According to Foresight News, Solana's on-chain decentralized exchange (DEX) has experienced a significant increase in trading volume. The data from DefiLlama reveals that the 7-day trading volume reached $8.85 billion, marking a 7.35% increase. Furthermore, the 24-hour trading volume was reported to be $906 million. This surge in trading volume indicates a growing interest and activity in Solana's DEX. It's worth noting that these figures are subject to change as the market conditions fluctuate.