The final stage of the order lifecycle is egress, where the delta of the high-speed trading is securely settled on the Solana, and users can withdraw their assets. This stage is designed to bridge the two performance realms, anchoring the economic finality achieved on BULK to the cryptographic finality of the base layer. This architecture deliberately creates two distinct types of finality. The first is economic finality, which is what a trader feels. Once a supermajority of Solana’s validator stake, acting through the BLS quorum, signs off on a tick, that tick is economically irreversible. The cost to revert such a decision would require compromising a vast portion of the entire Solana network’s security budget. A market maker or high-frequency trader can trust this signal, which arrives in 25-40ms, and immediately update their models and quotes without waiting for a slow on-chain confirmation. This near-instant economic guarantee is what enables true high-frequency strategies. The second type is settlement finality. This is the process of writing the now-finalized delta back to the Solana ledger, which is a less time-sensitive operation. This separation is a key architectural advantage. It allows the trading loop to operate at the speed of light, while the asset custody and settlement loop operates at the speed of solana.