Coinbase has acquired Echo in a deal valued between $350 million and $400 million, combining cash and stock, according to Chief Business Officer Shan Aggarwal. The acquisition aims to bolster on-chain compliant financing tools, facilitating the transition of capital markets to blockchain technology. Coinbase has completed 40 acquisitions, focusing on strategic alignment, cultural integration, and long-term value. The company's ultimate goal is to fully migrate capital markets on-chain, offering end-to-end solutions.