Billionaire investor Mark Cuban has sold the majority of his Bitcoin holdings, expressing disappointment in its performance as a safe-haven asset amid recent geopolitical tensions in Iran and a weakening U.S. dollar. Cuban, who previously viewed Bitcoin as a superior store of value compared to gold, noted that Bitcoin's decline contrasted with gold's rise, challenging his earlier belief. Despite his reduced confidence in Bitcoin, Cuban remains optimistic about Ethereum, while dismissing most other cryptocurrencies as "garbage." Cuban's crypto portfolio was primarily composed of Bitcoin and Ethereum, according to his previous statements.