Leading cryptocurrencies surged Monday as investors piled into the segment ahead of the release of key inflation data. What Happened: Bitcoin spiked above $60,000 in early trading hours, followed by a seesaw movement within the $58,500 and $59,700 range. Leading Bitcoin mining company Marathon Digital Holdings Inc. (NASDAQ:MARA) announced plans to raise $250 million more to acquire Bitcoin through a new debt offering. Ethereum breached $2,700, reaching its highest level since last week’s Monday sell-off. The second-largest cryptocurrency was now up more than 7% over the week. Total cryptocurre…