Solana bots achieve 3x trading advantage via HumidiFi protocol

Research on automated trading in Solana revealed a nearly threefold difference in positive wrapped SOL outcomes among a small group of bots. Transactions utilizing HumidiFi, classified as a proprietary automated market maker, showed a positive WSOL balance change 62.3% of the time, compared to 21.01% for other transactions in the same 12-address group. The analysis included 244,733 transactions invoking HumidiFi, with 152,502 resulting in a positive WSOL balance change, and 218,678 other transactions with 45,949 positive changes, yielding a rate ratio of 2.97. The study examined 200 addresses linked to two trading bot services on Solana, focusing on the top 100 addresses from Trojan and SolanaMevBot. Researchers grouped 158 addresses into four clusters based on transaction intensity and success, identifying three clusters as MEV-like, with WSOL present in 70.90% to 99.94% of transactions. The 12-address group at the center of the profit-rate comparison heavily routed through Jupiter and invoked proprietary AMMs like HumidiFi. The study measured profit as the change in WSOL token balances pre- and post-transaction, indicating a correlation within this cluster but not proving that HumidiFi access caused the performance gap. A separate cluster of 102 addresses focused 80.9% of its activity on the Pump.fun ecosystem, highlighting significant differences in venue choice among the sampled bots.

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