THE BLOCK: Solana treasury firm DeFi Development Corp. DFDV added approximately 22,070 SOL and solana:So11111111111111111111111111111111111111112 equivalents over the past week, bringing its total holdings to 2.59 million SOL and equivalents. The company said its treasury has grown 12% since Aug. 12, while its CHAD preferred stock reached a record trading high last week despite the broader crypto drop.