BitMine Immersion Technologies, DeFi Development Corp and Strive added Ethereum, Solana and Bitcoin to their corporate treasuries during a soft September for digital assets. BitMine bought 27,180 ETH, bringing its holdings to 5.956 million tokens, while DeFi Development increased its Solana position by 2% to 2.39 million SOL and opened a $300 million at-the-market program for its CHAD preferred stock. Strive acquired 469 BTC at an average price of about $77,954, taking its Bitcoin treasury to 25,000 coins. Strategy, the largest public Bitcoin holder, did not add to its 845,050 BTC position and instead repurchased $139 million of STRC preferred shares. The purchases preceded the Federal Open Market Committee's September 16 interest-rate decision, with CME FedWatch placing the probability of a quarter-point increase at 85.6% on September 11.