Jito’s Block Assembly Marketplace (BAM) offers paid early access to Solana transactions after a validator commits to executing a batch. Subscribers cannot reorder or front-run a transaction within that batch. The commitment is not finality: the validator may skip its slot or land on a fork, and pending transactions outside scheduled batches are not included.
Helius offers the feed on paid plans and charges for slots that deliver messages; Jito does not sell it directly. BAM says early tests found a median lead of 5–10 milliseconds over existing shred feeds, not a guaranteed lead. Coverage is partial because non-BAM leaders and BAM validators that opt out do not produce these messages. BAM’s published revenue allocation is 30% to distributors, 35% to BAM validators and 35% to the Jito DAO; it is not a measure of earnings.
