Bitcoin miner Marathon Digital is planning to raise $750 million through a hybrid equity offering. The company will use the proceeds to invest in new mining equipment and expand its operations. The hybrid equity offering will consist of a common stock offering and a convertible preferred stock offering. The common stock offering will allow Marathon Digital to raise capital immediately, while the convertible preferred stock offering will give investors the option to convert their shares into common stock in the future. The hybrid equity offering is a sign of Marathon Digital's confidence in the future of Bitcoin mining.