that the off-chain execution was performed correctly without re-executing the full computation.

Settlement. Verified transaction batches settle on Solana L1, anchoring finality to Solana's validator set and consensus guarantees. Hard finality lands on-chain within approximately 5-12 seconds.

This architecture means user funds ultimately settle under Solana's security model while the latency-sensitive matching and execution work happens in the dedicated execution layer.

Products

Bullet hosts Zeta X, its flagship trading application. Zeta X is a full-featured exchange offering perpetual futures across more than 100 markets with leverage of up to 100x, spot trading with cross-margin support, and an integrated lending and borrowing engine. The exchange uses a central limit order book paired with a derivatives risk engine, enabling institutional-style order types and margin management.

On the user-experience side, Bullet supports multi-wallet connectivity including Phantom and Solflare, and the team has outlined plans for wallet abstraction and gas abstraction to reduce friction for traders moving from centralized venues.

Token

Zeta Markets issued the ZEX token as part of its token generation event in June 2024. With Bullet mainnet going live, ZEX migrated to a new native asset on the Bullet network at a 1:1 conversion ratio. The token is used for gas payments within the network, staking to participate in network security, governance, and fee discounts on Zeta X.

Funding and Background

Tristan Frizza co-founded Zeta Markets, the entity behind Bullet's development. The project has raised $13.5 million across two rounds. The first, an $8.5 million seed led by Jump Capital, closed in December 2021 and funded the original Zeta Markets L1 product. The second, a $5 million strategic round led by Electric Capital, was announced in May 2024 specifically to fund Bullet's development as Solana's first DeFi L2. That round included institutional participation from Digital Asset Capital Management (DACM), Selini Capital, and Airtree Ventures, as well as angel investors including Anatoly Yakovenko (Solana co-founder), Mert Mumtaz (Helius), Richard Wu (Tensor), Genia Mikhalchenko (Pyth), JMR Luna (Wintermute), and Nom (Bonk).

Positioning Within the Solana Ecosystem

Bullet positions itself as infrastructure that makes Solana more capable as a trading venue rather than as a competing chain. Final settlement on Solana means that the network extension inherits Solana's validator security rather than introducing an independent trust assumption. The Bullet team describes the project as "Solana's trading layer"—the execution environment that handles the performance-sensitive work while the base chain provides settlement and security.

The choice of an application-specific design—native Rust, FIFO sequencing, no general-purpose VM—reflects a deliberate tradeoff: Bullet cannot host arbitrary smart contracts, but the narrow scope allows it to optimize aggressively for the one use case it is built around. That tradeoff positions Bullet alongside other specialized appchains rather than generalized rollups, and squarely in competition with Hyperliquid for the high-frequency perpetuals market on Solana.