[U.S. SEC Suspends Trading of Bitcoin, Ethereum Treasury Company QMMM Stock] According to Golden Finance, digital advertising company QMMM Holdings announced earlier this month that it is purchasing Bitcoin, Ethereum, and Solana. After the company shifted to a cryptocurrency strategy, its stock surged by over 2,100% in the past month. The U.S. Securities and Exchange Commission (SEC) has now suspended trading of the stock, citing potential market manipulation.