Update
Solana PropAMMs Show Wider Spreads Outside Aggregators
A September study of six Solana SOL/USDC propAMMs found wider non-aggregator round-trip spreads in five. GoonFi showed the largest median matched non-aggregator premium, at 3.59 basis points. The study suggests that access to the same pool did not mean access to comparable trading terms, as a single operator can control the pool's quotes and update prices directly.