Solana's DEX ecosystem is currently dominated by aggregators, which recently accounted for over 60% of routed volume, peaking at 70% in early October and handling $29 billion in total volume. Jupiter led the way with 81.6% of aggregator activity, but its share has declined from 99.9% in March as competitors like OKX, DFlow, and Titan have emerged. Proprietary AMMs like SolFi and Humidifi are gaining favor over traditional DEXs like Raydium, with Jupiter routing a seven-month high of $25.8 billion in volume. Aggregators are reshaping liquidity flows, emphasizing intelligent routing over siloed pools.