PropAMMs dominate Solana swaps, routing most DeFi trades to professional market makers

When a user swaps SOL for USDC on Jupiter, the price displayed appears to come from a single source, but the order is actually routed through a mix of public DEX pools, proprietary automated market makers (propAMMs), and request‑for‑quote (RFQ) networks that pit professional market makers against each other.

PropAMMs capture the bulk of Solana trade volume

DWF Ventures estimates that propAMMs account for 15‑27% of daily on‑chain DEX volume overall, but for SOL‑to‑stablecoin trades routed through Jupiter their share exceeds 90%. Weekly spot volume from propAMMs can reach 27% of the total.

How propAMMs differ from traditional AMMs

Traditional AMMs rely on pooled liquidity from many users and adjust prices via a deterministic formula, which can lag behind fast market moves and invite arbitrage. PropAMMs, by contrast, are operated by professional firms that supply their own inventory and continuously update quotes based on external market data, effectively acting as electronic dealers inside the blockchain.

Execution quality and cost advantage

Jump Crypto’s analysis of roughly 20 million propAMM fills on Solana found a median execution price 0.72 basis points from the benchmark centralized‑exchange midpoint, and 91.9% of fills were cheaper than the lowest institutional fee tier on major exchanges.

DeFi routers become order‑routing platforms

Jupiter aggregates public DEX liquidity, propAMM quotes, and off‑chain RFQ offers, presenting users with a single price while the underlying order may be filled by any of these sources. This mirrors traditional brokerage routing, where the broker selects the venue that offers the best execution.

Implications for the future of DeFi

The rise of propAMMs suggests a shift from the open‑pool model of early DeFi toward a hybrid structure where professional dealers handle high‑liquidity assets, while public AMMs remain important for newer or less liquid tokens.