Wu learned that according to DeFiLlama data, on February 16th, Solana DEX trading volume was $2.517 billion, showing a continuous downward trend and reaching its lowest point since mid December last year. It is worth noting that Solana's top DEX Raydium saw a 39.16% decline in trading volume over the past week, Orca saw a 41.42% decline, while Meteora saw an 18.65% increase.