Spark generated more than $4 million in net protocol revenue during the third quarter, marking a significant recovery for the DeFi lending platform. This performance comes despite challenging market conditions that saw lending spreads narrow sharply in the first half of the year. The revenue milestone follows a difficult second quarter when profit margins on lent capital turned negative. The return to profitability in Q3 signals improved operational efficiency and margin expansion as DeFi lending dynamics stabilized after earlier compression.